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Obzory poluchili special'nyi diplom na konkurse RSCI


Podpiska na rassylku obzorov astro-ph na Subscribe.Ru





  • 20.09.2003. Filamenty mezhdu skopleniyami galaktik
    11.09.2003. Obrazovanie dzhetov pri kollapse zvezd


    Soderzhanie i bystryi perehod k razdelam obzora


    Stat'i nedeli
    "Luchshie iz luchshih"

  • astro-ph/0310028
    Magnitnye polya i kosmicheskie luchi v potokah ohlazhdeniya

  • astro-ph/0310031
    Morfogenez zvezdnyh potokov v prilozhenii k planetarnym tumannostyam

  • astro-ph/0310120
    Kometnaya panspermiya mozhet ob'yasnit' krasnye dozhdi v Kerale

  • astro-ph/0310253
    Dodekaedral'naya topologiya Vselennoi

  • astro-ph/0310379
    Issledovanie effekta "chernoi kapli" pri prohozhdenii Merkuriya do disku Solnca po nablyudeniyam iz kosmosa


    Otdel'nye stat'i
  • Modelirovanie konvekcii v yadrah A-zvezd: differencial'noe vrashenie i overshuting
  • Nablyudatel'nye i fizicheskie svoistva sverhnovyh tipa II s plato
  • Proekt DIRECT
  • Magnitnye polya i kosmicheskie luchi v potokah s ohlazhdeniem
  • Modeli Solnca i solnechnye neitrino
  • Morfogenez zvezdnyh potokov v prilozhenii k planetarnym tumannostyam
  • Elektromagnitnaya model' gamma-vspleska (protiv modeli faerbola)
  • Dve novyh tesnyh dvoinyh v planetarnyh tumannostyah yuzhnogo polushariya
  • Para dvoinyh radiogalaktik - ostatki sliyaniya dvoinyh sverhmassivnyh chernyh dyr
  • Habblovskii potok na blizkih rasstoyaniyah: komp'yuternoe modelirovanie dinamicheskoi istorii
  • Teleskopy s vrashayushimsya ob'ektivom
  • Relyativistskii kollaps vrashayushihsya sverhmassivnyh zvezd v sverhmassivnye chernye dyry
  • Registraciya planet, "prohodyashih po diskam zvezd", s promezhutochnymi periodami s pomosh'yu seti malyh teleskopov - transitsearch.org
  • Elliptichnost' diskov v spiral'nyh galaktikah
  • Kometnaya panspermiya mozhet ob'yasnit' krasnye dozhdi v Kerale
  • Apsidal'naya korotaciya pri rezonanse srednih dvizheniya: na primere planetnoi sistemy 55 Cancri
  • Status neitrinnogo proekta ANTARES
  • Fizika neitrino i kosmologiya
  • Magnitovrashatel'nyi mehanizm vzryva sverhnovoi vtorogo tipa
  • Populyacii zvezd vnutri skoplenii galaktik
  • IceCube-Plus: teleskop dlya neitrino sverhvysokih energii
  • Temp rozhdeniya pul'sarov po Parksovskomu obzoru
  • Set' Peremennyh Zvezd: mirovoi centr astronomii tranzientnyh ob'ektov i peremennyh zvezd
  • Chastota vspyshek infrakrasnyh sverhnovyh
  • Prilivnaya dissipaciya vo vrashayushihsya planetah-gigantah
  • Akkreciya na bystrye rentgenovskie pul'sary
  • Dodekaedral'naya topologiya Vselennoi, kak ob'yasnenie temperaturnyh korrelyacii reliktovogo fona na bol'shih uglovyh masshtabah
  • Kosmologicheskaya evolyuciya mass chernyh dyr v kvazarah
  • Evolyuciya uglovogo momenta zvezd s massami 0.1-10Mo Ot rozhdeniya do glavnoi posledovatel'nosti
  • Pervye oblasti HII vo Vselennoi
  • Ozhidaemyi svoistva radioimpul'sov ot padeniya na Lunu potokov EeV neitrino
  • Puzyri i sverhpuzyri
  • Priroda GRB980425 i poisk neosevyh effektov v blizkih sverhnovyh tipa Ib/c
  • Neozhidanno bol'shie fluktuacii v statistike obrazovaniya galaktik na bol'shih krasnyh smesheniyah
  • Otkrytie dvuh dvoinyh millisekundnyh pul'sarov v sharovom skoplenii M30
  • Fizicheskie ogranicheniya na modeli gamma-vspleskov
  • Chto obshego u astrofiziki i drevneishei professii?
  • Issledovanie effekta "chernoi kapli" pri prohozhdenii Merkuriya do disku Solnca iz kosmosa
  • Osnovnye dostizheniya HETE-2
  • Nablyudatel'nye proyavleniya molodyh neitronnyh zvezd: pul'sary, pitaemye vrasheniem
  • Novye pul'sary, otkrytye v skanah Aresibo
  • Dva pul'sara s magnitarnymi polyami


    Iz razdela physics

  • Indiiskaya fizika

  • Klassicheskii i kvantovyi rezhimy sverhtekuchei turbulentnosti

  • Skorost' gravitacii v OTO


    Polnyi Arhiv predydushih vypuskov.

    Arhiv statei, voshedshih v vypuski s 01 iyulya 2002 g. po 31 marta 2003 g.

    Razdely arhiva (s aprelya 2003 g.):
    kosmologiya,
    neitrino,
    kosmicheskie luchi i gamma-astronomiya,
    galaktiki, AYaG, kvazary,
    nasha Galaktika,
    mezhzvezdnaya sreda,
    zvezdy,
    sverhnovye,
    ostatki sverhnovyh,
    chernye dyry,
    neitronnye zvezdy,
    linzirovanie,
    Solnce,
    ekzoplanety,
    Solnechnaya sistema,
    akkreciya,
    tesnye dvoinye sistemy,
    gamma-vspleski,
    gravitacionnye volny,
    mehanizmy izlucheniya,
    chislennoe modelirovanie,
    dinamika, mehanika
    metody obrabotki dannyh,
    MGD,
    metody nablyudenii,
    budushie nablyudatel'nye proekty,
    prochee.


    Poleznye astronomicheskie ssylki.
    Korotkoe esse ob elektronnyh preprintah.
    Obzornye stat'i v astro-ph s 2001 g.
  • Obzory preprintov astro-ph

    Vypusk N58
    astro-ph za 01 - 17 oktyabrya 2003 goda: izbrannye stat'i



    Referaty otdel'nyh statei


    obzor astro-ph/0310003 Modelirovanie konvekcii v yadrah A-zvezd: differencial'noe vrashenie i overshuting (Simulations of core convection in rotating A-type stars: Differential rotation and overshooting)
    Authors: Matthew Browning et al.
    Comments: 48 pages, 16 figures, Accepted to ApJ. http://lcd-www.colorado.edu/~brownim/core_convectsep24.pdf

    Nazvanie etoi raboty polnost'yu opisyvaet to, chto v nei bylo sdelano. Odnako nado dat' nekotorye poyasneniya:

    • Zvezdy tipa A neskol'ko bolee massivnye, chem Solnce, i obladayut konvektivnymi yadrami.
    • Vse raschety velis' dlya zvezd s massoi 2Mo, no dlya raznyh skorostei ih vrasheniya.
    • Raschety velis' s pomosh'yu trehmernogo koda, poskol'ku polnocennoe modelirovanie konvekcii mozhno provesti tol'ko v treh izmereniyah.
    • Yadra malomassivnyh zvezd (v tom chisle i Solnca) vrashayutsya zametno bystree, chem ih poverhnostnye sloi.
    • Overshuting (overshooting) - yavlenie, kogda konvektivnye yacheiki "po inercii" pronikayut v oblasti (vyshe ili nizhe konvektivnogo sloya), kotorye uzhe yavlyayutsya konvektivno ustoichivymi.

    Poluchennye pri modelirovanii karty radial'nyh skorostei (Vr) i sootvetstvuyushih temperatur (T) dlya dvuh glubin (0.10 i 0.16 radiusa zvezdy) dlya dvuh modelei.

    Vyvody avtora takovy:

    1. Vnutri konvektivnyh yader nablyudaetsya zametnaya differencial'nost' vrasheniya.
    2. Raschety pokazyvayut zametnyi overshutring.
    3. Vo vneshnei radiativnoi obolochke zvezdy okazyvayutsya neustoichivymi i dostigayut bol'shih amplitud vozmusheniya, porozhdaemye vihryami i gravitacionnymi volnami v konvektivnom yadre.


    miniobzor astro-ph/0310015 Nablyudatel'nye i fizicheskie svoistva sverhnovyh tipa II s plato (Observed and physical properties of type II plateau supernovae)
    Authors: Mario Hamuy
    Comments: 8 pages, 4 figures.

    Sverhnovye tipa II-P imeyut na krivoi bleska vskore posle maksimuma dostatochno prodolzhitel'nyi uchastok s medlennym spadaniem svetimosti - "plato". V dannoi rabote issledovany 24 takih sverhnovyh. Mnogie iz parametrov etih sverhnovyh menyayutsya v shirokih predelah: svetimost' na plato i na posleduyushem spade, skorost' rasshireniya obolochki, nachal'nyi radius zvezdy, energiya vzryva, sbroshennaya massa obolochki i 56Ni. Nesmotrya na etot razbros nablyudayutsya opredelennye svoistva i zavisimosti parametrov:

    1. Vse parametry menyayutsya nepreryvno (vnutri nekotoryh intervalov znachenii).
    2. V pervom priblizhenii vse eti zavisimosti mozhno opisat' kak odnoparametricheskoe semeistvo.
    3. Rol' osnovnogo parametra igraet massa predsverhnovoi.


    Ochen' blizkim temam posvyasheny eshe dve stat'i:

    astro-ph/0310056 A.Pastorello et al. Nablyudatel'nye svoistva sverhnovyh tipa II s plato (Observational Properties of Type II Plateau Supernovae)

    astro-ph/0310057 L.Zampieri et al. Nashe ponimanie sverhnovyh vtorogo tipa (Understanding Type II Supernovae)

    Tochki - nablyudatel'nye krivye bleska sverhnovyh iz raboty astro-ph/0310056. Raznym cvetom pokazany sil'nye, slabye i promezhutochnye sverhnovye. Sinyaya liniya - SN 1987a.


    astro-ph/0310016 Proekt DIRECT (The DIRECT Project)
    Authors: Lucas Macri
    Comments: Invited talk (6 pages, 5 figures). http://cfa-www.harvard.edu/~kstanek/DIRECT/macri_iau193.ps.gz

    Osnovnoi cel'yu proekta DIRECT bylo izmerenie pryamymi metodami rasstoyaniya do nashih "blizhaishih sosedei" - galaktik M31 (tumannosti Andromedy) i M33. Izmereniya osnovyvalis' na nablyudeniyah razdelennyh zatmennyh dvoinyh i na cefeidah. Proekt byl nachat v 1996 godu. Za eto vremya po programme proekta bylo provedeno bolee 200 nochei nablyudenii na malyh (1.2-1.3 metrovyh) teleskopah. Dopolnitel'no byl proveden ryad nablyudenii v IK-diapazone na 8.1 metrovom teleskope Gemini. Proekt eshe dalek ot zaversheniya - v stat'e obsuzhdayutsya tol'ko promezhutochnye rezul'taty.

    Krivye bleska Cefeid v M33 (verhnii grafik) i zatmennyh dvoinyh v M33 (nizhnie krivye).


    astro-ph/0310028 Magnitnye polya i kosmicheskie luchi v potokah s ohlazhdeniem (Magnetic fields and cosmic rays in cooling flows)
    Authors: Torsten Ensslin et al.
    Comments: 7 pages, 11 figures

    Cooling flows (potoki s ohlazhdeniem) nablyudayutsya v skopleniyah galaktik. Goryachii (ochen' goryachii) raz v skopleniyah slabo izluchaet i ostyvaet ochen' medlenno. Odnako, esli ego temperatura opuskaetsya nizhe nekotorogo urovnya, ego izluchatel'naya sposobnost' bystro rastet (s ponizheniem temperatury), ohlazhdenie gaza usilivaetsya, ego davlenie padaet, plotnost' rastet (ego szhimayut vse eshe goryachie okruzhayushie sloi) i on nachinaet padat' k centu skopleniya galaktik. Svoe nazvanie takie potoki veshestva poluchili iz-za togo, chto v centre skopleniya ih temperatura nizhe, chem na periferii.

    Vse opisannoe vyshe - predislovie k dannoi stat'e (prakticheski v nei ne rassmatrivaemoe). Tema dannoi stat'i - magnitnye polya i energichnye chasticy (kosmicheskie luchi) v potokah ohlazhdeniya. Ih rol' tam dostatochno velika, a fizicheskie usloviya pozvolyayut effektivno izuchat' svoistva etih komponent mezhzvezdnoi (i mezhgalakticheskoi) sredy.

    Stat'ya ochen' ponyatno napisana i prekrasno proillyustrirovana.

    Geometriya izmereniya magnitnyh polei v skoplenii galaktik po Faradeevskomu vrasheniyu ploskosti polyarizacii izlucheniya.


    miniobzor astro-ph/0310030 Modeli Solnca i solnechnye neitrino (Solar Models and Solar Neutrinos)
    Authors: John N. Bahcall
    Comments: 18 pages, 6 figures.

    Neitrino ot Solnca nablyudayutsya uzhe v techenie 40 let. I pochti vse eto vremya s peremennym uspehom shla "bor'ba" mezhdu teoreticheskimi modelyami Solnca i dannymi poluchennymi v eksperimentah. Osnovnoe protivorechie svodilos' k tomu, chto na Zemlyu prihodit primerno na 1/3 men'shii potok neitrino, chem nado. Snachala eto nesootvetstvie schitalos' nedostatkom modelei Solnca, zatem - eksperimentov po registracii neitrino, a posle togo, kak eksperimenty stali dostatochno tochnymi - teorii neitrinnyh processov. Bitva zavershilas' god nazad - posle eksperimental'nogo dokazatel'stva sushestvovaniya oscillyacii neitrino.

    Gorazdo bolee podrobnyi - v licah i detalyah - rasskaz by naidete v obzore klassika sovremennoi astrofiziki Dzhona Bakkala.


    "fotogalereya" astro-ph/0310031 Morfogenez zvezdnyh potokov v prilozhenii k planetarnym tumannostyam (On the morphogenesis of stellar flows - Application to planetary nebulae)
    Authors: Daniel da Rocha, Laurent Nottale
    Comments: 12 pages, 78 small figures

    Planetarnaya tumannost' obrazuetsya na poslednih stadiyah evolyucii zvezd promezhutochnyh mass, kogda oni sbrasyvayut ostatki svoei obolochki i ogolyayut yadro - goryachii belyi karlik. Kakuyu formu mozhet imet' planetarnaya tumannost'? Eto opredelyaetsya geometriei istekayushego potoka: on mozhet byt' sfericheski-simmetrichnym, diskoobraznym, imet' vid pary protivopolozhno napravlennyh konusov (shirokih, srednih ili uzkih) ili dzhetov. Vozmozhno, takzhe, sochetanie razlichnyh tipov istecheniya. Krome togo vid tumannosti na nebe zavisit ot togo s "kakoi storony" my na nee smotrim.

    Klassifikaciya form planetarnyh tumannostei


    Eshe odna blizkaya po teme stat'ya: astro-ph/0310269
    Hans-Reinhard Muller et al. Vliyanie mezhzvezdnoi sredy na formu planetarnyh tumannostei (Influence of the Interstellar Medium on the Shaping of Planetary Nebulae).


    astro-ph/0310040 Elektromagnitnaya model' gamma-vspleska [protiv modeli faerbola] (Electromagnetic [versus fireball] model of GRBs)
    Authors: Maxim Lyutikov (McGill University)
    Comments: 5 pages, 4 figures

    Korotkie i yasnye stat'i Maksima Lyutikova vsegda ochen' interesno chitat'. V etot raz ideei stat'i yavlyaetsya utverzhdenie, svyazannoe s nedavno otkrytym vysokim (neskol'ko desyatkov procentov) urovnem polyarizacii izlucheniya odnogo iz gamma-vspleskov (samogo vspleska, a ne ego oreola - poslesvecheniya). Avtor pokazyvaet, chto pri urovne polyarizacii >10% model' faerbola s vnutrennei udarnoi volnoi mozhno isklyuchit', a elektromagnitnaya model' gamma-vspleska pozvolyaet ob'yasnit' nablyudaemuyu polyarizaciyu izlucheniya.

    Shema elektromagnitnoi modeli gamma-vspleska

    Otmetim, odnako, chto v svoei nedavnei stat'e Ratledzh i Foks osparivayut vysokuyu polyarizaciyu dlya vspleska GRB 021206.


    astro-ph/0310043 Dve novyh tesnyh dvoinyh v planetarnyh tumannostyah yuzhnogo polushariya (Two New Close Binary Central Stars of Planetary Nebulae from a Critically Selected Southern Hemisphere Sample)
    Authors: Todd C. Hillwig
    Comments: 4 pages, 4 figures

    U dvuh planetarnyh tumannostei na yuzhnom nebe - NGC 6026 i NGC 6337 - po rezul'tatam dlitel'noi i tochnoi fotometrii obnaruzhena periodichnost': 0.26 i 0.17 dnya, sootvetstvenno. Nalichie takoi peremennosti, velichina i postoyanstvo perioda yavlyayutsya pryamymi ukazaniyami na to, chto yadra etih tumannostei - tesnye dvoinye sistemy, sostoyashie iz belyh karlikov.


    astro-ph/0310045 Para dvoinyh radiogalaktik - ostatki sliyaniya dvoinyh sverhmassivnyh chernyh dyr (Double-double radio galaxies: remnants of merger of supermassive binary black holes)
    Authors: F.K. Liu et al.
    Comments: 6 pages, 2 figures, MNRAS, 340 (2003) 411

    Iz centrov radiogalaktik v protivopolozhnyh napravleniya vybrasyvayutsya dva puchka relyativistskih chastic, kotorye na nekotorom rasstoyanii ot galaktiki tormozyatsya i obrazuyut vidimye v radiodiapazone "radioushi". Odna iz teorii polagaet, chto podobnaya aktivnost' yavlyaetsya rezul'tatom sliyaniya v centre galaktiki dvuh sverhmassivnyh chernyh dyr neravnoi massy. V dannoi stat'e podrobno rassmotren sluchai galaktiki s kotoroi svyazan radioistochnik B1834+620.


    astro-ph/0310048 Habblovskii potok na ochen' malyh rasstoyaniyah: komp'yuternoe modelirovanie dinamicheskoi istorii (The very local Hubble flow: computer simulations of dynamical history)
    Authors: A.D.Chernin et al.
    Comments: 10 pages, 4 figures, accepted in A&A

    Habbl podtverdil svoi zakon razbeganiya galaktik po nablyudeniyam blizkih ob'ektov mestnoi gruppy galaktik (r<3 Mpk). Pozzhe, kogda byli izmereny rasstoyaniya i krasnye smesheniya gorazdo bolee dalekih galaktik, vyyasnilos', chto eto podtverzhdenie bylo sluchainym: pekulyarnye skorosti blizkih k nam galaktik namnogo prevyshayut skorosti sistematicheskogo Habblovskogo udaleniya. Takim obrazom, obnaruzhennaya Habblom zavisimost' na malyh rasstoyaniya otrazhaet ne obshee rasshirenie Vselennoi, a strukturu mestnogo potoka galaktik.

    V dannoi rabote provedeno modelirovanii dvizhenii galaktik mestnoi gruppy i pokazano, chto v proshlom "postoyannaya Habbla"opredelennaya po etim galaktikam byla by sushestvenno bol'she ee istinnogo znacheniya.

    Otnoshenie skorosti k rasstoyaniyu ("postoyannaya Habbla") dlya nekotoryh galaktik mestnoi gruppy v proshlom


    astro-ph/0310064 Teleskopy s vrashayushimsya ob'ektivom (Telescopic system with a rotating objective element)
    Authors: G. Chadzitaskos, J. Tolar
    Comments: 6 pages, 2 figures

    Chuvstvitel'nost' teleskopa opredelyaetsya ploshad'yu zerkala (ili antenny), a razreshenie - ego lineinymi razmerami. Situaciya, kogda ploshadi kruglogo zerkala dostatochno dlya nablyudeniya kakogo-libo ob'ekta, a razresheniya ne hvataet, vstrechaetsya dostatochno chasto. Eta problema reshaetsya s pomosh'yu postroeniya interferometrov ili (v radiodiapazone) metodom sinteza apertur.

    V dannoi zametke predlozhen drugoi metod: zerkalo opticheskogo teleskopa delaetsya vytyanutym v odnom napravlenii i vrashaetsya vokrug osei opticheskoi osi.

    Primer asimmetrichnogo zerkala

    Za odin oborot zerkala delaetsya posledovatel'nost' snimkov pri raznyh ego polozheniyah. Izobrazheniya zapisyvayutsya v komp'yuter, a zatem iz nih stroitsya edinoe izobrazhenie, sootvetstvuyushee kruglomu zerkalu s diametrom, ravnym naibol'shemu iz razmerov vrashayushegosya elementa. Algoritmy sozdaniya podobnogo izobrazheniya na segodnyashnii den' horosho izvestny. A glavnoe, takoi teleskop budet men'she vesit' i men'she stoit'.


    miniobzor astro-ph/0310070 Relyativistskii kollaps vrashayushihsya sverhmassivnyh zvezd v sverhmassivnye chernye dyry (Relativistic Collapse of Rotating Supermassive Stars to Supermassive Black Holes)
    Authors: Stuart L. Shapiro
    Comments: 11 pages, 6 figures

    V principe zvezdy mogut imet' ochen' bol'shuyu massu - do milliona mass Solnca i vyshe. Davlenie v etih zvezdah opredelyaetsya izlucheniem, ih vremya zhizni perestaet zaviset' ot massy i sostavlyaet okolo milliona let. Takie zvezdy ne sovsem ustoichivy: oni pul'siruyut, intensivno teryayut veshestvo v vide vetra, no za vremya zhizni zvezdy ee massa umen'shaetsya neznachitel'no. Zhizn' podobnoi sverhmassivnoi zvezdy zakanchivaetsya ee kollapsom i obrazovaniem sverhmassivnoi chernoi dyry. Takie idei byli populyarny vo vtoroi polovine 60-h godov (togda sverhmassivnye zvezdy nazyvali "magnitarami"). Sverhmassivnymi zvezdami togda pytalis' ob'yasnit' fenomen kvazarov.

    Segodnya, s obnaruzheniem v centrah galaktik (dazhe na bol'shih z) bol'shogo chisla sverhmassivnyh chernyh dyr, interes k sverhmassivnym zvezdam vozrodilsya snova. O rezul'tatah modelirovaniya sverhmassivnyh zvezd i ih kollapsa v ramkah obshei teorii otnositel'nosti rasskazyvaet Styuart Shapiro.


    astro-ph/0310084 Registraciya planet, "prohodyashih po diskam zvezd", s promezhutochnymi periodami s pomosh'yu seti malyh teleskopov - transitsearch.org (Detection of Intermediate-Period Transiting Planets with a Network of Small Telescopes: transitsearch.org)
    Authors: S.Seagroves et al.
    Comments: 11 pages, 3 figures, 1 table; accepted for the December PASP

    Dlya obnaruzheniya planet-gigantov pri ih prohozhdenii po diskam zvezd trebuetsya fotometriya s otnositel'noi tochnost'yu ~1%. Na eto sposobny malye i dazhe lyubitel'skie teleskopy. Zato zhelatel'no vklyuchit' v etu programmu kak mozhno bol'shee chislo instrumentov, raspolozhennyh v razlichnyh tochkah Zemli. Takaya set' smozhet dostatochno effektivno obnaruzhivat' planety s orbital'nymi periodami ot 10 do 200 dnei u yarkih (V<11m) zvezd. Podrobnosti na saite transitsearch.org.


    astro-ph/0310097 Elliptichnost' diskov v spiral'nyh galaktikah (The Ellipticity of the Disks of Spiral Galaxies)
    Authors: Barbara S. Ryden (Ohio State)
    Comments: 19 pages, 5 figures; ApJ, accepted

    Formu diska spiral'noi galaktiki obychno opisyvayut kak splyusnutyi sferoid. No eto ne sovsem verno - na samom dele galaktiki yavlyayutsya trehosnymi ellipsoidami, u kotoryh dve osi (a i b v ploskosti diska) pochti ravny drug drugu, a tret'ya (c) - sushestvenno men'she. Po 12767 galaktikam Sloanovskogo cifrovogo obzora dlya raspredeleniya osei galaktik polucheny sleduyushie velichiny:

    ln epsilon = -1.85 +/- 0.89
    <c/a> = 0.222 +/- 0.057

    (epsilon = 1-b/a).


    astro-ph/0310120 Kometnaya panspermiya mozhet ob'yasnit' krasnye dozhdi v Kerale (Cometary panspermia explains the red rain of Kerala)
    Authors: G.Louis and A.Santhosh Kumar
    Comments: 20 pages, 5 figures, submitted to Nature

    Krasnye dozhdi shli v shtate Kerala v Indii s iyulya po sentyabr' 2001 goda. Dozhdevaya voda soderzhala bol'shoe kolichestvo mikroorganizmov, kotorye i ob'yasnyali ee okrasku. Etim dozhdyam predshestvovalo padenie krupnogo bolida. Avtory rassmatrivayut vozmozhnost' ob'yasneniya fenomena dozhdei padeniem i raspadom v zemnoi atmosfere nebol'shoi komety. V etom sluchae mikroorganizmy mogli by imet' vnezemnuyu prirodu.

    Mesta, gde nablyudalis' krasnye dozhdi
    Krasnaya dozhdevaya voda i mikroorganizmy pri uvelichenii v 400 i v 1000 raz. Razmery mikroorganizmov ot 4 do 12 mikron, cherta na foto imeet dlinu 10 mikron.

    Stat'ya budet napravlena v zhurnal Nature.


    astro-ph/0310121 Apsidal'naya korotaciya pri rezonanse srednih dvizhenii: na primere planetnoi sistemy 55 Cancri (The apsidal corotation in mean motion resonance: 55 Cancri as an example)
    Authors: Li-Yong Zhou et al.
    Comments: 8 pages, 8 figures

    Dve vnutrennie planety zvezdy 55 Cancri obrashayutsya v rezonanse 3:1 (po srednemu dvizheniyu). Poskol'ku orbity etih planet dostatochno ellipticheskie, to dinamiku takogo rezonansa prishlos' rassmatrivat' v obshem sluchae (a ne dlya krugovyh orbit, kak v Solnechnoi sisteme). V etoi situacii v podobnoi sisteme vozmozhno neskol'ko tipov ustoichivogo rezonansnogo dvizheniya.


    astro-ph/0310130 Status neitrinnogo proekta ANTARES (The ANTARES neutrino project: status report)
    Authors: I.Sokalski (INFN/Bari), for the ANTARES Collaboration
    Comments: 7 pages, 4 figures

    ANTARES - podvodnyi neitrinnyi cherenkovskii teleskop, stroyashiisya v Sredizemnom more. Po principam funkcionirovaniya on pohozh na ustanovku, rabotayushuyu v ozere Baikal. V nastoyashee vremya na glubine 2500 m ustanovlen prototip odnoi "struny" s detektorami. Okonchatel'nyi variant iz 12 "strun" s 75 fotodetektorami na kazhdoi budet zavershen k koncu 2006 goda.

    Podvodnyi neitrinnyi teleskop ANTARES


    miniobzor astro-ph/0310133 Fizika neitrino i kosmologiya (Neutrino physics from cosmology)
    Authors: Steen Hannestad (Univ. Southern Denmark)
    Comments: 15 pages, 5 figures

    Kosmologicheskie nablyudeniya poslednih neskol'kih let (v pervuyu ochered' prodolzhayushiisya eksperiment WMAP) dayut ser'eznye ogranicheniya na parametry neitrino: v pervuyu ochered' na chislo legkih neitrino i na ih massy (v zavisimosti ot chisla).


    astro-ph/0310142 Magnitovrashatel'nyi mehanizm vzryva sverhnovoi vtorogo tipa (Magnetorotational mechanism of supernova type II exlosion)
    Authors: S.G.Moiseenko, G.S.Bisnovatyi-Kogan, N.V.Ardeljan
    Comments: 5 pages, 4 figures.

    Ocherednaya rabota gruppy uchenyh iz IKI, posledovatel'no izuchayushih magnitovrashatel'nyi mehanizm vzryva sverhnovyh. V etom mehanizme istochnikom energii sluzhit kineticheskaya energiya bystro vrashayusheisya neitronnoi zvezdy, ona peredaetsya sbrasyvaemoi obolochke cherez magnitnoe pole. V postroennoi v rabote modeli energiya vzryva sostavlyaet 1.12x1051 erg, sbrasyvaetsya 0.11 massy Solnca.


    miniobzor astro-ph/0310143 Populyacii zvezd vnutri skoplenii galaktik (Intracluster Stellar Population)
    Authors: Magda Arnaboldi
    Comments: 10 pages, 5 figures

    V poslednee vremya poyavilsya interes k vnegalakticheskim (t.e. ne prinadlezhashim ni odnoi galaktike) zvezdam v skopleniyah galaktik. Takie zvezdy mogli byt' vybrosheny pri blizkih proletah ili obrazovat'sya vne galaktik iz vybroshennogo ih nih gaza. Odna iz idei, vyskazannyh v etom obzore, - iskat' ne sami zvezdy, a gorazdo bolee yarkie planetarnye tumannosti, voznikayushie na konechnyh stadiyah ih evolyucii.


    astro-ph/0310152 IceCube-Plus: teleskop dlya neitrino sverhvysokih energii (IceCube-Plus: An Ultra-High Energy Neutrino Telescope)
    Authors: Francis Halzen and Dan Hooper
    Comments: 9 pages, 3 figures

    Cherenkovskii neitrinnyi detektor IceCube ob'emom 1 km3 v nastoyashee vremya stroitsya v Antarktide. On smozhet registrirovat' neitrino s energiyami do 10-100 Gev. Statusu etogo proekta posvyashena chast' dannoi stat'i. No bOl'shaya ee chast' - o tom, chto novye bolee krupnye fotopriemniki pozvolyat registrirovat' na etoi ustanovke neitrino sverhvysokih energii, do 10 Pev. Imenno takaya ustanovka nosit nazvanie IceCube-Plus.


    astro-ph/0310201 Temp rozhdeniya pul'sarov po Parksovskomu obzoru (Pulsar Birthrate from Parkes Multi-beam Survey)
    Authors: N.Vranesevic et al.
    Comments:

    V obzore, osnovannom na nablyudenii bolee 800 pul'sarov, issledovalsya ne tol'ko obshii temp ih rozhdeniya, no i raspredelenie molodyh pul'sarov po magnitnym polya. Polucheny sleduyushie rezul'taty (dlya noveishei modeli rasstoyanii do pul'sarov Cordes & Lazio (2002)):

    Pole
    (log B)
     Interval mezhdu rozhd. 
    (let)
    Chislo v Galaktike

    >12.530-7017000
    12.0-12.550-11080000
    <12.090-250563000

    To est' primerno polovina pul'sarov rozhdaetsya s polyami bol'she 3x1012 Gs, no v Galaktike ih nablyudaetsya nemnogo, tak kak oni bystro tormozyatsya i vyklyuchayutsya.


    obzor astro-ph/0310209 Set' Peremennyh Zvezd: mirovoi centr astronomii tranzientnyh ob'ektov i peremennyh zvezd (Variable Star Network: World Center for Transient Object Astronomy and Variable Stars)
    Authors: T.Kato et al.
    Comments: 57 pages, 21 figures, appear in PASJ

    Nablyudenie peremennyh zvezd - zadacha dlya obshirnoi seti malyh i ochen' malyh teleskopov. Eto odna iz vazhnyh zadach, kotoraya po plechu lyubitel'skoi astronomii. Ochen' vazhnoi chast'yu takoi seti dolzhen stat' centr dannyh i informacii, kotoryi ob'edinit nablyudatel'nuyu sistemu v edinoe celoe. Proobrazom takogo centra mozhet stat' yaponskaya Set' Peremennyh Zvezd (Variable Star Network =VSNET), ob'edinyayushaya nablyudatelei peremennyh zvezd, v tom chisle i lyubitelei. Massu podrobnostei vy naidete v obzore ili na saite VSNET http://www.kusastro.kyoto-u.ac.jp/vsnet/.


    astro-ph/0310210 Chastota vspyshek infrakrasnyh sverhnovyh (The Infrared Supernova Rate)
    Authors: F.Mannucci et al.
    Comments: 5 pages

    My mozhem ne zametit' vspyshku sverhnovoi v optike, esli ona otgorozhena ot nas plotnym sloem pyli, kotoraya pogloshaet izluchenie Sverhnovoi. V infrakrasnom diapazone (dazhe v blizhnem) etogo uzhe ne proishodit. V zametke obsuzhdaetsya uspeshnost' takogo podhoda i vozmozhnye budushie proekty, celikom orientirovannye na poisk i nablyudenie sverhnovyh v infrakrasnom diapazone.


    obzor astro-ph/0310218 Prilivnaya dissipaciya vo vrashayushihsya planetah-gigantah (Tidal dissipation in rotating giant planets)
    Authors: G.I.Ogilvie, D.N.C.Lin
    Comments: 74 pages, 12 figures, subm. ApJ

    Rech' idet o planetah-gigantah v Solnechnoi sisteme. Okazyvaetsya ochen' mnogo informacii o nih, v chastnosti o ih vnutrennem stroenii, mozhno poluchit' izuchaya prilivy, kotorye vyzyvayut na etih planetah ih naibolee massivnye sputniki.

    V dannom obzore vy naidete vse: teoriyu staticheskih i dinamicheskih prilivov (prilivnyh oscillyacii), rezul'taty chislennogo modelirovaniya i, konechno, prilozhenie k ekzoplanetam.

    Rezul'tat modelirovaniya prilivnogo otklika tverdotel'no vrashayusheisya planety.


    astro-ph/0310224 Akkreciya na bystrye rentgenovskie pul'sary (Accretion Onto Fast X-Ray Pulsars)
    Authors: S.A.Rappaport et al.
    Comments: 10 pages, 5 figures, submitted to ApJ

    V poslednie desyat' let byli otkryty akkreciruyushie rentgenovskie pul'sary s millisekundnymi periodami. V standartnoi modeli akkrecii voznikayut nekotorye problemy s ob'yasneniem nablyudaemyh svoistv etih ob'ektov. Naprimer, s ob'yasneniem togo, chto temp akkrecii u nih razlichaetsya pochti na dva poryadka velichiny, ili chto eti ob'ekty demonstriruyut ochen' vysokie tempy tormozheniya.

    Dlya ob'yasneniya nablyudaemyh yavlenii avtory predlagayut modificirovannuyu model' diska u kotorogo vneshnyaya granica raspolozhena na radiuse korotacii. Razmer takogo diska zavisit ot perioda vrasheniya neitronnoi zvezdy.


    astro-ph/0310253 Dodekaedral'naya topologiya Vselennoi, kak ob'yasnenie temperaturnyh korrelyacii reliktovogo fona na bol'shih uglovyh masshtabah (Dodecahedral space topology as an explanation for weak wide-angle temperature correlations in the cosmic microwave background)
    Authors: J.-P. Luminet et al.
    Comments: 10 pages, 4 figures, Nature 425, p. 593, 2003

    Kraine interesnaya stat'ya: nasha Vselennaya mozhet imet' netrivial'nuyu topologiyu. V etom sluchae odni i te zhe ee oblasti my nablyudaem v neskol'kih mestah na nebe, chto i ob'yasnyaet krupnomasshtabnye korrelyacii temperatury reliktovogo fona. No ob etom nado pisat' gorazdo podrobnee.


    A vot eta stat'ya utverzhdaet, chto bol'shinstvo topologicheski netrivial'nyh modelei mozhet byt' otbrosheno, po krainei mere dlya topologicheskih shkal men'shih 24 Gpk.
    astro-ph/0310233 Neil J. Cornish et al. Ogranicheniya na topologiyu Vselennoi (Constraining the Topology of the Universe)


    astro-ph/0310267 Kosmologicheskaya evolyuciya mass chernyh dyr v kvazarah (The cosmological evolution of quasar black-hole masses)
    Authors: R.J.McLure, J.S. Dunlop
    Comments: 15 pages, 10 figures, submitted to MNRAS

    Po dannym Sloanovskogo cifrovogo obzora neba polucheny virial'nye ocenki mass chernyh dyr bolee chem v 12000(!) kvazarov s 0.1<z<2.1. Eti massy lezhat v intervale ot 107Mo do 3x109Mo, t.e. ne prevyshayut massy samyh bol'shih chernyh dyr, nablyudaemyh v centrah galaktik. Bolee togo, bolometricheskaya svetimost' kvazarov ne prevoshodit eddingtonovskii predel, sootvetstvuyushii ocenkam mass nahodyashihsya v nih chernyh dyr.

    Otdel'noe issledovanie vyborki kvazarov s 1.9<z<2.1 pokazalo, chto bol'shinstvo chernyh dyr s M>3x108Mo sushestvovalo uzhe togda.

    Raspredelenie 1069 kvazarov c 1.9<z<2.1 po absolyutnoi zvezdnoi velichine. Chernaya gistogramma pokazyvaet analogichnoe raspredelenie podmnozhestva kvazarov, ch'ya massa prevyshaet ukazannyi na risunke porog.


    obzor astro-ph/0310280 Evolyuciya uglovogo momenta zvezd s massami 0.1-10Mo ot rozhdeniya do glavnoi posledovatel'nosti (The Angular Momentum Evolution of 0.1-10 Msun Stars From the Birthline to the Main Sequence)
    Authors: S.C. Wolff et al.
    Comments: to appear in ApJ

    Stat'ya - rezul'tat obrabotki dannyh o proekciyah na luch zreniya ekvatorial'nyh skorostei vrasheniya (v sini) dlya 145 zvezd s massami ot 0.4 do 14Mo iz kompleksa zvezdoobrazovaniya v Orione (srednyaya massa zvezdy v vyborke - 2.1Mo, t.k. malomassivnyh zvezd bol'she). Nablyudatel'nye dannye byli dopolneny opublikovannymi rezul'tatami dlya zvezd s massami ot 0.5 do 0.1Mo.

    Dlya dannoi vyborki zvezd udel'nyi uglovoi moment (na edinicu massy) rastet kak M0.25. Nalichie edinoi zavisimosti na intervale v dva poryadka velichiny po masse, ukazyvaet na edinyi mehanizm obrazovaniya etih zvezd i poteri imi uglovogo momenta. (Obsuzhdeniyu voprosa o tom kakie imenno mehanizmy poteri momenta deistvuyut i na kakih etapah obrazovaniya zvezd posvyashena zametnaya chast' dannoi raboty.)

    Zvezdy nablyudatel'noi vyborki na diagramme Gercshprunga-Rassela. Razmer kruzhka proporcionalen skorosti vrasheniya zvezdy (v sini). Chernye kruzhki sootvetstvuyut zvezdam s infrakrasnymi izbytkami, t.e. okruzhennyh protozvezdnymi diskami. Krupnyi punktir - liniya rozhdeniya zvezd pri tempe akkrecii iz protozvezdnogo oblaka 10-5 Mo/god. Melkii punktir - teoreticheskie evolyucionnye treki zvezd. Sploshnye linii - izohrony dlya vozrastov 105-108 let. Na dannoi diagramme protozvezdy dvizhutsya po trekam vniz i vlevo, priblizhayas' k glavnoi posledovatel'nosti.


    Eshe odna blizkaya po teme stat'ya: astro-ph/0310360
    M.J.Goupil et al. Poluchenie informacii o vrashenii zvezd iz ih pul'sacii (Inferring information about rotation from stellar oscillations).


    astro-ph/0310283 Pervye oblasti HII vo Vselennoi (The First HII Region in the Universe)
    Authors: Daniel Whalen et al.
    Comments: 9 pages, 8 figures, submitted to ApJ

    Pervymi (posle rekombinacii veshestva vo Vselennoi) moshnymi istochnikami ul'trafioletovogo izlucheniya stali massivnye zvezdy Pervogo Pokoleniya. Vokrug takih zvezd obrazovyvalis' ionizacionnye fronty, otdelyavshie oblast' veshestva ionizovannogo zvezdoi ot okruzhayushei neitral'noi sredy. Po mere udaleniya fronta ot zvezdy rezhim ego dvizheniya izmenyalsya. Raschety prodelannye avtorami pokazyvayut, chto primerno 95% ul'trafioletovogo izlucheniya pokidali okrestnosti zvezd.


    astro-ph/0310295 Ozhidaemyi svoistva radioimpul'sov ot padeniya na Lunu potokov EeV neitrino (Expected properties of radio pulses from lunar EeV neutrino showers)
    Authors: A. R. Beresnyak
    Comments: 10 pages, 6 figures

    Radiovolny s chastotami poryadka 100 MGc-1 GGc mogut na neskol'ko metrov pronikat' vglub' poverhnosti Luny ili, naoborot, vyhodit' naruzhu, preodolevaya neskol'ko metrov lunnogo regolita. Na etom svoistve lunnogo grunta osnovan metod registracii neitrino sverhvysokih energii (~1018-1020 eV). Nebol'shaya dolya puchka sverhenergichnyh neitrino rasseivaetsya na elektronah lunnogo grunta, elektrony nachinayut dvigat'sya s relyativistskimi skorostyami, kotorye prevyshayut skorost' sveta v regolite i ispuskayut Cherenkovskoe izluchenie. Gigagercovye radiovolny, dlya kotoryh lunnyi grunt dostatochno prozrachen, vyhodyat naruzhu i mogut byt' zaregistrirovany nazemnymi radioteleskopami. V dannoi stat'e privedeny raschety vremennyh i uglovyh profilei izlucheniya, porozhdaemogo na poverhnosti Luny impul'som neitrino sverhvysokih energii.


    astro-ph/0310311 Puzyri i sverhpuzyri (Bubbles and Superbubbles)
    Authors: Y.-H. Chu et al.
    Comments: 8 page, 5 figures

    Odinochnaya massivnaya zvezda svoim zhestkim izlucheniem i vetrom porozhdaet vokrug sebya puzyr' (bubble) v mezhzvezdnoi srede, gruppa massivnyh zvezd sozdaet sverhpuzyr' (superbubble). V nastoyashee vremya est' ryad voprosov, kotorye bol'she vsego interesuyut uchenyh, zanimayushihsya dannoi problemoi:

    1. Pochemu vokrug nekotoryh O-zvezd net puzyrei?
    2. Naskol'ko goryach puzyr' iznutri?
    3. Chto proishodit na granice puzyrya, gde soprikasayutsya goryachii i holodnyi gaz?

    Sleva - rentgenovskoe izobrazhenie puzyrya S308, poluchennoe na sputnike XMM-N'yuton, sprava - ego izobrazhenie v linii [OIII] 5007A. Central'naya zvezda puzyrya HD50896 otmechena krestom (v levom nizhnem uglu izobrazhenii).


    astro-ph/0310320 Priroda GRB980425 i poisk neosevyh effektov v blizkih sverhnovyh tipa Ib/c (The nature of GRB980425 and the search for off-axis GRB signatures in nearby type Ib/c supernovae emission)
    Authors: E. Waxman
    Comments: 13 pages, 1 figure

    Po suti seichas net sovsem uzh standartnoi modeli gamma-vspleska. Est' neskol'ko bolee-menee obsheprinyatyh momentov, kotorye pytayutsya proverit' i po vozmozhnosti uvyazat' drug s drugom. Naprimer, dovol'no aktivno obsuzhdaetsya vozmozhnaya svyaz' gamma-vspleskov so sverhnovymi tipa Ib/c.

    V dannoi gruppe modelei gamma-vsplesk svyazan s dzhetom, voznikayushem pri kollapse massivnoi zvezdy v chernuyu dyru. Vazhnym parametrom, kotoryi v principe mozhno opredelyat' iz nablyudenii, yavlyaetsya ugol, pod kotorym my vidim dzhet. Modeli dayut raznoobraznye predskazaniya, naprimer, kasatel'no registracii radioizlucheniya.

    Dlya GRB980425 predskazyvalis' parametry radioizlucheniya, kotorye zatem ne byli obnaruzheny. Eto yavlyaetsya dlya mnogih argumentom protiv dannoi gruppy modelei. Avtor pokazyvaet, kak mozhno modificirovat' model' (tochnee, sledat' ee bolee obshei), chtoby udovletvorit' imeyushimsya nablyudeniyam. Klyuchevym okazyvayutsya parametry zvzdnogo vetra vzorvavsheisya zvezdy. Sootvetstvenno delayutsya novye predskazaniya otnositel'no dolgovremennogo (gody) povedeniya radioizlucheniya.


    astro-ph/0310338 Neozhidanno bol'shie fluktuacii v statistike obrazovaniya galaktik na bol'shih krasnyh smesheniyah (Unusually Large Fluctuations in the Statistics of Galaxy Formation at High Redshift)
    Authors: Rennan Barkana et al.
    Comments: 8 ApJ pages, 4 figures, submitted to ApJ

    Kak pokazano v dannoi stat'e, takie vehi v istorii obrazovaniya galaktik, kak rozhdenie pervyh zvezd ili polnaya reionizaciya mezhgalakticheskoi sredy, proishodyat v raznye momenty vremeni v raznyh oblastyah Vselennoi. Etot razbros ob'yasnyaetsya tem, chto v nekotoryh iz etih oblastei galaktik bol'she, a v nekotoryh men'she. I on pochti na poryadok velichiny prevyshaet poluchavshiesya ranee ocenki, soglasno kotorym povtornaya ionizaciya dolzhna byla prohodit' bystro.

    Podobnyi razbros momenta polnoi ionizacii veshestva v razlichnyh tochkah Vselennoi mozhet ob'yasnit' nekotorye svoistva karlikovyh galaktik, no odnovremenno vyzyvaet mnogo novyh voprosov.


    astro-ph/0310347 Otkrytie dvuh dvoinyh millisekundnyh pul'sarov v sharovom skoplenii M30 (GBT Discovery of Two Binary Millisecond Pulsars in the Globular Cluster M30)
    Authors: S.M.Ransom et al.
    Comments: 9 pages, 6 figures, submitted to ApJ

    V sharovom skoplenii M30 obnaruzheny dva dvoinyh millisekundnyi pul'sara. Eto pervye pul'sary, otkrytye v dannom skoplenii. Pul'sar PSR J2140-2310A (M30A) imeet period 11 ms, orbital'nyi period okolo 4 chasov i krugovuyu orbitu. V etoi sisteme nablyudayutsya zatmeniya pul'sara ionizovannym vetrom vtorogo kompan'ona. Pul'sar PSR J2140-23B (M30B) imeet period 13 ms i skoree vsego vysokoekscentrichnuyu orbitu (ona eshe ne opredelena). Polozhenie etogo pul'sara sovpadaet s rentgenovskim teplovym istochnikom, kotoryi v skoplenii M30 nablyudal Chandra. Nablyudeniya pul'sarov velis' na radioteleskope Green Bank na volne 20 sm.


    miniobzor astro-ph/0310361 Fizicheskie ogranicheniya na modeli gamma-vspleskov (Physical restrictions on the models of gamma-ray bursts)
    Authors: G.S. Bisnovatyi-Kogan
    Comments: 21 pages, 19 figures

    Kakie mehanizmy mogut porozhdat' gamma-vspleski? Chem vyzvany ih poslesvecheniya? Vse li gamma-vspleski imeyut kosmologicheskuyu prirodu ili chast' iz nih proishodit v nashei Galaktike? Pered vami korotkii, no ochen' kriticheskii obzor sovremennyh problem teorii gamma-vspleskov.


    astro-ph/0310368 Chto obshego u astrofiziki i drevneishei professii? (What do astrophysics and the world's oldest profession have in common?)
    Authors: Martin Lopez-Corredoira
    Comments: 23 pages (english version) + 23 pages (spanish version, submitted to Dikaiosyne).

    Eta stat'ya ne astrofizicheskaya, v nei opisyvayutsya ne novye astronomicheskie rezul'taty ili idei, a te processy, kotorye seichas proishodyat v astronomicheskom soobshestve. Perechislyu zagolovki ee razdelov: studenty; postdoki, postoyannye dolzhnosti; publikacii, recenzenty; konferencii; finansy i politika finansirovaniya; pechat', televidenie, propaganda; raspredelenie nablyudatel'nogo vremeni; razvitie/stagnaciya nauki; "neoficial'naya" nauka; otnoshenie filosofov k nauke.

    Avtora yavno ne raduyut mnogie tendencii sovremennoi astrofiziki (a takzhe i drugih nauk), no i nekotorye osnovaniya dlya optimizma u nego tozhe est'.

    Osobo otmetim, chto avtor yavlyaetsya dostatochno izvestnym deistvuyushim uchenym, i on ne imel svoei cel'yu diskreditaciyu sovremennoi astronomii. Odnako, nekotorye citaty, vyrvannye iz obshego konteksta, mogut byt' dlya etogo ispol'zovany. Sootvetstvenno, nuzhno s vnimaniem otnosit'sya k obshemu tonu stat'i, ne fiksiruyas' isklyuchitel'no na kriticheskih momentah.


    astro-ph/0310379 Issledovanie effekta "chernoi kapli" pri prohozhdenii Merkuriya do disku Solnca iz kosmosa (Space Studies of the Black-Drop Effect at a Mercury Transit)
    Authors: G. Schneider, J. M. Pasachoff, L. Golub
    Comments: 3 pages, 1 figure

    Prohozhdeniya Merkuriya i Venery po disku Solnca dostatochno redki. V XX veke bylo 15 prohozhdenii Merkuriya, v XXI budet eshe 14. Dva poslednih prohozhdeniya Merkuriya proizoshli 15 noyabrya 1999 i 7 maya 2003. V stat'e opisany nablyudeniya black-drop effekta (doslovno - effekta "chernoi kapli") pri v etih dvuh prohozhdeniyah.

    Effekt "chernoi kapli": nalichie atmosfery vyzyvaet poyavlenie chernoi peremychki, soedinyayushei limb planety s kraem Solnca v moment vtorogo kontakta.

    Nablyudeniya velis' na sputnike TRACE (Transition Region and Coronal Explorer). Sushestvovanie black-drop effekta svyazano s nalichiem na Merkurii ostatkov atmosfery.

    Nablyudatel'nye dannye: prohozhdenie Merkuriya vblizi vtorogo kontakta.

    Stendovyi doklad o dannyh nablyudeniyah (v vide odnoi bol'shoi kartinki) mozhno posmotret' zdes': http://nicmosis.as.arizona.edu:8000/POSTERS/TOM1999.jpg.


    astro-ph/0310414 Osnovnye dostizheniya HETE-2 (Highlights of the HETE-2 Mission)
    Authors: D. Q. Lamb et al.
    Comments: 12 pages, 6 figures, to appear in proc. 2nd VERITAS Symposium on TeV Astrophysics, Chicago, Illinois

    Kak izvestno, posle neudachnogo zapuska missii HETE byla sdelana ee uluchshennaya kopiya - HETE-2, kotoraya uspeshno rabotaet na orbite. V state izlagayutsya osnovnye dostizheniya etogo apparata, prednaznachennogo dlya izucheniya kosmicheskih gamma-vspleskov. Zaregistrirovano uzhe bolee 250 sobytii, prichem dlya nekotoryh udaetsya poluchit' bystruyu i tochnuyu lokalizaciyu (koordinaty), chto vazhno dlya nablyudenii v optike. Krome kosmicheskih gamma-vspleskov sputnik videl vspleski istochnikov povtoryayushihsya gamma-vspleskov i drugie yavleniya, v pervuyu ochered' t.n. rengenovskie vspyshki, o kotoryh by neodnokratno pisali. Avtory polagayut, chto rentgenovskie vspyshki - eto vneosevye gamma-vspleski (sm. vyshe komentarii k stat'e Vaksmana). Odnako, zdes' eshe predstoit mnogo proverok - daleko ne vse kollegi razdelyayut optimizm avtorov stat'i v etom voprose.


    Seriya statei po radiopul'saram

    miniobzor astro-ph/0310451 Nablyudatel'nye proyavleniya molodyh neitronnyh zvezd: pul'sary, pitaemye vrasheniem (Observational manifestations of young neutron stars: Spin-powered pulsars)
    Authors: Michael Kramer
    Comments: Invited review to appear in "Young Neutron Stars and Their Environments" (IAU Symposium 218, ASP Conference Proceedings), eds F. Camilo and B. M. Gaensler, 8 pages, 3 figures
    astro-ph/0310454 Novye pul'sary, otkrytye v skanah Aresibo (New Pulsars Discovered in Arecibo Drift-Scan Searches)
    Authors: M. A. McLaughlin et al.
    Comments: 2 pages, 1 figure. To appear in "Young Neutron Stars and Their Environments" (IAU Symposium 218, ASP Conference Proceedings), eds F. Camilo and B. M. Gaensler
    astro-ph/0310455 Dva pul'sara s magnitarnymi polyami (Two Radio Pulsars with Magnetar Fields)
    Authors: M. A. McLaughlin et al.
    Comments: 2 pages. To appear in "Young Neutron Stars and Their Environments" (IAU Symposium 218, ASP Conference Proceedings), eds F. Camilo and B. M. Gaensler

    Kak obychno posle bol'shoi konferencii poyavlyaetsya mnozhestvo statei, napravlennyh v knigu ee materialov. Tri dovol'no pokazatel'nye raboty. Nachinat' chtenie luchshe s obzora. V nem avtor akkuratno i obstoyatel'no rasskazyvaet o pul'sarah (radio i ne tol'ko) - neitronnyh zvezdah, ch'i nablyudatel'nye proyavleniya svyazany s dissipaciei energii vrasheniya. Zatem v dvuh korotkih zametkah rasskazyvaetsya o novyh otkrytiyah, v tom chisle i o dvuh pul'sarov s ochen' vysokim tempom zamedleniya vrasheniya, chto, kak polagayut, svyazano s bol'shimi magnitnymi polyami.


    My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing).

    physics/0310001 Indiiskaya fizika (Indian Physics: Outline of Early History)
    Authors: Subhash Kak
    Comments: 36 pages

    Nikto ne udivitsya, esli skazat', chto "Indiya - rodina slonov", po-krainei mere oni tam zhivut (sm. pachku togo samogo chaya). Takzhe my horosho znaem, chto Indiya - strana odnoi iz mirovyh religii i drevnei kul'tury. Izvestny drevne indiiskie filosofiya, literatura, matematika. Drevneindiiskaya fizika izvestna v men'shei stepeni. Subhash Kak, o stat'yah kotorogo po istorii indiiskoi astronomii my zhe pisali, pytaetsya rasskazat' o rannei istorii fiziki v Indii. Ne buduchi kompetentnymi v etoi oblasti, my zatrudnyaemsya dat' kakoi-to razvernutyi kommentarii, no chitat' interesno.

    cond-mat/0310021 Klassicheskii i kvantovyi rezhimy sverhtekuchei turbulentnosti (Classical and quantum regimes of the superfluid turbulence)
    Authors: G.E. Volovik
    Comments: 11 pages, 1 figure, version submitted to JETP Letters

    Original'naya teoreticheskaya rabota, posvyashennaya turbulentnosti v sverhtekuchei zhidkosti.

    gr-qc/0310059 Skorost' gravitacii v OTO (Speed of Gravity in General Relativity and Theoretical Interpretation of the Jovian Deflection Experiment)
    Authors: Sergei M. Kopeikin
    Comments: 51 pages, 6 figures

    Razvernutaya stat'ya Sergeya Kopeikina, posvyashennaya eksperimentam po izmereniyu skorosti gravitacionnogo vzaimodeistviya i ih interpretacii.



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