The R.A.P.Project "Prosto o slozhnom" "Astro-ph za pervuyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N60) Populyarno dlya professionalov Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 17.11.2003. Minigalo i obrazovanie pervyh zvezd 10.11.2003. "Esli by krasota ubivala ..." Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0311343 Astrofizicheskie neitrinnye teleskopy astro-ph/0311409 Izmenenie morfologii Krabovidnoi Tumannosti v rentgene na godovyh intervalah vremeni astro-ph/0311484 Paradigma slivayushihsya belyh karlikov dlya Sverhnovyh i gamma-vspleskov astro-ph/0311518 Modelirovanie mezhgalakticheskoi sredy astro-ph/0311525 Rasstoyaniya do cefeid po dannym infrakrasnoi interferometrii - I. Nablyudeniya semi galakticheskih cefeid na VINCI/VLTI astro-ph/0311541 Spektroskopiya [Fe/H] 98 zvezd s planetami: issledovanie veroyatnosti obrazovaniya planet Otdel'nye stat'i Obzor teorii neszhimaemoi MGD turbulentnosti Ogranicheniya na variacii G po dannym o nukleosinteze Geneticheskie anomalii na Tunguske i elektrofonnye meteory "Razbitaya Gitara": evolyuciya golovnoi udarnoi volny neitronnoi zvezdy Razmery samyh dlinnyh filamentov vo Vselennoi Astrofizicheskie neitrinnye teleskopy Bol'shaya radioastronomiya: sleduyushie 70 let Est' li ukazaniya v dannyh po sverhnovym na evolyuciyu temnoi energii? Basic Properties of Compressible MHD Turbulence: Implications for Molecular Clouds Q-LET - programmnyi kod dlya modelirovaniya gravitacionnogo linzirovaniya Obzor rentgenovskih nablyudenii ostatkov sverhnovyh Izmenenie morfologii Krabovidnoi Tumannosti v rentgene na godovyh intervalah vremeni Pul'sar PSR J1909-3744 - dvoinoi millisekundnyi pul'sar s ochen' malym koefficientom zapolneniya Anizotropiya raspredeleniya sputnikov otnositel'no pervichnyh galaktik v obzore 2dFGRS: effekt Hol'mberga Nereshennye problemy v kosmologii Fenomenologiya kvantovoi gravitacii, lorenc-invariantnost' i diskretnost' Eshe odno desyatiletie (astro)fiziki strannogo veshestva O kritike Mahom N'yutona i Kopernika Kosmicheskie luchi sverhvysokih energii Paradigma slivayushihsya belyh karlikov dlya Sverhnovyh i gamma-vspleskov Kosmicheskii i galakticheskii fon neitrino ot termoyadernyh istochnikov Uskorennoe rasshirenie Vselennoi ili smeshivanie aksionov i fotonov "Zarubki" na profilyah yarkih pul'sarov Magnitnye akkrecionnye potoki v Kerrovskoi metrike Vosstanovlenie izobrazhenii gravitacionnyh linz regulyariziruyushimi algoritmami Pryamaya podpitka central'noi chernoi dyry Galaktiki zvezdnymi vetrami blizhaishih zvezd Modelirovanie mezhgalakticheskoi sredy Rasstoyaniya do cefeid po dannym infrakrasnoi interferometrii - I. Nablyudeniya semi galakticheskih cefeid na VINCI/VLTI Spektroskopiya [Fe/H] 98 zvezd s planetami: issledovanie veroyatnosti obrazovaniya planet Novye planetarnye tumannosti v severnoi chasti galakticheskoi ploskosti Ochen' uedinennye galaktiki rannih tipov Model' samogravitiruyushego ekscentrichnogo diska dlya ob'yasneniya dvoinogo yadra v M31 Modelirovanie krupnomasshtabnoi struktury v novom tysyacheletii Evolyuciya i nukleosintez v pervichnyh zvezdah maloi massy Galaktiki s emissionnymi liniyami na z = 6.5 FU Orionis: dvoinaya zvezda? Teoriya dzhetov, porozhdaemyh magnitnymi diskami Iz razdela physics Kosmicheskie luchi i evolyuciya zemnogo klimata na protyazhenii poslednih 4.6 milliardov let Vvedenie v statisticheskie voprosy fiziki chastic Astronomiya i padenie Vavilona 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 sš2001šg. Obsudit' na forume Scientific.RU Obsudit' na forume Zvezdocheta Avtory proekta Sergei Popov Mihail Prohorov Postav'te u sebya nashu knopku! Proekt razmeshen na saitah: Vy mozhet takzhe razmestit' na svoem saite nashu lentu obzorov Novostnye lenty Novosti astronomii ot PRAO Tekushie otkrytiya v FECh Novosti kosmonavtiki Novosti ot UFN Informnauka Perst Podpiska na rassylku obzorov na Subscribe.Ru Druzhestvennaya rassylka "Okno vo Vselennuyu"

Obzory preprintov astro-ph Vypusk N61 astro-ph za 16 - 30 noyabrya 2003 goda: izbrannye stat'i Referaty otdel'nyh statei miniobzor astro-ph/0311330 Obzor teorii neszhimaemoi MGD turbulentnosti (A review of the theory of incompressible MHD turbulence) Authors: Benjamin D. G. Chandran Comments: 12 pages, 7 figures. To appear in the proceedings of the International Workshop on magnetic fields and star formation: theory versus observations. Madrid, April, 2003 Nebol'shoi obzor po MGD turbulentnosti neszhimaemoi sredy. Yasno, chto bez mnozhestva formul v takom sluchae ne oboitis', no avtor dostatochno horosho proillyustriroval svoi obzor, sdelav ego tem samym dovol'no dostupnym. V etom vypuske est' rabota na blizkuyu temu: astro-ph/0311372 A. Lazarian and J. Cho Osnovnye svoistva szhimaemoi MGD-turbulentnosti: v prilozhenii k molekulyarnym oblakam (Basic Properties of Compressible MHD Turbulence: Implications for Molecular Clouds) astro-ph/0311334 Ogranicheniya na variacii G po dannym o nukleosinteze (A New Nucleosynthesis Constraint on the Variation of G) Authors: Craig J. Copi, Adam N. Davis, Lawrence M. Krauss Comments: 3 pages revtex including 1 figure Astrofizicheskie dannye pozvolyayut (model'no zavisimym obrazom) davat' ogranicheniya na izmeneniya fundamental'nyh konstant. V tom chisle i na ogranichenie gravitacionnoi postoyannoi. Osnovyvayas' na dannyh po pervichnomu deiteriyu, avtory pokazyvayut, chto otnoshenie gravitacionnoi postoyannoi vo vremya pervichnogo nukleosinteza k ee znacheniyu v nashi dni sostavlyaet ot 1.21 do 0.85 (so srednim znachenie 1.01) na urovne dostovernosti 68.3%. astro-ph/0311337 Geneticheskie anomalii na Tunguske i elektrofonnye meteory (Tunguska genetic anomaly and electrophonic meteors) Authors: Z.K. Silagadze Comments: 15 pages, LaTeX, A&A style Avtor ishodit iz dannyh o povyshenii chisla geneticheskih anomalii u rastenii, nasekomyh i t.d. v raione Tungusskogo sobytiya (kak v epicentre, tak i vdol' traektorii). Avtor vydvigaet gipotezu, chto faktorom, zapuskayushim molekulyarnye mehanizmy, privodyashie k mutaciyam, posluzhilo moshnoe nizkochastotnoe elektromagnitnoe izluchenie, ispuskavsheesya padayushim telom (otsyuda svyaz' s elektrofonnymi meteorami). Otmetim, chto stat'yu prosto interesno chitat' blagodarya shirokomu ohvatu soputstvuyushih fenomenov. astro-ph/0311340 "Razbitaya Gitara": evolyuciya golovnoi udarnoi volny neitronnoi zvezdy (Smashing the Guitar: An Evolving Neutron Star Bow Shock) Authors: S.Chatterjee, J.M.Cordes Comments: 4 pages, 3 figures, submitted to ApJL Tumannost' "Gitara" - znamenityi primer ob'ekta v kotorom nablyudaetsya yarkaya golovnaya udarnaya volna vozle molodoi neitronnoi zvezdy. Radiopul'sar B2224+65, svyazannyi s etoi tumannost', dvizhetsya v prostranstve s ochen' vysokoi (~800-1600škm/s; bol'shaya oshibka v skorosti svyazana s neopredelennost'yu rasstoyaniya do tumannosti - 1-2 kpk). Za sem' let mezhdu nablyudeniyami v tumannosti proizoshli opredelennye izmeneniya, kotorye obsuzhdayutsya v dannoi rabote. astro-ph/0311342 Razmery samyh dlinnyh filamentov vo Vselennoi (The Size of the Longest Filaments in the Universe) Authors: Somnath Bharadwaj et al. Comments: 15 pages, 4 figures Filamenty iskalis' po obzoru Las Campanas redshift survey (LCRS). Razmer samyh dlinnyh iz nih sostavlyaet 50-80 megaparsek. Bolee dlinnye struktury okazalis' statisticheski neznachimymi. obzor! astro-ph/0311343 Astrofizicheskie neitrinnye teleskopy (Astrophysical Neutrino Telescopes) Authors: A.B. McDonald et al. Comments: 28 pages, 31 figures, Invited review article submitted to Review of Scientific Instruments May 19, 2003 Bol'shoi ponyatnyi obzor po neitrinnym teleskopam (s kartinkami!). Rasskazano o vseh tipah detektorov (solnechnye neitrino, atmosfernye neitrino, neitrino vysokih energii). Kratko daetsya astrofizicheskaya motivaciya dlya raznyh issledovanii. Opisany kak pervye eksperimenty, tak i te, chto tol'ko planiruyutsya. Ochen' sovetuem vsem, kto hochet uznat' bol'she o neitrinnyh nablyudeniyah. obzor astro-ph/0311359 Bol'shaya radioastronomiya: sleduyushie 70 let (Large Radio Astronomy: next 70 Years Step) Authors: Yu.N.Parijskij Comments: 8 pages, 5 figures, JENAM-2003 conference Akademik Yurii Nikolaevich Pariiskii pytaetsya predskazat', chto mozhet proizoiti v radioastronomii v blizhaishie desyatiletiya: kakie instrumenty postroyat (nazemnye s ploshad'yu 109 m2, kosmicheskie, ob'edinyat vse chastnye televizionnye antenny), chto budut izuchat' (predely Vselennoi, proto ob'ekty, reliktovoe izluchenie i tela v Solnechnoi sisteme). "No vse eti predskazaniya sil'nee vsego zavisyat ot togo, kakoi deviz vyberet nasha civilizaciya: 'Vpered, k Cheloveku razumnomu' ili 'Nazad k obez'yanam'." astro-ph/0311364 Est' li ukazaniya v dannyh po sverhnovym na evolyuciyu temnoi energii? (Is there Supernova Evidence for Dark Energy Metamorphosis ?) Authors: Ujjaini Alam, Varun Sahni, Tarun Deep Saini, A. A. Starobinsky Comments: 14 pages, 13 figures Kratko sut': avtory polagayut, chto v dannyh po dalekim sverhnovym im udalos' naiti ukazanie na izmenenie uravneniya sostoyaniya temnoi energii. Obychno mnogie stavyat znak ravenstva mezhdu "temnoi energiei" i "kosmologicheskoi postoyannoi". Strogo zhe govorya, poslednee podrazumevaet neizmennost' vo vremeni. Esli zhe avtory dannoi raboty pravy, to temnaya enegiya izmenyaetsya s rasshireniem Vselennoi. Sm. takzhe rabotu Espana-Bonet et al. "Testing the running of the cosmological constant with Type Ia Supernovae at high z"(hep-ph/0311171). astro-ph/0311380 Q-LET - programmnyi kod dlya modelirovaniya gravitacionnogo linzirovaniya (Q-LET - Quick Lensing Estimation Tool - An application to SN2003es) Authors: Christofer Gunnarsson Comments: 16 pages, 5 figures. Submitted to JCAP. Q-LET - kod na yazyke FORTRAN 77, prednaznachennyi dlya bystrogo (uproshennogo) modelirovaniya effektov gravitacionnogo linzirovaniya na tochechnyh i protyazhennyh ob'ektah. Pol'zovatel' zadaet polozhenie galaktiki-linzy (koordinaty i krasnoe smeshenie, galaktika schitaetsya izotermicheskoi sferoi) otnositel'no linziruemogo istochnika. Programmnoe obespechenie dostupno po adresu . miniobzor astro-ph/0311406 Obzor rentgenovskih nablyudenii ostatkov sverhnovyh (A Review of X-ray Observations of Supernova Remnants) Authors: Jacco Vink Comments: 10 pages, 7 figures Poyavilos' srazu neskol'ko interesnyh rabot po rentgenovskim nablyudeniyam ostatkov sverhnovyh, no nachinat' chtenie bezuslovno nado s obzora. Sovremennye rentgenovskie dannye pozvolyayut poluchat' mnogo interesnoi informacii. V chastnosti, mozhno izuchat' spektry otdel'nyh chastei ostatkov, a znachit mozhno poluchat' raspredelenie himicheskih elementov po ostatku. Poskol'ku teoriya vzryva sverhnovoi eshe daleka ot zaversheniya, postol'ku eta informaciya vazhna i vostrebovana. Krome togo, ostatki sverhnovyh sluzhat uskoritelyami dlya kosmicheskih luchei, i zdes' takzhe mnogo nereshennyh voprosov. V obshem, kak obychno, progress nablyudatel'noi tehniki vlechet za soboi progress nashego ponimaniya astronomicheskih ob'ektov, i ostatki sverhnovyh zdes' horoshii primer. Sm. takzhe stat'i Year-scale morphological variation of the X-ray Crab Nebula; An X-ray study of the supernova remnant G18.95-1.1; Low frequency radio and X-ray properties of core-collapse supernovae; X-ray and radio prompt emission from a hypernova SN 2002ap. astro-ph/0311409 Izmenenie morfologii Krabovidnoi Tumannosti v rentgene na godovyh intervalah vremeni (Year-scale morphological variation of the X-ray Crab Nebula) Authors: K. Mori et al. Comments: 6 pages, 2 figures Kazhdye 1.7 goda Chandra provodit nablyudenii Krabovidnoi tumannosti. Za 3 goda posle zapuska observatorii takih nablyudenii sostoyalos' tri. V tumannosti (v ee detalyah) nablyudayutsya zametnye glazom izmeneniya. astro-ph/0311415 Pul'sar PSR J1909-3744 - dvoinoi millisekundnyi pul'sar s ochen' malym koefficientom zapolneniya (PSR J1909-3744, a Binary Millisecond Pulsar with a Very Small Duty Cycle) Authors: B.A.Jacoby et al. Comments: 12 pages, 4 figures. accepted ApJL Otkryt odin iz samyh korotkoperiodicheskih millisekundnyh pul'sarov: PSR J1909-3744. Ego osevoi period sostavlyaet vsego 2.95 ms, a orbital'nyi - 1.53 dnya. No samoe interesnoi svoistvo etogo pul'sara - ochen' uzkii impul's, shirina kotorogo sostavlyaet vsego 43 mikrosekundy, chto srazu delaet etot ob'ekt pervym kandidatom v razlichnye vysokotochnye eksperimenty. Na segodnyashnii den' dlya etogo pul'sara uzhe izmereno rasstoyaniya (po parallaksu) d=0.82 kpk i poperechnaya skorost' 140(+80/-40) km/s. astro-ph/0311432 Anizotropiya raspredeleniya sputnikov otnositel'no pervichnyh galaktik v obzore 2dFGRS: effekt Hol'mberga (Anisotropy in the distribution of satellites around primary galaxies in the 2dFGRS: the Holmberg effect) Authors: Laura Sales, Diego G. Lambas Comments: 5 pages, 4 figures, accepted in MNRAS Effekt Hol'mberga sostoit v tom, chto sputniki spiral'noi galaktiki izbegayut poyavlyat'sya v oblasti vblizi ee diska. Effekt byl otkryt dlya nashei Galaktiki, kogda v oblasti blizhe 30o ot diska bylo obnaruzheno 45 sputnikov, a na bol'shih udaleniyah - 173 iz 218 togda izvestnyh. Teper' etot effekt obnaruzhen dlya spiral'nyh galaktik kataloga 2dFGRS, prichem deistvie etogo effekta prostiraetsya na rasstoyanie do 500 kpk. miniobzor! astro-ph/0311435 Nereshennye problemy v kosmologii (Open Problems in Cosmology) Authors: P. J. E. Peebles Comments: Contribution to TAUP 2003, Seattle, September, 2003; five pages Polupopulyarnoe korotkoe esse na temu stoyashih pered kosmologiei problem. Pibls vydelyaet shest' punktov, rabota nad kotorymi, po ego mneniyu, mozhet privesti k sushestvennomu prodvizheniyu v nashem ponimanii togo, kak ustroena Vselennaya: 1. Izuchenie gravitacii. 2. Nablyudatel'nye dannye po kosmologicheskoi postoyannoi. 3. Fizika kosmologicheskoi postoyannoi. 4. Analiz nekotoryh "sovpadenii". 5. Fizika temnoi materii. 6. Fizika ochen' rannei Vselennoi Na samom dele stoit prochitat' stat'yu, chtoby ponyat', chto stoit za etimi pyat'yu punktami (nash perevod zdes' ne ochen' udachen, t.k. ne otrazhaet vseh postavlennyh v kazhdom punkte problem). gr-qc/0311055 Fenomenologiya kvantovoi gravitacii, lorenc-invariantnost' i diskretnost' (Quantum Gravity Phenomenology, Lorentz Invariance and Discreteness) Authors: Fay Dowker, Joe Henson, Rafael D. Sorkin Comments: 12 pages Avtory pokazyvayut, chto diskretnost' prostranstva-vremeni ne obyazatel'no vlechet za soboi narushenie lokal'noi lorenc-invariantnosti. Oni obsuzhdayut vozmozhnye nablyudatel'nye testy, i, v chastnosti, prihodyat k vyvodu, chto est' nadezhda razlichit' razlichnye teorii, t.k. v nekotoryh iz nih takoe narushenie vse-taki neizbezhno. miniobzor astro-ph/0311449 Eshe odno desyatiletie (astro)fiziki strannogo veshestva (Another Decade of Strange Quark Matter (ASTRO) Physics) Authors: J. E. Horvath, G. Lugones Comments: 13 pages Obzor izucheniya kvarkovogo (strannogo) veshestva v 1991-2001 gg. s uporom na astrofiziku (t.e. na strannye zvezdy). Daetsya ochen' horoshee vvedenie v sut' dela. Formul, na udivlenie, ni odnoi. Vsem rekomenduem. astro-ph/0311464 O kritike Mahom N'yutona i Kopernika (On Mach's critique of Newton and Copernicus) Authors: Herbert I. Hartman, Charles Nissim-Sabat Comments: 19 pages, Am.J.Phys. 71, 1163 (2003) V nachale XX veka Mah vyskazal gipotezu o prirode inercii, kotoraya privlekaet vnimanie i vyzyvaet diskussii do sih por. Drugie ego idei menee izvestny, no gipotezy ne menee interesny. obzor astro-ph/0311466 Kosmicheskie luchi sverhvysokih energii (Ultra High Energy Cosmic Rays) Authors: R.J. Protheroe and R.W. Clay Comments: 44 pages, 17 figures. Invited review, PASA, in press Eshe odin neplohoi obzor po kosmicheskim lucham sverhvysokih energii. (~1018šeV). ideya! astro-ph/0311484 Paradigma slivayushihsya belyh karlikov dlya Sverhnovyh i gamma-vspleskov (A White Dwarf Merger Paradigm for Supernovae and Gamma-Ray Bursts) Authors: John Middleditch Comments: 11 pages, 0 figures Ochen' krasivaya ideya! Sverhnovye tipa I i II razlichayut po nalichiyu (v tipe II) i otsutstviyu (v tipe I) v ih spektrah linii vodoroda. Teoriya evolyucii zvezd govorit nam, chto sverhnovye tipa II eto massivnye zvezdy s bogatoi vodorodom obolochkoi, ih vzryvy svyazany s kollapsom yadra zvezdy. So sverhnovymi tipa I situaciya bolee slozhna - ih podrazdelyayut na tri podklassa: sverhnovye tipa Ib i Ic - tozhe massivnye zvezdy, no lishivshiesya vodorodnoi obolochki. A vot u sverhnovyh Ia fizika sovsem drugaya - eto dva slivayushihsya belyh karlika (samaya populyarnaya model'). Poetomu otsutstvie linii vodoroda v spektrah sverhnovyh tipa Ia poluchaet estestvennoe ob'yasnenie. Sverhnovaya 1987a, vspyhnuvshaya v Magellanovyh Oblakah, otnositsya k tipu II, a zagadochnye gamma-vspleski v poslednee vremya svyazyvayut so vzryvami sverhnovyh tipa Ic. Vsegda li verna ukazannaya kartina? Dzhon Middledich utverzhdaet, chto net. Sliyanie dvuh belyh karlikov mozhet vyglyadet', kak vzryv sverhnovoi II tipa, esli belye karliki - dvoinoe yadro zvezdy, okruzhennoe obolochkoi, kotoraya i porozhdaet linii vodoroda. (Podobnuyu model' sverhnovoi s dvoinym yadrom razrabatyvala gruppa V.S.Imshennika iz ITEF, no v toi modeli dvoinoe yadro bylo neitronnym.) Podobnoi "zamaskirovannoi" sverhnovoi mogla byt' SN 1987a. Togda mozhet byt' i gamma-vspleski - porozhdenie slivayushihsya belyh karlikov? obzor astro-ph/0311489 Kosmicheskii i galakticheskii fon neitrino ot termoyadernyh istochnikov (Cosmic and Galactic Neutrino Backgrounds from Thermonuclear Sources) Authors: Cristiano Porciani et al. Comments: 30 pages, 8 figures Otkuda, v osnovnom, prihodyat neitrino, rodivshiesya v termoyadernyh reakciyah? C z~2. Krome togo v obzore rassmotreny sleduyushie voprosy: kakov etot fon (nablyudatel'nye dannye); chto dayut istochniki v nashei Galaktike; v drugih galaktikah. astro-ph/0311495 Uskorennoe rasshirenie Vselennoi ili smeshivanie aksionov i fotonov (Cosmic acceleration vs axion-photon mixing) Authors: Bruce A. Bassett Comments: 4 pages, 5 colour figures Ochen' prostaya i krasivaya ideya: my nablyudaem dalekie sverhnovye tipa Ia i vidim, chto oni neskol'ko slabee, chem dolzhny byli by byt' vo Vselennoi rasshiryayusheisya soglasno modelyam Fridmana. I my delaem vyvod, chto Vselennaya rasshiryaetsya uskorenno. No snizhenie svetimosti mozhet byt' svyazano s tem, chto chast' fotonov po puti k nam prevratilis' v drugie chasticy - aksiony. (Primerno takoe zhe yavlenie privodilo k nedostatku neitrino ot Solnca na Zemle i zakonchilos' otkrytiem smeshivaniya razlichnyh sortov neitrino.) Strogim dokazatel'stvom smeshivaniya mozhet stat' obnaruzhenie sistematicheskoi raznicy mezhdu fotometricheskimi rasstoyaniyami (opredelyaemymi po svetimosti dalekih ob'ektov) i uglovymi rasstoyaniyami (opredelyaemymi po uglovomu diametru dalekogo ob'ekta). [Zamechanie: Veroyatno eta krasivaya ideya vse-taki ne verna, poskol'ku uskorenie rasshireniya Vselennoi nezavisimo podtverzhdaetsya i po chito kosmologicheskim dannym.] astro-ph/0311498 "Zarubki" na profilyah yarkih pul'sarov ("Notches" in the Profiles of Bright Pulsars) Authors: M.A.McLaughlin, J.M.Rankin Comments: 5 pages, 9 figures, submitted to MNRAS. See also astro-ph/0311467. Na srednih profilyah uzhe treh radiopul'sarov obnaruzheny detali napominayushie "zarubki" (ili "zanozy"). Eto pul'sary J0437-4715, B1929+10 i novyi ob'ekt (kotoromu posvyashena stat'ya) B0950+08. Ranee takie detali ne byli izvestny potomu, chto nablyudeniya s neobhodimoi dlya ih obnaruzheniya tochnost'yu nachaty tol'ko nedavno i detali obnaruzheny u samyh yarkih pul'sarov. (Pri tom, chto nablyudeniya velis' na 300-metrovoi antenne v Aresibo.) Vid etoi detali u pul'sara B0950+08 na chastote 430 MGc pokazan nizhe. astro-ph/0311500 Magnitnye akkrecionnye potoki v Kerrovskoi metrike (Magnetically Driven Accretion Flows in the Kerr Metric II: Structure of the Magnetic Field) Authors: Shigenobu Hirose et al. Comments: 10 pages + 14 figures, submitted to ApJ. Avtory rasschitali kak zakruchivayutsya magnitnye polya, vmorozhennoe v padayushee na vrashayushuyusya chernuyu dyru veshestvo. Variant stat'i s kartinkami vysokogo razresheniya mozhno posmotret' na saite avtorov. astro-ph/0311508 Vosstanovlenie izobrazhenii gravitacionnyh linz regulyariziruyushimi algoritmami (Reconstructing images of gravitational lenses with regularizing algorithms) Authors: E. Koptelova et al. Comments: to appear in proceedings of the meeting on 'Gravitational Lensing : A unique Tool for Cosmology' held in Aussois, France, 5-11 January 2003, 9 pages with 6 figures Avtory opisyvayut metodiku obrabotki izobrazhenii, dlya polucheniya kachestvennyh dannyh po gravitacionnym linzam. Sama stat'ya dovl'no tehnicheskaya, no budet interesna tem, kto zanimaetsya obrabotkoi izobrazhenii. Rezul'tat obrabotki izobrazheniya kresta Einshteina, poluchennogo na 1.5-metrovom teleskope AZT-22 na Maidanake. astro-ph/0311512 Pryamaya podpitka central'noi chernoi dyry Galaktiki zvezdnymi vetrami blizhaishih zvezd (Direct Feeding of the Black Hole at the Galactic Center with Radial Gas Streams from Close-In Stellar Winds) Authors: Abraham Loeb (Harvard Univ.) Comments: 4 pages, 2 figures, ApJL, submitted Avtor pokazal, chto dlya ob'yasneniya ochen' nizkoi nablyudaemoi svetimosti central'noi chernoi dyry nashei Galaktiki (ob'ekta Sgr A*) dostatochno chasti zvezdnogo vetra ot massivnyh blizhaishih k chernoi dyre zvezd. Disk vokrug chernoi dyry ne obrazuetsya - zahvatyvaetsya tol'ko veshestvo dvizhusheesya pochti radial'no i zahvatyvaemoe chernoi dyroi. obzor astro-ph/0311518 Modelirovanie mezhgalakticheskoi sredy (Simulations of the Intergalactic Medium) Authors: Romeel Dav\'e Comments: 15 pages, Invited review for IAU 216 "Maps of the Cosmos" Horoshii bogato proillyustrirovannyi obzor po mezhgalakticheskoi srede. Mnogo istoricheskih otstuplenii i fenomenologii, chto konechno zhe oblegchaet chtenie i ponimanie. V poslednie gody poyavlyayutsya novye interesnye eksperimental'nye dannye po mezhgalakticheskoi srede i ee evolyucii, a eto tesneishim obrazom svyazano s obrazovaniem struktur vo Vselennoi, s poyavleniem pervyh zvezd i kvazarov ... T.e. s samymi "goryachimi" temami v sovremennoi vnegalakticheskoi astronomii. Poetomu takie obzory seichas bolee chem aktual'ny. astro-ph/0311525 Rasstoyaniya do cefeid po dannym infrakrasnoi interferometrii - I. Nablyudeniya semi galakticheskih cefeid na VINCI/VLTI (Cepheid distances from infrared long-baseline interferometry - I. VINCI/VLTI observations of seven Galactic Cepheids) Authors: P. Kervella et al. Comments: 16 pages, 12 figures, submitted to Astronomy & Astrophysics Opredeleny rasstoyaniya do semi galakticheskih blizkih cefeid (vse eto zvezdy, vidimye nevooruzhennym glazom). Ispol'zovalas' interesnaya metodika. Vo-pervyh dlya vseh semi zvezd byl neposredstvenno izmeren uglovoi diametr, dlya chetyreh dazhe udalos' neposredstvenno izmerit' pul'sacii. Teper', znaya kak izmenyaetsya uglovoi diametr mozhno opredelit' rasstoyanie modificirovannym metodom Baade-Vesselinka. astro-ph/0311541 Spektroskopiya [Fe/H] 98 zvezd s planetami: issledovanie veroyatnosti obrazovaniya planet (Spectroscopic [Fe/H] for 98 extra-solar planet-host stars: Exploring the probability of planet formation) Authors: N. C. Santos et al. Comments: 15 pages, 9 figures, Accepted for publication in A&A Nekotoroe vremya nazad zapodozrili, chto veroyatnost' sushestvovaniya planetnoi sistemy sil'no zavisit ot metallichnosti zvezdy (t.e. ot soderzhaniya elementov tyazhelee geliya). V dannoi rabote avtory issleduyut etot vopros na ochen' bol'shoi vyborke zvezd. Osnovnym vyvodom raboty yavlyaetsya podtverzhdenie sil'noi zavisimosti veroyatnosti obrazovaniya planetnoi sistemy ot metallichnosti. astro-ph/0311552 Novye planetarnye tumannosti v severnoi chasti galakticheskoi ploskosti (New Planetary Nebulae in the Northern Galactic Plane) Authors: Panayotis Boumis, Myfanwy Bryce Comments: 4 pages, 1 figure; to appear in Asymmetric Planetary Nebulae III, eds. M. Meixner, J. Kastner, N.Soker and B. Balick (ASP Conf. Ser.) Opisyvaetsya poisk novyh planetarnyh tumannostei v baldzhe Galaktiki. Otkryto mnogo novyh ob'ektov. Bol'shaya chast' planetarnyh tumannostei (60 procentov) imeyut krugluyu formu, 31 procent - ellipticheskuyu, 9 - bipolyarnuyu (sm. risunok). Raznye morfologicheskie klassy planetarnyh tumannostei. astro-ph/0311572 Ochen' uedinennye galaktiki rannih tipov (Very Isolated Early-Type Galaxies) Authors: J. T. Stocke et al. Comments: 19 pages, 3 figures; AJ in press Napomnim, chto galaktiki rannih tipov - eto ellipticheskie (E) i linzovidnye (S0). Takie ob'ekty vstrechayutsya kak v gruppah i skopleniyah, tak i po odinochke. Avtory issledovali okolo sotni takih uedinennyh ob'ektov (65 ellipticheskih i 37 linzovidnyh). (O linzovidnyh galaktikah sm. What are S0 (0) Galaxies?.) Osnovnoi vopros, motivirovavshii issledovanie, sostoit v ponimanii processa obrazovaniya galaktik etih tipov. Variantov tut dva: oni ili obrazuyutsya srazu kak est', ili poyavlyayutsya v rezul'tate sliyaniya neskol'kih bolee melkih galaktik (krome togo, mogut byt' vazhny takie processy, kak vymetanie gaza iz galaktik v skopleniyah). Poetomu vazhno sravnit' ob'ekty v skopleniyah (gde ochevidno byli sliyaniya i vymetanie gaza pri dvizhenii galaktiki skvoz' sredu skopleniya) i odinochnye galaktiki. V skopleniyah S0-galaktik v 4 raza bol'she, chem E-galaktik. Sredi odinochnyh ob'ektov kartina obratnaya: ellipticheskih galaktik v dva raza bol'she. Eto navodit na mysl', chto linzovidnye galaktiki obrazuyutsya v osnovnom putem vzaimodeistviya v skopleniyah, a vot process rozhdeniya ellipticheskoi galaktiki v skoplenii i vne ego idet primerno odinakovo. V dal'neishem neobhodimo provodit' rentgenovskie nablyudeniya odinochnyh ellipticheskih galaktik. Poka takih dannyh nedostatochno (avtory opisyvayut rezul'taty vsego po odnoi galaktike). Vozmozhno, odinochnye ellipticheskie galaktiki voznikli v rezul'tate polnogo sliyaniya chlenov nebol'shoi gruppy. astro-ph/0311573 Model' samogravitiruyushego ekscentrichnogo diska dlya ob'yasneniya dvoinogo yadra v M31 (Self-Gravitating Eccentric Disk Models for the Double Nucleus of M31) Authors: Robert M. Salow, Thomas S. Statler Comments: 54 pages, submitted to ApJ U Tumannosti Andromedy (M31) nablyudaetsya strannoe dvoinoe yadro - vtoroi ego komponent ochen' malen'kii, on slabo svetitsya i ne okazyvaet vliyaniya na dvizhenie okruzhayushih zvezd. Avtory dannoi stat'i polagayut, chto eto ne vtoraya chernaya dyra, a "goryachee pyatno" v diske vokrug sverhmassivnoi chernoi dyry (osnovnogo komponenta yadra). obzor astro-ph/0311575 Modelirovanie krupnomasshtabnoi struktury v novom tysyacheletii (Simulations of Large-Scale Structure in the New Millennium) Authors: Yasushi Suto Comments: 15 pages, Invited review for IAU symposium 216 "Maps of the Cosmos" Napomnim, chto dannye po krupnomasshtabnoi strukture - eto odin iz chetyreh kitov, na kotoryh pokoitsya sovremennaya nablyudatel'naya kosmologiya. S teoreticheskoi tochki zreniya struktura issleduetsya metodom chislennogo modelirovaniya. Avtor obsuzhdaet puti razvitiya etogo napravleniya v blizhaishie gody. Vazhnym zdes' okazyvaetsya ne tol'ko i ne stol'ko uvelichenie moshnosti komp'yuterov, a novye nablyudatel'nye dannye, kotorye pozvolyayut tochnee zadavat' nachal'nye usloviya. astro-ph/0311580 Evolyuciya i nukleosintez v pervichnyh zvezdah maloi massy (Evolution and nucleosynthesis of primordial low mass stars) Authors: I. Picardi et al. Otkrytie malomassivnoi zvezdy "pochti pervogo pokoleniya" HE0107-5240 vyzvalo interes k evolyucii i hodu yadernyh reakcii v podobnyh zvezdah s ochen' bednym himicheskim sostavom (Z=10-6). Imenno etomu voprosu posvyashena dannaya stat'ya. astro-ph/0311603 Galaktiki s emissionnymi liniyami na z = 6.5 (Emission line galaxies at z = 6.5) Authors: Jaron Kurk et al. Comments: 2 pages, no figures, to be published in "Multiwavelength mapping of galaxy formation and evolution", proceedings of a conference held in Venice, October 13-16 2003 Korotkii otchet o poiske galaktik na bol'shih krasnyh smesheniyah. Po nablyudeniyam na VLT avtory ishut emissionnye linii, sootvetstvuyushie krasnomu smesheniyu poryadka 6.5. Poka naideno tri neplohih kandidata. astro-ph/0311606 FU Oriona dvoinaya zvezda? (FU Orionis: A Binary Star?) Authors: Hongchi Wang et al Comments: 10 pages, 2 figures, to be published in ApJ Letters "V 1936 g. proizoshlo zamechatel'noe sobytie: slabaya zvezdochka 16-i zvezdnoi velichiny za neskol'ko mesyacev plavno uvelichila svoi blesk primerno v 150 raz i s teh por nablyudaetsya kak zvezda 10-i zvezdnoi velichiny, ne izmenyaya bleska. Ee spektr harakteren dlya sverhgiganta spektral'nogo klassa F5 ili G3. Takoe vozgoranie zvezdy - sobytie samo po sebe vazhnoe. Odnako v dannom sluchae ego znachenie usilivaetsya. Odnovremenno so zvezdoi poyavilas' nahodyashayasya ot nee na nekotorom rasstoyanii diffuznaya svetlaya tumannost', kotoraya do teh por byla nevidima. Svoei vspyshkoi zvezda osvetila tumannost'. Takim obrazom, ne mozhet byt' somneniya v tom, chto zvezda razgorelas', a ne vyshla iz-za tumannogo oblaka, skryvavshego ee ot nablyudatelya. Zvezda poluchila nazvanie FU Oriona, a podobnye ei zvezdy, kotoryh teper' otkryto eshe dve [Red.: segodnya uzhe bol'she.], nazvany fuorami." V.P.Cesevich "Peremennye zvezdy i ih nablyudenie", 1980. Nablyudeniya avtorov na 3.6 metrovom teleskope s adaptivnoi optikoi pokazali, chto slabaya krasnaya zvezdochka, raspolozhennaya na rasstoyanii 0.5" yavlyaetsya, po-vidimomu, kompan'onom peremennoi zvezdy FUšOriona. (Nablyudeniya velis' v blizhnem IK-diapazone v kotorom kompan'on na chetyre zvezdnye velichiny slabee osnovnoi zvezdy.) Takim obrazom, vozmozhno prototip celogo klassa peremennyh zvezd okazalsya dvoinym. Odnako, okonchatel'noi yasnosti zdes' poka net. obzor astro-ph/0311621 Teoriya dzhetov, porozhdaemyh magnitnymi diskami (Theory of magnetized accretion discs driving jets) Authors: Jonathan Ferreira Comments: 40 pages, 6 figures, EDP Sciences, p.229-277, 2002 Podrobnaya analiticheskaya(!) teoriya togo, kak akkrecionnye diski s magnitnym polem porozhdayut dzhety. Rassmotreny sleduyushie voprosy: magnitnye akkrecionno-ezhekcionnye struktury; magnitnye dzhety; dzhety, sozdannye diskami; avtomodel'nye resheniya; "holodnye" i "teplye" konfiguracii; nablyudatel'nye predskazaniya. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0311087 Kosmicheskie luchi i evolyuciya zemnogo klimata na protyazhenii poslednih 4.6 milliardov let (Cosmic Rays and the Evolution of Earths Climate During the Last 4.6 Billion Years) Authors: Henrik Svensmark Comments: 13 pages, 4 figures, submitted to PRL My uzhe pisali o svyazi zemnogo klimata s kosmicheskimi lucheami, i dazhe vyskazyvali mysl' o svyazi fluktuacii potoka kosmicheskih luchei s poluchayushimisya v modelyah fluktuaciyami tempa zvezdoobrazovaniya v okrestnostyah Solnca. Vot eshe odna rabota po toi zhe tematike. Avtor modeliruet izmeneniya potoka kosmicheskih luchei na ochen' bol'shom vremennom masshtabe, i sravnivaet poluchennye rezul'taty s dannymi po paleoklimatu. Otmetim, chto dannye po zvezdoobrazovaniyu v okrestnostyah Solnca ispol'zovany v ramkah ochen' prostoi modeli. Bolee detal'no avtor modeliruet evolyuciyu parametrov geliosfery za schet evolyucii Solnca. physics/0311105 Vvedenie v statisticheskie voprosy fiziki chastic (Introduction to Statistical Issues in Particle Physics) Authors: Roger Barlow Comments: Talk MOAT002 at PHYSTAT2003 Conference, Stanford, September 2003. 8 pages, 4 figures Na nash vzglyad ochen' interesnoe i ponyatnoe vvedenie v nekotorye kazalos' by tehnicheskie, no po suti ochen' vazhnye voprosy fiziki chastic. Navernoe, nazvanie odnogo iz punktov stat'i - "kogda zayavlyat' ob otkrytii?" - horosho illyustriruet, chemu posvyashena eta zametka. physics/0311114 Astronomiya i padenie Vavilona (Astronomy and the Fall of Babylon) Authors: V.G.Gurzadyan Comments: 13 pages, Sky & Telescope, v.100, No.1 (July), pp.40-45, 2000 Eto horosho proillyustrirovannaya stat'ya, napechatannaya v 2000 v Sky & Telescope. Vahe Gurzadyan (ne putat' s Grigorom Gurzadyanom) - horosho izvestnyi astrofizik, zanimavshiisya (i zanimayushiisya) ochen' raznymi oblastyami astronomii. Ne oboshel on svoim vnimaniem i istoriyu astronomii (ranee ego raboty po etoi tematike uzhe poyavlyalis' v Arhive). V stat'e podrobno, no populyarno, opisyvaetsya, kak proizvodilis' datirovki astronomicheskih sobytii, opisannyh na glinyanyh tablichkah. Vernut'sya k nachalu stranicy

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