Rambler's Top100Astronet    
  po tekstam   po klyuchevym slovam   v glossarii   po saitam   perevod   po katalogu
 

Populyarnaya lekciya po fizike
11 sentyabrya FIAN


Podpiska na rassylku obzorov astro-ph na Subscribe.Ru
Chislo podpischikov perevalilo 2900! Spasibo vam, druz'ya!





  • 06.08.2007. Kto eto tam tak bumknul?
  • 14.03.2007. Taina kolec sverhnovoi
  • 06.03.2007. BL Lac v zhestkom gamma

  • 21.09.2006. Vspyshka vnegalakticheskogo magnitara ili korotkii gamma-vsplesk?

  • 23.08.2006. Chernaya koshka obnaruzhena

  • 13.04.2006. On bol'she Plutona!
  • 07.04.2006. Disk vokrug anomal'nogo pul'sara
  • 29.03.2006. Samyi dalekii gamma-vsplesk: mesto rozhdeniya
  • 22.03.2006. Vega krutitsya volchkom
  • 21.03.2006. Tri goda raboty WMAP
  • 03.03.2006. S chem mozhno pereputat' sverhnovuyu?

    Soderzhanie i bystryi perehod k razdelam obzora


    Stat'i nedeli
    "Luchshie iz luchshih"

  • arxiv/0708.4361
    Fundamental'nye konstanty
  • arxiv/0709.0061
    GRB060602B = Swift J1749.4-2807: neobychnaya tranzientnaya dvoinaya s neitronnoi zvezdoi
  • arxiv/0709.0302
    SN 2005ap: samyi yarkii vzryv
  • arxiv/0709.0752
    Sky in Google Earth

    Otdel'nye stat'i
  • Relyativistskie linii izlucheniya zheleza ot malomassivnyh rentgenovskih dvoinyh v roli izmeritelei radiusov neitronnyh zvezd
  • Kommentarii k stat'e "Predely na vremennuyu variaciyu postoyannoi tonkoi struktury na osnove analiza nablyudenii absorbcionnyh linii v spektrah udalennyh kvazarov"
  • PAH v galo galaktiki NGC 5529
  • Poisk periodicheskogo gravitacionno-volnovogo signala v dannyh chetvertogo nauchnogo etapa LIGO
  • Smeshenie linii, assimetriya linii i opredelenie otnosheniya izotopov 6Li/7Li
  • Modelirovanie reionizacii: harakter processa i vozmozhnost' nablyudeniya
  • Vtorye zvezdy
  • Pervichnoe obilie legkih elementov
  • Snyat' merku so vselennoi: precezionnaya astrometriya s SIM PlanetQuest
  • Spitcerovskii vzglyad na planetarnye tumannosti
  • Lekcii v TASI o kosmologicheskoi postoyannoi
  • Ukazaniya na soosnost' vektorov uglovoi i prostranstvennoi skorosti u pul'sarov. II. Novye dannye i vysota izluchayushei oblasti
  • Nablyudeniya lozhnyh sfericheskih mikrometeoritov
  • Kompaktnye radiodzhety i yadernye oblasti aktivnyh galaktik
  • Novye predel'no malometallichnye zvezdy v galo Galaktiki
  • GRB060602B = Swift J1749.4-2807: neobychnaya tranzientnaya dvoinaya s neitronnoi zvezdoi
  • Proishozhdenie sverhmassivnyh chernyh dyr
  • Fotosfernye processy i magnitnye trubki
  • Gazovye techeniya v Galaktike
  • Mogut li ochen' massivnye zvezdy izbezhat' sverhnovoi s neustoichivost'yu k rozhdeniyu par?
  • SN 2005ap: samyi yarkii vzryv
  • Rasstoyanie do tumannosti Oriona
  • Antropnost' i blizorukost': uslovnye veroyatnosti i kosmologicheskaya postoyannaya
  • Vliyanie pervichnyh chernyh dyr na mikrovolnovoe fonovoe izluchenie i ocenki kosmologicheskih parametrov
  • Obrazuyutsya li sverhmassivnye chernye dyry za schet pryamogo kollapsa?
  • Novaya nauka o gravitacionnyh volnah
  • Nablyudeniya Malogo Magellanova oblaka na Integrale
  • "Belaya kniga" o sostoyanii i budushem nazemnoi gamma-astronomii
  • Sky in Google Earth
  • Poisk nravitacionnyh voln, svyazannyh s 39 gamma-vspleskami, po dannym vtorogo, tret'ego i chetvertogo etapov raboty LIGO
  • Astrofizicheskaya motivaciya dlya modernizacii yuzhnoi observatorii imeni P'era Ozhe
  • Dlinnye gamma-vspleski ot dvoinyh zvezd: ubegayushie Vol'f-Raie praroditeli
  • SPLASH: interaktivaya programma dlya vizualizacii raschetov metodom SPH
  • Vvedenie v himicheskuyu evolyuciyu Galaktiki
  • Populyaciya materinskih galaktik gamma-vspleskov


    Iz razdela physics
  • Vizualizaciya effektov special'noi i obshei teorii otnositel'nosti
  • Istoki teorii strun
  • Fundamental'nye konstanty
  • Kvantovo-mehanicheskoe zaputyvanie i proverka CPT-teoremy s pomosh'yu neitral'nyh mezonov na elektron-pozitronnyh kollaiderah
  • O magnitnyh polyah, generiruemyh v eksperimentah s dinamo
  • Detektory kosmicheskih luchei na Zemle i v kosmose
  • Ne tol'ko iz-za teorii: Daison, Eddington i protivorechivye mify o ekspedicii na zatmenie 1919 g.
  • Inauguracionnaya lekciya Ettore Maiorany po teoreticheskoi fizike


    Polnyi Arhiv predydushih vypuskov.

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

    Arhiv na 14.04.2006 odnim failom
    (36.9 Mb; *.tar.gz)
    gzip homepage

    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 2001-2003 gg.


    Avtor proekta
    Sergei Popov

    Uchastniki:
    Ekaterina Kasimova

    Ranee uchastvovali:
    Mihail Prohorov


    Diskussii po stat'yam Arhiva

    PhysComments
    CosmoCoffee



    Postav'te u sebya nashu knopku!


    Proekt razmeshen na saitah:



    Smotri takzhe diskussii i blogi:


    Informacionnye partnery


    Vy mozhet takzhe razmestit' na svoem saite nashu lentu obzorov








    Kniga avtora obzorov
    Novostnye lenty
    Novosti kosmonavtiki
    Novosti Nauchpopa
    Novosti ot UFN
    Informnauka
    Researcher@
    Elementy.Ru
    Grani.Ru
    Perst

    Podpiska na rassylku obzorov na Subscribe.Ru



    Druzhestvennye rassylki:
    "Astronomiya segodnya"
    "Okno vo Vselennuyu"

    Spisok astrorassylok


  • Obzory preprintov astro-ph

    Vypusk N167
    astro-ph za 25 avgusta - 10 sentyabrya 2007 goda: izbrannye stat'i

    Referaty otdel'nyh statei



    arxiv:0708.3615 Relyativistskie linii izlucheniya zheleza ot malomassivnyh rentgenovskih dvoinyh v roli izmeritelei radiusov neitronnyh zvezd (Relativistic iron emission lines in neutron star low-mass X-ray binaries as probes of neutron star radii)
    Authors: Edward M. Cackett, et al.
    Comments: 5 pages, 3 figures, 3 tables, submitted to ApJL

    Avtory opisyvayut nablyudeniya na sputnike Suzaku. Cel'yu bylo issledovanie linii zheleza v spektrah malomassivnyh rentgenovskih dvoinyh. Izuchenie etih linii mozhet pozvolit' dat' sushestvennye ogranicheniya na radiusy neitronnyh zved. Ideya v tom, chtoby detal'no rassmotret' linii, ispuskaemye s vnutrennego kraya akkrecionnogo diska. Yasno, chto razmer neitronnyi zvezdy men'she. Poskol'ku dlya nekotoryh malomassivnyh rentgenovskih dvoinyh vnutrennii krai diska podbiraetsya ochen' blizko k poverhnosti kompaktnogo ob'ekta, mozhno postavit' horoshii verhnii predel na razmer neitronnoi zvezdy. Predely sootvetstvuyut radiusam poryadka 14.5-16.5 km, esli predpolozhit', chto massy neitronnyh zvezd ravny 1.4 solnechnyh.

    Sm. takzhe arxiv:0708.3648, gde rech' idet o nablyudenii linii zheleza ot odnogo iz ob'ektov, popavshem v lenty novostei. I arxiv:0708.3816, gde primenyaetsya drugoi podhod dlya ogranicheniya razmerov i mass neitronnyh zvezd na osnove ih rentgenovskih spektrov.


    arxiv:0708.3677 Kommentarii k stat'e "Predely na vremennuyu variaciyu postoyannoi tonkoi struktury na osnove analiza nablyudenii absorbcionnyh linii v spektrah udalennyh kvazarov" (Comment on "Limits on the Time Variation of the Electromagnetic Fine-Structure Constant in the Low Energy Limit from Absorption Lines in the Spectra of Distant Quasars")
    Authors: Michael T. Murphy, John K. Webb, Victor V. Flambaum
    Comments: 1 page, 1 EPS figure. Submitted as a PRL Comment on arXiv:astro-ph/0402177 . Further details available in arXiv:astro-ph/0612407

    V poslednie gody aktivno obsuzhdaetsya potencial'naya vozmozhnost' opredeleniya vremennyh variacii postoyannoi tonkoi struktury iz analiza absorbcionnyh linii v spektrah kvazarov vysokogo razresheniya. Odnako sovremennyi uroven' tochnosti, dostizhimyi teleskopami Keck/HIRES i VLT/UVES, poka ne pozvolyaet odnoznachno razreshit' etot vopros. V dannoi zametke zakryvaetsya sensacionnoe soobshenie, opublikovannoe ranee v astro-ph/0402177, o dostignutoi tochnosti $\Delta\alpha/\alpha=(-0.06\pm0.06)\times10^{-5}$. Na osnove bolee korrektnoi statisticheskoi obrabotki teh zhe nablyudatel'nyh dannyh avtorami zametki dokazano, chto uroven' tochnosti na segodnya ne mozhet byt' principial'no luchshe, chem $\Delta\alpha/\alpha=(-0.44\pm0.16)\times10^{-5}$. Podrobnyi analiz rezul'tatov opublikovan v astro-ph/0612407.


    arxiv:0708.3808 PAH v galo galaktiki NGC 5529 (PAHs in the Halo of NGC 5529)
    Authors: J. A. Irwin, H. Kennedy , T. Parkin, S. Madden
    Comments: 16 pages, 5 gif figures, accepted for publication in A&A

    Uzhe mnogo let priroda diffuznyh polos, voznikayushih v mezhzvezdnoi srede, ostaetsya zagadkoi. Odno iz vozmozhnyh ob'yasnenii - policiklicheskie aromaticheskie uglevody (Polycyclic Aromatic Hydrocarbonc ili PAHs) - pylevye chasticy slozhnoi struktury. Galaktika NGC 5529, vidimaya s rebra, nablyudalas' avtorami v polose 6.7 mkm, v kotoroi izluchenie PAHs preobladaet. Bylo naideno protyazhennoe strukturirovannoe galo, prostirayusheesya do vysot 3.7 kps nad ploskost'yu galaktiki, i sledovatel'no sushestvuet process, pozvolyayushii vynosit' pylevye chasticy daleko za predely diska galaktik. Eto uzhe vtoroi sluchai izucheniya galo galaktiki v izluchenii PAHs (NGC 5907). Nuzhno otmetit', chto galaktiki vidimye s rebra seichas aktivno nablyudayutsya na mnogih dlinah voln. Kazhdaya iz komponent mezvezdnoi sredy (pyl' i PAHs, molekulyarnyi i neitral'nyi gaz, diffuznyi ionizovannyi gaz) neset vazhnuyu informaciyu o slozhnyh pocessah vzaimodeistviya diska i galo, pomogaet ponyat' prirodu galakticheskogo vetra, proyasnyaet detali himicheskoi evolyucii.


    arxiv:0708.3818 Poisk periodicheskogo gravitacionno-volnovogo signala v dannyh chetvertogo nauchnogo etapa LIGO (All-sky search for periodic gravitational waves in LIGO S4 data)
    Authors: LIGO Scientific Collaboration: B. Abbott, et al
    Comments: 39 pages, 41 figures

    Privedeny dannye obrabotki ocherednogo (chetvertogo) otrezka nauchnoi raboty gravitacionno-volnovoi antenny LIGO. Eto byl dostatochno korotkii progon - okolo mesyaca - v nachale 2005 goda. No vazhno ponimat', chto obrabotka dannyh zanimaet ochen' bol'shoe vremya!

    Avtory obsuzhdayut poiski periodicheskogo signala. Nichego ne naideno, no predely (osobenno dlya nekotoryh uchastkov nebesnoi sfery) stanovyatsya uzhe interesnymi.


    arxiv:0708.3819 Smeshenie linii, assimetriya linii i opredelenie otnosheniya izotopov 6Li/7Li (Line shift, line asymmetry, and the 6Li/7Li isotopic ratio determination)
    Authors: Roger Cayrel, et al.
    Comments: Accepted for publication on A&A Letters

    Litii - sovershenno unikal'nyi himicheskii element, sostoyashii iz dvuh izotopov 6Li i 7Li. Sintez litiya proishodit tremya spososobami: srazu posle Bol'shogo Vzryva v processe pervichnogo nukleosinteza (tol'ko 7Li), v processe zvezdnoi evolyucii na stadii AGB - asimptoticheskoi vetvi gigantov (tol'ko 7Li) i pri vzaimodeistvii kosmicheskih luchei s atomami mezhzvezdnoi sredy (v osnovnom 6Li). Poskol'ku 6Li sinteziruetsya gorazdo pozzhe 7Li, otnoshenie izotopov litiya 6Li/7Li v staryh malometallichnyh zvezdah galo sluzhit odnim iz vazhnyh nablyudatel'nyh testov teorii pervichnogo nukleosinteza. Avtory dannoi stat'i (polovina iz nih - vsemirno izvestnye uchenye) dvumya razlichnymi sposobami izuchili soderzhanie izotopov litiya v atmosfere malometallichnoi zvezdy HD 74000, prinadlezhashei galo nashei Galaktiki. Rezul'taty etogo analiza, osnovannogo na novom metode razdeleniya blendirovannyh linii izotopov 6Li i 7Li, pokazali, chto dlya vseh ranee opublikovannyh rabot mozhno s bol'shoi uverennost'yu govorit' o sistematicheskoi pereocenke soderzhaniya izotopa 6Li. Po ocenke avtorov, soderzhanie 6Li v atmosfere zvezdy HD 74000 (metallichnost' [Fe/H]=- 2.0 dex) ne prevyshaet odnogo-dvuh procentov ot soderzhaniya izotopa 7Li. Esli rezul'tat podobnogo analiza budet podtverzhden dlya statisticheski znachimogo chisla malometallichnyh zvezd, ischeznet neobhodimost' poiska variantov sinteza 6Li na rannih etapah evolyucii Vselennoi i nablyudatel'noe ogranichenie teorii pervichnogo nukleosinteza budet nadezhno podtverzhdeno.


    arxiv:0708.3846 Modelirovanie reionizacii: harakter processa i vozmozhnost' nablyudeniya ( Simulating Reionization: Character and Observability)
    Authors: Ilian T. Iliev, Paul R. Shapiro , Garrelt Mellema, Ue-Li Pen, Patrick McDonald, J. Richard Bond
    Comments: 3 pages, to appear in the Proceedings of First Stars III, Santa Fe, July 2007, AIP Conf. Series

    Reionizaciya - sravnitel'no nedolgii etap evolyucii Vselennoi ot momenta obrazovaniya pervyh zvezd na z= 30-40, kogda mezhgalakticheskaya sreda byla polnost'yu neitral'noi i holodnoi, do momenta, sootvetsvuyushego krasnym smesheniyam z=6-7, kogda MGS stala ionizovannoi i goryachei. Progress v ponimanii prirody i svoistv etogo nedostupnogo pryamomu izucheniyu perioda dostignut v poslednie gody blagodarya sovremennym kosmologicheskim nablyudatel'nym proektam i modelirovaniyu perenosa izlucheniya v usloviyah rannei Vselennoi. V zametke Iliana Il'eva dano dostupnoe ne kosmologam izlozhenie osnovnyh faktov o reionizacii. Eta nebol'shaya stat'ya (i glavnoe ssylki v nei) mozhet byt' poleznoi dlya pervogo oznakomleniya s temoi, kotoraya stanovitsya vse bolee i bolee populyarnoi.


    obzor arxiv:0708.3848 Vtorye zvezdy (The Second Stars)
    Authors: Falk Herwig
    Comments: Biermann award 2004 lecture, AG meeting, Prague (2005RvMA...18...21)

    "Vtorye zvezdy" - eto svetila, voznikshie srazu posle pervyh. Pervye sostoyali tol'ko iz pervichnogo veshestva, poetomu v osnovnom byli ochen' massivnymi i zhili nedolgo. Seichas takih net (esli, konechno, gde-to ne ostalos' dostatochnoe kolichestvo ploho peremeshannogo gaza). "Vtorye zvezdy" obrazovyvalis' iz uzhe slegka obogashennogo tyazhelymi elementami veshestva. Poetomu oni mogli byt' malomassivnymi, a znachit mogli dozhit' do nashih dnei. T.o., oni yavlyayutsya unikal'nymi "svidetelyami epohi". O tom, chto oni rasskazyvayut nam - v stat'e.


    arxiv:0708.3922 Pervichnoe obilie legkih elementov (Primordial Light Element Abundances)
    Authors: Paolo Molaro
    Comments: talk given at the conference "Pathways Through an Eclectic Universe" Johan Knapen, Terry Mahoney and Alexandre Vazdekis Editors

    V paru k predydushemu obzoru mozhno porekomendovat' stat'yu po pervichnomu soderzhaniyu legkih elementov vo vselennoi (sm. takzhe vyshe stat'yu 0708.3819).


    obzor arxiv:0708.3953 Snyat' merku so vselennoi: precezionnaya astrometriya s SIM PlanetQuest (Taking the Measure of the Universe: Precision Astrometry with SIM PlanetQuest)
    Authors: Stephen C. Unwin et al.
    Comments: 54 pages, 28 figures, uses emulateapj. Submitted to PASP

    Chto zh, lyudi hotyat imet' parallaksy s tochnost'yu 4 mikrosekundy dugi dlya ob'ektov do 20 zvezdnoi velichiny. Ozhidaetsya, chto sputnik SIM PlanetQuest smozhet eto delat'. Avtory obsuzhdayut, kakie novye rezul'taty mozhno poluchit' s pomosh'yu takogo instrumenta.


    miniobzor arxiv:0708.4175 Spitcerovskii vzglyad na planetarnye tumannosti (Spitzer's View of Planetary Nebulae)
    Authors: Joseph L. Hora
    Comments: 8 pages, 2 figures, invited review to appear in the proceedings of the conference "Asymmetrical Planetary Nebulae IV", eds. R.L.M. Corradi, A. Manchado & N. Soker

    Nebol'shaya stat'ya, v kotoroi dana svodka dannyh po planetarnym tumannostyam, poluchennyh na kosmicheskom infrakrasnom teleskope imeni Spitcera.

    Drugoi poleznyi korotkii obzor iz togo zhe sbornika (uzhe yasno, chto takim miniobzorov budet mnogo) posvyashen asimmetrii planetarnyh tumannostei.


    obzor arxiv:0708.4231 Lekcii v TASI o kosmologicheskoi postoyannoi (TASI Lectures on the Cosmological Constant)
    Authors: Raphael Bousso
    Comments: 39 pages, 3 figures

    Obzornye lekcii po kosmologicheskoi postoyannoi. Obozrevayutsya raznye aspekty, vklyuchaya vozmozhnye puti resheniya problemy v ramkah teorii strun.


    arxiv:0708.4251 Ukazaniya na soosnost' vektorov uglovoi i prostranstvennoi skorosti u pul'sarov. II. Novye dannye i vysota izluchayushei oblasti (Evidence for alignment of the rotation and velocity vectors in pulsars. II. Further data and emission heights)
    Authors: Simon Johnston, M. Kramer, A. Karastergiou, G. Hobbs, S. Ord, J. Wallman
    Comments: Accepted by MNRAS. 14 pages

    Avtory privodyat dannye po polyarizacionnym issledovaniyam 22 pul'sarov. Osnovnyh rezul'tatov dva. Vo-pervyh, dlya nekotoryh iz neitronnyh zvezd udalos' ocenit' ugol mezhdu os'yu vrasheniya i napravleniem prostranstvennoi skorosti. Vo-vtoryh, avtory smogli sdelat' ocenki vysoty nad poverhnost'yu neitronnoi zvezdy, na kotoroi ispuskaetsya izluchenie v raznyh fazah. Ugly ocenili dlya 14 pul'sarov. U semi iz nih oni dostatochno maly. Eto nahoditsya v soglasii s bolee rannimi rezul'tatami na men'shei statistike (hotya, ranee polagali, chto u vseh oni mogut byt' maly). Chto kasaetsya vysot izlucheniya, to, opyat' zhe v soglasii s bolee rannimi dannymi, chto izluchenie v seredine profilya impul'sa generiruetsya na bolee nizkih vysotah, chem po krayam profilya.


    arxiv:0708.4276 Nablyudeniya lozhnyh sfericheskih mikrometeoritov (Observation of False Spherical Micrometeorites)
    Authors: Attilio Anselmo
    Comments: 6 pages, 7 figures

    Lyubopytnaya zametka. Avtor, proanalizirovav pyl' s krysh domov, pokazyvaet, chto sfericheskie chasticy, kotorye inogda svyazyvayut s mikrometeoritami, na samom dele svyazany s tehnicheskoi deyatel'nost'yu cheloveka.


    miniobzor arxiv:0708.4280 Kompaktnye radiodzhety i yadernye oblasti aktivnyh galaktik (Compact radio jets and nuclear regions in active galaxies)
    Authors: Andrei Lobanov
    Comments: Invited review at the 8th European VLBI NetworkSymposium. 12 pages, 6 figures, PoS tex. To be published electronically by Proeedings of Science

    Kompaktnyi obzor po kompaktnym radiodzhetam. Dana ochen' horoshaya svodka dannyh.


    arxiv:0709.0029 Novye predel'no malometallichnye zvezdy v galo Galaktiki (New Extremely Metal-Poor Stars in the Galactic Halo)
    Authors: Judith G. Cohen,et al.
    Comments: Accepted to the ApJ

    Avtorami predstavlen detal'nyi analiz spektrov vysokogo razresheniya novyh vos'mi zvezd galo nashei Galaktiki, imeyushih predel'no malye metallichnosti [Fe/H] < -3.5 dex. Pohozhe na to, chto pri ochen' malyh metallichnostyah stohastichnost' vzryvov sverhnovyh II i neeffektivnost' peremeshivaniya mezhzvezdnoi sredy okazyvayut sushestvennoe vliyanie na nablyudaemye otnositel'nye soderzhaniya himicheskih elementov v atmosferah etih zvezd. Dannye takogo roda yavlyayutsya vazhnym istochnikom informacii o nachal'nyh stadiyah evolyucii Galaktiki, a takzhe sluzhat testom dlya zvezdnoi teorii nukleosinteza.


    arxiv:0709.0061 GRB060602B = Swift J1749.4-2807: neobychnaya tranzientnaya dvoinaya s neitronnoi zvezdoi (GRB060602B = Swift J1749.4-2807: an unusual transiently accreting neutron-star X-ray binary)
    Authors: Rudy Wijnands et al.
    Comments: submitted to MNRAS

    Pohozhe, chto odin iz gamma-vspleskov na samom dele yavlyaetsya neobychnoi vspyshkoi na neitronnoi zvezde v tesnoi dvoinoi sisteme. Avtory polagayut, chto ne isklyucheno, chto est' mnogo sistem takogo tipa, no poka oni uskol'zayut ot nablyudatelei iz-za trudnoulovimosti ih vspyshek.


    obzor arxiv:0709.0070 Proishozhdenie sverhmassivnyh chernyh dyr (Origin of supermassive black holes)
    Authors: V. I. Dokuchaev, Yu. N. Eroshenko, S. G. Rubin
    Comments: 42 pages, 5 figures, review paper

    Dan obzor razlichnyh scenariev obrazovaniya sverhmassivnyh chernyh dyr. Razumeetsya, avtory obsuzhdayut nedostatki razlichnyh scenariev i vozmozhnye puti resheniya imeyushihsya problem.


    obzor arxiv:0709.0081 Fotosfernye processy i magnitnye trubki (Photospheric processes and magnetic flux tubes)
    Authors: O. Steiner
    Comments: 48 pages, 33 figures, Lecture notes

    Lekcii posvyasheny processam v poverhnostnyh sloyah Solnca. Dannye nablyudenii pokazyvayut inteersnye melkomasshtabnye struktury. S pomosh'yu chislennogo modelirovaniya udaetsya ponyat', chto zhe my nablyudaem.


    arxiv:0709.0091 Gazovye techeniya v Galaktike (Gaseous Flows in Galaxies)
    Authors: F. Combes
    Comments: 10 pages, 6 figures, review paper in the Proceedings of the IAU Symposium 245, "Formation and Evolution of Galaxy Bulges", held at Oxford, U.K., July 2007

    Obsuzhdaetsya vliyanie radial'nyh gazovyh techenii na dinamiku spiral'nyh galaktik. Rassmatrivaetsya ih vliyanie na processy, proishodyashiev central'nyh oblastyah galaktik.


    arxiv:0709.0202 Mogut li ochen' massivnye zvezdy izbezhat' sverhnovoi s neustoichivost'yu k rozhdeniyu par? (Can very massive stars avoid Pair-instability Supernovae?)
    Authors: S. Ekstroem, G. Meynet, A. Maeder
    Comments: to be published in the conference proceedings of First Stars III, Santa Fe, 2007

    Massivnye zvezdy maloi metallichnosti v nekotorom diapazone mass dolzhny teryat' svoyu ustoichivost' iz-za rozhdeniya par v yadre, chto privodit k specificheskomu vzryvu sverhnovoi. Takie sverhnovye dolzhny ostavlyat' harakternye "otpechatki pal'cev" iz-za osobennostei sostava vybrasyvaemogo veshestva. "Uliki" ne obnaruzheny. Eto mozhet byt' svyazano s tem, chto vse-taki takie vzryvy ne proishodyat. Avtory rassmatrivayut nekotorye varianty, dlya togo, chtoby zvezdy mogli izbezhat' takoi neustoichivosti. Pohozhe, chto variant naiden.


    arxiv:0709.0302 SN 2005ap: samyi yarkii vzryv (SN 2005ap: A Most Brilliant Explosion)
    Authors: Robert M. Quimby et al.
    Comments: ApJ Letters Accepted; 4 pages

    Opisany nablyudeniya samoi moshnoi sverhnovoi, vspyhnuvshei v 2005 godu. Blagodarya sisteme ROTSE-III ee udalos' nablyudat' i do maksimuma bleska.


    arxiv:0709.0485 Rasstoyanie do tumannosti Oriona (The distance to the Orion Nebula)
    Authors: K. M. Menten et al.
    Comments: 13 pages, 3 figures, to appear in Astronomy & Astrophyiscs

    S pomosh'yu VLBA izmeren trigonometricheskii parallaks dlya neskol'kih chlenov skopleniya v tumannosti Oriona. Rasstoyanie ravno 414+/-7 pk.


    arxiv:0709.0502 Antropnost' i blizorukost': uslovnye veroyatnosti i kosmologicheskaya postoyannaya (Anthropics and Myopics: Conditional Probabilities and the Cosmological Constant)
    Authors: Irit Maor, Lawrence Krauss, Glenn Starkman
    Comments: 13 pages

    Avtory privodyat dostatochno ubeditel'noe rassuzhdenie v pol'zu togo, chto ne stoit vosprinimat' fakt nashego sushestvovaniya kak nechto bezuslovno ob'yasnyayushee velichinu kosmologicheskoi postoyannoi. Naprimer, pri podobnom ob'yasnenii molchalivo predpolagaetsya, chto my yavlyaemsya tipichnymi nablyudatelyami, chto ne ochevidno.


    arxiv:0709.0524 Vliyanie pervichnyh chernyh dyr na mikrovolnovoe fonovoe izluchenie i ocenki kosmologicheskih parametrov (Effect of Primordial Black Holes on the Cosmic Microwave Background and Cosmological Parameter Estimates)
    Authors: Massimo Ricotti, Jeremiah P. Ostriker, Katherine J. Mack
    Comments: 17 pages (Apj style), 9 figures, submitted to ApJ

    Avtory obsuzhdayut, kak nalichie dostatochno massivnyh (ne isparayushihsya) pervichnyh chernyh dyr mozhet vliyat' na svoistva reliktovogo izlucheniya, reionizaciyu i tp. Udaetsya dat' sushestvenno (na poryadki) bolee strogii predel na chernye dyry s massoi bolee 0.1 solnechnoi. Uchet pervichnyh chernyh dyr dostatochno bol'shoi massy mozhet byt' vazhen pri opredelenii kosmologicheskih parametrov (ved' pri takoi procedure vsegda zakladyvaetsya nekotoraya model').


    arxiv:0709.0545 Obrazuyutsya li sverhmassivnye chernye dyry za schet pryamogo kollapsa? (Did supermassive black holes form by direct collapse?)
    Authors: Mitchell C. Begelman
    Comments:5 pages, 2 figures. To appear in "First Stars III", proceedings of the conference in Santa Fe, NM, July 16-20, 2007, eds. B. O'Shea, A. Heger and T. Abel. AIP Conference Proceedings

    Avtor rassmatrivaet bystroe formirovanie chernyh dyr v yadrah galaktik za schet pryamogo kollapsa gaza (t.e. bez obrazovaniya zvezd). Za schet akkrecii takie dyry bystro narashivayut svoyu massu do neskol'kih tysyach solnechnyh. Eto mozhet pomoch' reshit' problemu bystrogo rosta massy sverhmassivnyh chernyh dyr.


    miniobzor arxiv:0709.0608 Novaya nauka o gravitacionnyh volnah (The New Science of Gravitational Waves)
    Authors: Craig J. Hogan
    Comments: 10 pages, LaTeX, to appear in "Frontiers of Astrophysics: A Celebration of NRAO's 50th Anniversary", eds. A.H.Bridle, J.J.Condon and G.C.Hunt

    Avtor rassmatrivaet, kakie vozmozhnosti v issledovanii vselennoi otkroyutsya pered nami v blizhaishie desyatiletiya za schet pryamoi registracii gravitacionnyh voln.


    arxiv:0709.0633 Nablyudeniya Malogo Magellanova oblaka na Integrale (INTEGRAL observations of the Small Magellanic Cloud)
    Authors: V.A. McBride et al.
    Comments: Accepted for publication in MNRAS

    Opisany rezul'taty dovol'no staryh (2003 god) nablyudenii Malogo Magellanovogo oblaka na sputnike Integral. Pribory uvideli dva istochnika. Odin iz nih chetko otozhdestvlyaetsya kak izvestnaya sistema SMC X-1. Vtoroi istochnik ne otozhdestvlen. Vozmozhno, chto eto ranee neizvestnaya rentgenovskaya dvoinaya (skoree vsego rentgenovskii pul'sar s massivnym kompan'onom i akkreciei cherez vnutrennyuyu tochku lagranzha).


    miniobzor arxiv:0709.0704 "Belaya kniga" o sostoyanii i budushem nazemnoi gamma-astronomii (White Paper on the Status and Future of Ground-based Gamma-ray Astronomy)
    Authors: H. Krawczynski et al.
    Comments: 4 pages, Proceedings of the 30th ICRC, Merida, Mexico, July 2007

    V svyazi s burnym razvitiem nazemnoi gamma-astronomii astrofizicheskoe podrazdelenie Amerikanskogo fizicheskogo obshestva zakazalo podorbnyi otchet (t.n. "beluyu knigu") po etoi teme. V korotkoi zametke avtory opisyvayut rabotu gruppy, zanimayusheisya sostavleniem otcheta.


    arxiv:0709.0750 Zakon poglosheniya i svoistva pyli v napravlenii Magellanovyh oblakov ( Reddening law and interstellar dust properties along Magellanic sight-lines)
    Authors: Frederic Zagury
    Comments: accepted for publication in Astrophysics and Space Science. 16 pages, 12 figures.

    Provedennyi avtorom analiz nablyudatel'nyh dannyh pokazal, chto zakony poglosheniya v nashei Galaktike, Bol'shom i Malom Magellanovom oblakah imeyut odinakovuyu prirodu i, sledovatel'no, net neobhodimosti v predpolozhenii o tom, chto svoistva pylevyh chastic v etih galaktikah sil'no otlichayutsya drug ot druga. S tochki zreniya avtora sovremennyi uroven' znaniya ne pozvolyaet vydelit' i opisat' takie razlichiya.


    arxiv:0709.0752 Sky in Google Earth (Sky in Google Earth: The Next Frontier in Astronomical Data Discovery and Visualization)
    Authors: Ryan Scranton et al.
    Comments: 10 pages, 3 figures, to be submitted to PASP

    Opisan proekt Sky in Google Earth. Bol'she skazat'-to i nechego!

    Obsudit' v ZhZh-soobshestve ru_astroph.
    Obsudit' na Astroforume v Nauchnoi panorame.


    arxiv:0709.0766 Poisk nravitacionnyh voln, svyazannyh s 39 gamma-vspleskami, po dannym vtorogo, tret'ego i chetvertogo etapov raboty LIGO (Search for Gravitational Waves Associated with 39 Gamma-Ray Bursts Using Data from the Second, Third, and Fourth LIGO Runs)
    Authors: LIGO Scientific Collaboration
    Comments: 23 pages, 10 figures, 14 tables; to be submitted to Phys. Rev. D

    Po dannym treh etapov nauchnoi raboty LIGO postavleny verhnie predely na gravitacionnoe izluchenie ot 39 gamma-vspleskov.


    arxiv:0709.0772 Astrofizicheskaya motivaciya dlya modernizacii yuzhnoi observatorii imeni P'era Ozhe (Astrophysics Motivation behind the Pierre Auger Southern Observatory Enhancements)
    Authors: Gustavo Medina-Tanco, for the Pierre Auger Collaboration
    Comments: Proc. of the 30th Int. Cosmic Ray Conference, Merida, Mexico, July 2007

    Dlya yuzhnoi (argentinskoi) chasti observatorii imeni P'era Ozhe zaplanirovan vvod v stroi novyh detektorov. Kak ni stranno, no cel'yu yavlyaetsya ne dvizhenie v storonu registracii bolee energichnyh kosmicheskih luchei, a naoborot. Delo v tom, chto luchi s energiei menee 1018 eV registriruyutsya ne slishkom horosho. Ved' iznachal'noi cel'yu byli imenno luchi sverhvysokih energii! Teper' uchenye hotyat protyanut' chuvstvitel'nost' priborov v storonu bolee nizkih energii (razumeetsya, sdelat' eto gorazdo proshe, chem povyshat' veroyatnost' registracii bolee energichnyh chastic).

    Novovvedenie pozvolit izuchat' na observatorii oblasti spektra, nazyvaemye "vtorym kolenom" i "lodyzhka" (iznachal'no byl vveden termin "koleno", otrazhayushii izlom v spektre). Bezuslovno, ochen' vazhno poluchat' dannye v dostatochno shirokom diapazone v ramkah odnogo i togo zhe eksperimenta.


    arxiv:0709.0829 Dlinnye gamma-vspleski ot dvoinyh zvezd: ubegayushie Vol'f-Raie praroditeli (Long GRBs from binary stars: runaway, Wolf-Rayet progenitors)
    Authors: M.Cantiello, S.-C.Yoon, N.Langer, M.Livio
    Comments: 6 pages, To appear in the proceedings of the conference "Unsolved problems in stellar physics" - Cambridge, July 2007

    Dlya poyavleniya dlinnogo gamma-vspleska, chto v naibolee populyarnom scenarii svyazyvaetsya s kollapsom yadra dostatochno massivnoi zvezdy, neobhodimo bystroe vrashenie yadra zvezdy. Obychno zvezdy dostatochno effektivno zamedlyayutsya. Raskrutit' zvezdu mozhno v tesnoi dvoinoi sisteme. Krome togo, bylo predlozheno, chto pri maloi metallichnosti zvezdy ostayutsya dostatochno bystrovrashayushimisya. V dannoi stat'e predstavlen analiz situacii, v kotoroi malometallichnaya zvezda vhodit v tesnuyu dvoinuyu sistemu.

    Vo-pervyh, pokazano, chto v takoi dvoinoi mozhno poluchit' usloviya, pri kotoryh vtoraya (menee massivnaya) zvezda dast gamma-vsplesk. Vo-vtoryh, sistema raspadaetsya posle pervogo vzryva, poetomu mozhno ozhidat', chto predsverhnovaya budet ubegayushei zvezdoi. Eto znachit, chto ona proidet neskol'ko sot parsek do porozhdeniya vspleska. Nakonec, poskol'ku skoree vsego napravlenie dzheta budet perpendikulyarno skrosti zvezdy , mozhno sdelat' predskazaniya otnositel'no svoistv sredy vokrug vzryvayusheisya zvezdy. Eto vazhno dlya opisaniya svoistv poslesvechenii (oreolov) gamma-vspleskov.


    arxiv:0709.0832 SPLASH: interaktivaya programma dlya vizualizacii raschetov metodom SPH (SPLASH: An interactive visualisation tool for Smoothed Particle Hydrodynamics simulations)
    Authors: Daniel J. Price
    Comments: 14 pages, 11 figures, accepted to PASA

    Avtor opisyvaet (i reklamiruet) soft dlya vizualizacii gidrodinamicheskih raschetov metodom sglazhennyh chastic. Programma dostupna dlya skachivaniya.


    obzor arxiv:0709.0833 Vvedenie v himicheskuyu evolyuciyu Galaktiki (An Introduction to Galactic Chemical Evolution)
    Authors: Nikos Prantzos
    Comments: 46 pages, 25 figures, an introductory course to appear in "Stellar Nucleosynthesis: 50 years after B2FH", C. Charbonnel and J.P. Zahn (Eds.), EAS publications Series

    Bol'shoi obzor vvodnogo haraktera po himicheskoi evolyucii Galaktiki.


    miniobzor arxiv:0709.0861 Populyaciya materinskih galaktik gamma-vspleskov (The population of GRB hosts)
    Authors: N. R. Tanvir, A. J. Levan
    Comments: 10 pages, 4 figures, to appear in proceedings of 070228: The next decade of GRB afterglows, Amsterdam March 2007

    Dlya mnogih gamma-vspleskov my mozhem poluchit' vpolne podrobnuyu informaciyu o galaktikah, v kotoryh oni poyavilis'. Razumeetsya, eto daet mnogo povodom dlya razdumii. Avtory rezyumiruyut nashe znanie v etoi oblasti, i pytayutsya pokazat', kak eto pomogaet v ponimanii prirody mehanizma vspleskov.




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


    arxiv:0708.3454 Vizualizaciya effektov special'noi i obshei teorii otnositel'nosti (First-person visualizations of the special and general theory of relativity)
    Authors: U. Kraus
    Comments: To be published in The European Journal of physics, 13 pages, 9 figures, for associated mpeg files see this http URL (section "First-person visualizations of the special and general theory of relativity")

    Avtor predlagaet animacii effektov STO i OTO. Stat'ya soderzhit nekotorye neobhodimye poyasneniya.


    arxiv:0708.3940 Istoki teorii strun (The beginning of string theory: a historical sketch)
    Authors: Paolo Di Vecchia, Adam Schwimmer
    Comments: Latex 18 pages, 3 figures, use svmult.cls. Contribution to the volume "String theory and fundamental interactions", dedicated to Gabriele Veneziano on his 65th birthday

    Pervye raboty po tomu napravleniyu, kotoroe pozzhe prevratilos' v teoriyu strun, prinadlezhat izvestneishemu fiziku-teoretiku Gabriele Veneciano. K ego yubileyu (tradicionno v mire otmechayut 65-letie uchenyh, prichina etogo budet maloponyatna bol'shinstvu nashih nachal'nikov, zanimayushih svoi posty pozhiznenno) Veneciano i napisan nebol'shoi obzor po rannim rabotam v teorii strun.


    arxiv:0708.4361 Fundamental'nye konstanty (Fundamental Constants)
    Authors: Frank Wilczek
    Comments: 20 pages, no figures

    Neprostoi, no ochen' soderzhatel'nyi tekst ot Franka Vil'cheka.


    arxiv:0709.0087 Kvantovo-mehanicheskoe zaputyvanie i proverka CPT-teoremy s pomosh'yu neitral'nyh mezonov na elektron-pozitronnyh kollaiderah (Research News -- Quantum Mechanical Entanglement and Tests of CPT Theorem with Neutral Mesons at e+ e- Colliders)
    Authors: B. Ananthanarayan, Kshitij Garg
    Comments: 6 pages, submitted to Current Science

    Avtory rassmatrivayut neskol'ko nedavnih eksperimentov (BELLE na KEK-B v Yaponii i KLOE na ustanovke DAFNE v Italii), v kotoryh bylo podtverzhdeno nablyudenie zaputyvaniya sostoyanii, a takzhe podtverzhdena t.n. CPT-teorema.


    arxiv:0709.0234 O magnitnyh polyah, generiruemyh v eksperimentah s dinamo (On the magnetic fields generated by experimental dynamo)
    Authors: F. Petrelis, N. Mordant, S. Fauve
    Comments: 40 pages, 13 figures

    V astrofizike generaciya polya razlichnymi dinamo-mehanizmami igraet ogromnuyu rol'. Okazyvaetsya, i v laboratorii mozhno pytat'sya vosproizvesti takoi process. V stat'e opisyvaetsya tri uspeshnyh eksperimenta i obsuzhdayutsya ih rezul'taty.


    arxiv:0709.0634 Detektory kosmicheskih luchei na Zemle i v kosmose (Detectors for Cosmic Rays on Ground and in Space)
    Authors: Hiroyasu Tajima
    Comments: 14 pages, 21 figures, Invited Talk at 11th Vienna Conference on Instrumentation, Vienna, Austria, February 19-24, 2007, To be published in Nuclear Instruments and Methods A

    Avtor daet obzor sovremennyh eksperimentov v oblasti kosmicheskih luchei: observatoriya im. Ozhe, PAMELA, ICECUBE, ANITA, rassmatrivaet cherenkovskie teleskopy (CANGAROO, HESS, MAGIC, VERITAS), zatem rech' idet o sputnike GLAST.


    arxiv:0709.0685 Ne tol'ko iz-za teorii: Daison, Eddington i protivorechivye mify o ekspedicii na zatmenie 1919 g. (Not Only Because of Theory: Dyson, Eddington and the Competing Myths of the 1919 Eclipse Expedition)
    Authors: Daniel Kennefick
    Comments: 30 pages, to appear in proceedings of the 7th Conference on the History of General Relativity, Tenerife, 2005

    Avtor rassmatrivaet vazhnyi moment v istorii nauki: ekspediciyu 1919 goda, v hode kotoroi proveryalos' predskazanie OTO ob otklonenii luchei sveta v pole Solnca. Vyvod avtora v tom, chto nablyudateli ne byli predvzyaty, t.e., chto oni ne stremilis' podtverdit' OTO, a provodili normal'noe neangazhirovannoe issledovanie.


    arxiv:0709.0941 Inauguracionnaya lekciya Ettore Maiorany po teoreticheskoi fizike (Ettore Majorana's Inaugural Lecture on Theoretical Physics (Naples, Italy; Jan.13, 1938))
    Authors: Bruno Preziosi, Erasmo Recami
    Comments: bilingual submission of 34 pages: (i) article in English (16 pages), and (ii) article in Italian (18 pages). Edited, "finished" versions of these papers appeared as: Journal-ref: chapter 11 in "Ettore Majorana - Scientific Papers", ed. by G.F.Bassani and SIF (S.I.F. and Springer; Bologna and Berlin, 2006)

    Ocherednaya stat'ya, posvyashennaya rabote izvestnogo ital'yanskogo fizika i matematika Ettore Maiorany. V stat'e privodyatsya zametki, podgotovlennye im dlya lekcii v Neapole.



    Publikacii s klyuchevymi slovami: astro-ph - elektronnye preprinty
    Publikacii so slovami: astro-ph - elektronnye preprinty
    Sm. takzhe:
    Vse publikacii na tu zhe temu >>

    Ocenka: 2.5 [golosov: 13]
     
    O reitinge
    Versiya dlya pechati Raspechatat'

    Astrometriya - Astronomicheskie instrumenty - Astronomicheskoe obrazovanie - Astrofizika - Istoriya astronomii - Kosmonavtika, issledovanie kosmosa - Lyubitel'skaya astronomiya - Planety i Solnechnaya sistema - Solnce


    Astronet | Nauchnaya set' | GAISh MGU | Poisk po MGU | O proekte | Avtoram

    Kommentarii, voprosy? Pishite: info@astronet.ru ili syuda

    Rambler's Top100 Yandeks citirovaniya