The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N99) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 04.03.2005. Mira v rentgene 03.03.2005. Vspyhivayushii radioistochnik 11.10.2004. N'yuton smotrit na M31 05.10.2004. Million sekund Kassiopei A 18.09.2004. Rozhdenie lacertidy Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0503050 Rentgenovskaya vspyshka Miry A astro-ph/0503052 Moshnyi vspyhivayushii radioistochnik v napravlenii galakticheskogo centra astro-ph/0503058 Geometricheskoe rasstoyanie i sobstvennoe dvizhenie galaktiki v Treugol'nike (M33) Sobytie nedeli Gans Bete Otdel'nye stat'i Gamma nablyudeniya gigantskoi vspyshki magnitara SGR 1806-20 Modelirovanie populyacii odinochnyh neitronnyh zvezd, evolyucioniruyushih s izlucheniem gravitacionnyh voln Magnitnye polya neitronnyh zvezd: teoreticheskii obzor Rentgenovskaya vspyshka Miry A Moshnyi vspyhivayushii radioistochnik v napravlenii galakticheskogo centra Geometricheskoe rasstoyanie i sobstvennoe dvizhenie galaktiki v Treugol'nike (M33) Rentgenovskaya observatoriya Chandra: pyat' let raboty Samyi glubokii poisk sverhnovyh po Habblovskim ul'traglubokim polyam Ispol'zovanie radioizlucheniya dlya registracii odinochnyh i "molchashih" akkreciruyushih chernyh dyr Ogranicheniya na rasstoyanie do SGR 1806-20 po poglosheniyu neitral'nym vodorodom Verhnii predel na massu zvezd Zvezdy temnoi energii Radioizluchenie, svyazannoe s UMI v Holmberg II Fenomenologicheskaya kvantovaya gravitaciya Iz razdela physics Perevod popytki Einshteina postroit' Edinuyu Teoriyu Polya Izobrazheniya v novogodnih sharikah 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 2001-2003 gg. 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 Novosti kosmonavtiki Novosti ot UFN Astronomer.Ru Informnauka Researcher@ Grani.Ru Perst Podpiska na rassylku obzorov na Subscribe.Ru Druzhestvennye rassylki: "Astronomiya segodnya" "Astronomiya dlya shkol'nikov" "Okno vo Vselennuyu" Spisok astrorassylok

Obzory preprintov astro-ph Vypusk N100 astro-ph za 01 - 10 marta 2005 goda: izbrannye stat'i Sobytie nedeli Umer Gans Bete 6 marta na 99-m godu zhizni umer Velikii fizik i astrofizik Gans Bete. V astrofizike on izvesten prezhde vsego blagodarya svoim rabotam po yadernym reakciyam v zvezdah. Navernoe, ne stoit grustit'. Chelovek smog "obmanut'" vremya i prozhit' prakticheski tri polnocennye zhizni: kak fizik; kak konsul'tant, rukovoditel' i fizik, zanimayushiisya voennymi prilozheniyami (napomnim, on byl rukovoditelem otdela v Manhettenskom proekte vo vremya sozdaniya pervoi atomnoi bomby, imenno on posle voiny priglasil Feinmana v Kornell); i kak astrofizik. V 2003 g. byli opublikovana korotkaya stat'ya s astrofizicheskimi vospominaniyami Bete. Ee mozhno skachat' zdes'. Bete prodolzhal rabotat' vplot' do samogo poslednego vremeni. Ego poslednie (i kak raz astrofizicheskie) original'nye stat'i datirovany 2002 godom! Zadumaites', emu bylo 95 let! Mozhno lish' "beloi zavist'yu" pozavidovat' takoi dolgoi produktivnoi plodotvornoi zhizni, i pomyanut' dobrym slovom Velikogo Uchenogo. Biografiyu Bete mozhno naiti na saite Kornell'skogo universiteta. Referaty otdel'nyh statei astro-ph/0503030 Gamma nablyudeniya gigantskoi vspyshki magnitara SGR 1806-20 (Gamma-Ray Observations of a Giant Flare from The Magnetar SGR 1806-20) Authors: D. M. Palmer et al. Comments: Submitted to Nature 2005-02-02, revised 2005-03-01. 21 pp, incl. 6 figures Predstavleny rezul'taty nablyudenii na sputnike Swift. Nichego principial'no novogo v sravnenii s drugimi rabotami zdes' ne dobavleno. Vazhno, chto dannye raznyh eksperimentov sovpadayut. Vspyshka po dannym Swift V pyatnicu 11 chisla v GAISh budet nebol'shoi doklad, posvyashennoi vspyshke SGR 1806-20. Prezentaciya v formate PowerPoint budet dostupna zdes' astro-ph/0503046 Modelirovanie populyacii odinochnyh neitronnyh zvezd, evolyucioniruyushih s izlucheniem gravitacionnyh voln (Simulation of a population of isolated neutron stars evolving through the emission of gravitational waves) Authors: C. Palomba Comments: 31 pages, 17 figures; accepted in MNRAS Eshe odin primer interesnogo populyacionnogo sinteza odinochnyh neitronnyh zvezd. Esli neitronnye zvezdy obladayut elliptichnost'yu, to oni budut istochnikami gravitacionnyh voln. Bolee togo, esli sushestvuet podklass neitronnyh zvezd s malen'kim magnitnym polem i zametnoi asimmetriei formy, to ih evolyuciya budet opredelyat'sya izlucheniem gravvoln. Imenno takim ob'ektam i posvyashena stat'ya. Podcherknem, sushestvovanie takogo podklassa kompaktnyh ob'ektov yavlyaetsya gipotezoi. Po vsei vidimosti vvod v stroi detektora gravitacionnyh voln VIRGO pozvolit ili otkryt' ih, ili nalozhit' sushestvennye ogranicheniya na ih kolichestvo ili parametry. miniobzor astro-ph/0503047 Magnitnye polya neitronnyh zvezd: teoreticheskii obzor (Magnetic fields in neutron stars: A theoretical perspective) Authors: Andreas Reisenegger et al. Comments: Invited review, conference "Magnetic Fields in the Universe: from Laboratory and Stars to Primordial Structures", Angra dos Reis, Brazil, Nov 28 - Dec 3, 2004, eds. E. M. de Gouveia dal Pino, A. Lazarian, & G. Lugones, to be published in the AIP COnference Proceedings. 11 pages, no figures Nebol'shoi obzor, posvyashennyi proishozhdeniyu i evolyucii magnitnogo polya neitronnyh zvezd. astro-ph/0503050 Rentgenovskaya vspyshka Miry A (X-ray Outburst in Mira A) Authors: M. Karovska et al. Comments: 7 pages, 3 figures, to be published in the Astrophysical Journal Letters Izvestnaya peremennaya Mira (omikron) Kita yavlyaetsya simbioticheskoi sistemoi, sostoyashei iz krasnogo giganta (tochnee, zvezdy na asimptoticheskoi vetvi gigantov) i belogo karlika. Avtoram stat'i s pomosh'yu nablyudenii na sputnike Chandra vpervye udalos' zaregistrirovat' gigantskuyu rentgenovskuyu vspyshku ot Miry, a krome togo, udalos' vydelit' (razreshit') izobrazheniya kazhdoi iz zvezd pary. astro-ph/0503052 Moshnyi vspyhivayushii radioistochnik v napravlenii galakticheskogo centra (A powerful bursting radio source towards the Galactic Centre) Authors: S. D. Hyman et al. Comments: 16 pages including 3 figures. Nature 434 (2005) 50-52 Nablyudeniya tranzientnyh (vspyhivayushih) istochnikov v radiodiapazone chrezvychaino trudno provodit'. Svyazano eto s tehnicheskimi osobennostyami nablyudenii na radioteleskopah. Radioteleskop ne "schitaet kvanty" kak pribory, rabotayushie na bolee korotkih volnah. Obrabotka signala gorazdo slozhnee, i vsegda svyazana s nakopleniem i vydeleniem bolee-menee postoyannyh istochnikov nad urovnem shumov. Vspyhivayushie istochniki mozhno nablyudat' tol'ko na nebol'shih ploshadkah, chto oznachaet vozmozhnost' izucheniya radiovspyshek lish' ot uzhe izvestnyh istochnikov, na kotorye i navoditsya teleskop. Poiski tranzientov "v pole" do sih por chrezvychaino zatrudneny (podcherknem, rech' ne idet ob istochnikah tipa radiopul'sarov, kotorye postoyanno vspyhivayut, imeyutsya v vidu redkie, vozmozhno odinochnye, vspyshki). Poetomu chislo tranzientnyh radioistochnikov, otkrytyh po radionablyudeniyam po suti ravnyalos' nulyu. I vot - pervyi. GCRT J1745-3009 byl zaregistrirovan v 2002 g. v napravlenii na centr Galaktiki. Sobstvenno, imenno ego polozhenie sposobstvovalo ego otkrytiyu -- oblast' galakticheskogo centra aktivno nablyudaetsya. Rasstoyanie do istochnika neizvestno, no ego blizost' k centru Galaktiki navodit na mysl', chto tam on i nahoditsya (hotya, povtorim, tut est' effekt selekcii; imenno oblast' centra nablyudalas', otkryt' analogichnyi istochnik v drugom napravlenii menee veroyatno prosto iz-za nedostatka nablyudenii). Vspyshki, kotorye on proizvodit, ne pohozhi na aktivnost' drugih istochnikov. Poetomu avtory polagayut, chto eto mozhet byt' pervyi predstavitel' novogo klassa ob'ektov. Serii vspyshek dlitel'nost' okolo 10 minut proishodyat primerno kazhdye 1.27 chasa (tak chto vse-taki vspyshki ne super redkie). Oblast' centra Galaktiki plotno zaselena raznoobraznymi ob'ektami, poetomu ponyat' svyazan li GCRT J1745-3009 s kakim-to iz drugih ob'ektov (naprimer, s ostatkom sverhnovoi) zatrudnitel'no. Vspyshki istochnika GCRT J1745-3009 Skoree vsego nas zhdet potok spekulyacii o tom, chto zhe eto mozhet byt'. Period v 1.27 chasa navodit na mysli ob ochen' tesnoi dvoinoi sisteme, vklyuchayushei kompaktnyi zamagnichennyi ob'ekt. astro-ph/0503058 Geometricheskoe rasstoyanie i sobstvennoe dvizhenie galaktiki v Treugol'nike (M33) (The Geometric Distance and Proper Motion of the Triangulum Galaxy (M33)) Authors: A. Brunthaler et al. Comments: 14 pages, 4 figures; Published in Science, Vol. 307 (4 March 2005); Also available at http://www.jive.nl/~brunthal/pub.shtml Po nablyudeniyam mazernyh istochnikov na VLBA udalos' neposredstvenno opredelit' rasstoyanie do M33!!! Ono ravno 730 +/-168 kpk. Eto soglasuetsya s ocenkoi rasstoyaniya po cefeidam. Nekotoruyu diskussiyu ob etom rezul'tate mozhno naiti zdes'. miniobzor astro-ph/0503091 Rentgenovskaya observatoriya Chandra: pyat' let raboty (The Chandra X-Ray Observatory: Five Years of Operation) Authors: Martin C. Weisskopf Comments: 16 pages, 12 figures, to be published in Space Research Today V obzore rasskazyvaetsya ob osnovnyh rezul'tatah, poluchennyh na sputnike Chandra za pyat' proshedshih let. V stat'e, razumeetsya, mnogo kartinok, nekotorye iz kotoryh my skompillirovali nizhe. astro-ph/0503093 Samyi glubokii poisk sverhnovyh po Habblovskim ul'traglubokim polyam (The Deepest Supernova Search is Realized in the Hubble Ultra Deep Field Survey) Authors: Louis-Gregory Strolger, Adam G. Riess Comments: 24 pages (6 figures), submitted to the Astronomical Journal Ul'traglubokie snimki, poluchennye na Kosmicheskom teleskope, pozvolyayut iskat' sverhnovye na krasnyh smesheniyah do 2.2. Avtory predstavlyayut rezul'taty takih poiskov. Obnaruzheno chetyre sverhnovye, odnako vse oni nahodyatsya blizhe chem z=1.4. astro-ph/0503097 Ispol'zovanie radioizlucheniya dlya registracii odinochnyh i "molchashih" akkreciruyushih chernyh dyr (Using radio emission to detect isolated and quiescent accreting black holes) Authors: Thomas J. Maccarone Comments: 5 pages, 1 table, accepted to MNRAS Letter V Galaktike polnym polno chernyh dyr! Minimal'naya ocenka ih chisla sostavlyaet okolo 100 millionov. Tol'ko vot ochen' uzh nelegko obnaruzhit' ochen' chernuyu koshku v ochen' temnoi komnate, dazhe esli ona tam est'. Seichas dazhe rebenok vam skazhet, chto poiski chernoi koshki nuzhno vesti ne prosto glazami, a teplovizorom, t.e. nuzhno pravil'no vybrat' spektral'nyi diapazon (takih slov rebenok mozhet, pravda, i ne znat'). Tak zhe obstoit delo i s chernymi dyrami. Avtor stat'i polagaet, chto imenno radionablyudeniya, osobenno na budushei antenne LOFAR, smogut otkryt' dlya nas mnogoobrazie odinochnyh chernyh dyr. Avtor provodit ocenki obnaruzhimosti dlya razlichnyh tipov chernyh dyr. V sluchae obychnyh, proishodyashih iz massivnyh zvezd, mozhno ozhidat', chto LOFAR uvidit okolo 400 ob'ektov. Esli zhe rassmotret' vozmozhnost' registracii gipoteticheskih chernyh dyr promezhutochnyh mass, to LOFAR uvidit okolo treti procenta takih istochnikov (a imenno okolo 10, esli ih v Galaktike okolo 3000 shtuk). astro-ph/0503171 Ogranicheniya na rasstoyanie do SGR 1806-20 po poglosheniyu neitral'nym vodorodom (Constraints on the distance to SGR 1806-20 from HI absorption) Authors: N. M. McClure-Griffiths, B. M. Gaensler Comments: 3 pages, 1 embedded EPS figure, uses emulateapj.sty V nedavnei stat'e Kamerona s soavtorami byla vyskazana tochka zreniya, chto rasstoyanie do vspyhnuvshego v dekabre MPG sostavlyaet ne 15 kpk, kak eto prinyato schitat', a ot 6 do 9 kpk. Konechno, takoe ponizhenie rasstoyaniya ne menyaet nichego principial'no, tem ne menee vazhno razobrat'sya. V dannoi stat'e avtory rassmatrivayut ogranichenie na rasstoyanie do SGR 1806-20 po poglosheniyu v neitral'nom vodorode. Oni podtverzhdayut nizhnii predel, predlozhennyi Kameronom s soavtorami. Odnako s verhnim predelom oni ne soglasny. T.o. prezhnyaya ocenka v 15 kpk v principe vse eshe "v igre". astro-ph/0503193 Verhnii predel na massu zvezd (An upper limit to the masses of stars) Authors: Donald F. Figer Comments: To appear in Nature, March 10, 2005, Vol. 34, No. 7030, 192 (ST ScI Eprint #1645). More files can be found at http://www.stsci.edu/~figer Skoplenie Arki mozhet soderzhat' ochen' massivnye zvezdy. Avtor stat'i pytaetsya ispol'zovat' eto obstoyatel'stvo dlya ustanovleniya verhnego predela na massu (razumeetsya, rech' idet o predele dlya metallichnosti, sootvetstvuyushei imeyusheisya v dannom skoplenii). Pokazano, chto v skoplenii net zvezd s nachal'noi massoi bolee 130 mass Solnca. astro-ph/0503200 Zvezdy temnoi energii (Dark Energy Stars) Authors: G. Chapline Comments: 4 pages, 2 figures Obsuzhdayutsya protivorechiya mezhdu kvantovoi mehanikoi i obshei teoriei otnositel'nosti na primere kollapsiruyushih ob'ektov. Sami "Zvezdy temnoi energii" - eto al'ternativa chernym dyram. Podcherknem, chto stat'ya bolee chem spornaya. Odnako interesnaya. astro-ph/0503217 Radioizluchenie, svyazannoe s UMI v Holmberg II (Radio Emission Associated with the ULX in Holmberg II) Authors: Neal A. Miller, Richard Mushotzky, Susan Neff Comments: 5 pages with 3 figures, to appear in ApJ Letters Obnaruzheno radioizluchenie, svyazannoe s odnim iz ul'tramoshnyh rentgenovskih istochnikov (UMI). Izluchenie prihodit oz oblasti razmerom 60 na 40 parsek. Poetomu, polagayut avtory, ono ne mozhet vyzyvat'sya istochnikom s chernoi dyroi zvezdnoi massy, izluchayushim anizotropno. Znachit, schitayut oni, my vse-taki imeem delo s chernoi dyroi bolee massivnoi, chem te chto porozhdayutsya seichas v konce zvezdnoi evolyucii. lekcii gr-qc/0502110 Fenomenologicheskaya kvantovaya gravitaciya (Phenomenological Quantum Gravity) Authors: Dagny Kimberly, Joao Magueijo Comments: Lectures given at XI BSCG Lekcii, posvyashennye oblasti, lezhashei mezhdu sovsem uzh teoreticheskoi (prakticheski, matematicheskoi) fizikoi i nablyudeniyami (v pervuyu ochered' kosmologicheskimi). Poskol'ku eto ne special'nyi obzor, a lekcii, prochitannye na shkole, to izlozhenie bolee dostupno, chem mozhet byt' nekotorye ozhidayut. Hotya, konechno, eto i ne chtenie dlya metro. Krome bolee-menee standartnyh idei i podhodov avtory obsuzhdayut i nekotorye radikal'nye idei. V lekciyah takzhe zatronuty takie oblasti, svyazannye s diskussiyami v svyazi s perspektivoi sozdaniya kvantovoi gravitacii, kak kosmicheskie luchi sverhvysokih energiya i variacii konstant. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0503046 Perevod popytki Einshteina postroit' Edinuyu Teoriyu Polya (Translation of Einstein's Attempt of a Unified Field Theory with Teleparallelism) Authors: Alexander Unzicker, Timothy Case Comments: 4 translated articles, 23 pages Predstavlen perevod na angliiskii chetyreh statei Einshteina, v kotoryh sdelana popytka postroeniya Edinoi Teorii Polya. physics/0503069 Izobrazheniya v novogodnih sharikah (Images in Christmas Balls) Authors: Eef van Beveren, Frieder Kleefeld, George Rupp Comments: 13 pages, 7 figures plain LaTeX Stat'ya napominaet publikovavshiesya v zhurnale Kvant. Navernoe, ona budet polezna prepodavatelyam fiziki, kotorye hotyat podrobnee razobrat' temu sfericheskih zerkal. Vernut'sya k nachalu stranicy

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Sm. takzhe: Obzory elektronnyh preprintov Astro-Ph Opublikovan ocherednoi obzor preprintov astro-ph Luchshie raboty v astro-ph v 2006 godu Luchshie nablyudatel'nye raboty v astro-ph za 2005 g. Obzory elektronnyh preprintov Astro-Ph za 2002 g. Obzor obzorov astro-ph: luchshee za pervuyu polovinu 2003 g. Obzor obzorov astro-ph: luchshee za vtoruyu polovinu 2003 g. Vse publikacii na tu zhe temu >>