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Otkrytie analogov Yupitera i Saturna s pomosh'yu gravitacionnogo mikrolinzirovaniya Otkrytie kandidata v ochen' yarkie sil'no linzirovannye galaktiki na z~7.6 Teoriya strun, gravitaciya i eksperiment
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Polnyi Arhiv predydushih vypuskov. Arhiv statei, voshedshih v vypuski s 01 iyulya 2002 g. po 31 marta 2003 g.
Arhiv na 14.04.2006
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Razdely arhiva (s aprelya 2003 g.): Poleznye astronomicheskie ssylki. Korotkoe esse ob elektronnyh preprintah. Obzornye stat'i v astro-ph 2001-2003 gg.
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Referaty otdel'nyh statei
Authors: B.S.Gaudi et al. Comments: 11 pages, 2 figures, to appear in the 15 February 2008 issue of Science S pomosh'yu mikrolinzirovaniya vokrug zvezdy s massoi 0.5 solnechnyh, nahodyasheisya na rasstoyanii okolo 1.5 kpk ot nas, otkryty dve planety. Massy sostavlyayut 0.71 i 0.27 massy Yupitera. Rasstoyaniya ot zvezdy 2.3 i 4.6 a.e. T.o., eto ves'ma pohozhe na Yupiter i Saturn v Solnechnoi sisteme. Dlya analiza otkrytiya planet ponadobilis' dannye mnozhestva observatorii, nablyudavshie dannoi sobytie mikrolinzirovaniya (ono poluchilo kod OGLE-2006-BLG-109).
Obsudit' v ZhZh-soobshestve
ru_astroph.
Authors: Nanda Rea, Silvia Zane, Roberto Turolla, Maxim Lyutikov, Diego Gotz Comments: 42 pages, 11 figures. ApJ submitted on 2007 December 11 Avtory ispol'zuyut model', v kotoroi neteplovoi spektr magnitarov na energiyah poryadka neskol'kih keV ob'yasnyaetsya rezonansnym rasseyaniem fotonov teplovogo izlucheniya poverhnosti na goryachei magnitosfernoi plazme. Oni sravnivayut model'nye rezul'taty s dannymi po mnogim ARP i MPG (AXP, SGR). Rezul'taty govoryat o tom, chto plotnost' elektronov v magnitosfere na tri poryadka vyshe Goldraih-Dzhulianovskoi plotnosti.
Authors: Anna Frebel Comments: 16 pages, invited review talk, to appear in the ASP conference proceedings of the "Frank N. Bash Symposium 2007: New Horizons in Astronomy", editors: A. Frebel, J. Maund, J. Shen, M. Siegel Nebol'shoi obzor po malometallichnym zvezdam v nashei Galatike. Krome svodki dannyh i rassuzhdenii o nereshennyh voprosah, avtor kratko opisyvaet istoriyu otkrytiya takih ob'ektov.
Authors: Matts Roos Comments: 33 pages, 2 figures. Accepted for publication in the UNESCO Encyclopedia of Life Supporting Systems (EOLSS) Ochen' udachnyi obzor. Eto deistvitel'no enciklopedicheskaya stat'ya. Na vpolne dostupnom urovne, no strogo, tam ponemnogu rasskazano obo vsem, chto imeet otnoshenie v zagolovku stat'i. po odnoi dve stranicy otvedeno takim temam kak: istoriya komologii, paradoks Ol'bersa, zakon Habbla, STO, izmerenie rasstoyanii, OTO, testy OTO, gravitacionnoe linzirovanie, chernye dyry, kosmologiya Fridmana-Lemetra, teplovaya istoriya vselennoi, inflyaciya, reliktovoe izluchenie, krupnomasshtabnaya sturktura, temnoe veshestvo, temnaya energiya. Ya by dobavil eshe chut'-chut' o pervichnom nukleosinteze....
Authors: Antoine Petiteau et al. Comments: 22 pages, Physical Review D 77, 023002 (2008) 11 Trenirovat'sya nado na koshkah. Ili na komp'yuternyh modelyah. Poetomu pri razrabotke krupnyh nauchnyh proektov raznye gruppy zanimayutsya roazrabotkoi komp'yuternyh simulyatorov ustanovki. V dannom sluchae rech' idet o kosmicheskom gravitacionno-volnovom detektore LISA. Programma pozvolyaet rasschityvat' chuvstvitel'nost' detektora i signaly ot istochnikov s izvestnymi svoistvami. Programma nahoditsya v svobodnom dostupe.
Authors: Andreas Reisenegger Comments: To appear in Revista Mexicana de Astronomia y Astrofisica, as part of the proceedings of the XII Latin American Regional IAU Meeting, held on Isla Margarita, Venezuela, 22-26 October 2007. Spanish and English abstract, English text, 7 pages, no figures Nebol'shoi tolkovyi obzor po neitronnym zvezdam. Avtor - specialist po magnitnym polyam etih ob'ektov. No, prezhde chem pereiti sobstvenno k polyam, on kratko, no ochen' chetko obrisovyvaet osnovnuyu fiziku, svyazannuyu s neitronnymi zvezdami. Bukval'no desyatok prostyh formul, umestivshihsya vmeste s ob'yasneniyami na pare stranic, dayut yasnuyu kartinku.
Authors: Jean-Pierre Luminet Comments: 21 pages, 11 figures. Proceedings of conference "Tessellations : The world a jigsaw", Leyden (Netherlands), march 2006 Po suti eto populyarnaya stat'ya po topologii Vselennoi. Lyumine izvesten kak avtor nashumevshei stat'i, v kotoroi dannye po reliktovomu izlucheniyu interpretirovalis' v ramkah modeli v netrivial'noi topologiei. V dannom obzore rasskazano o tom, kak takie modeli vyglyadyat, kak ih mozhno proveryat' po imeyushimsya dannym i tp.
Authors: L. D. Bradley et al. Comments: Accepted for publication in the Astrophysical Journal, 8 pages, 8 figures Po dannym nablyudenii na Kosmicheskom teleskope i na Spitcere obnaruzhen interesnyi ob'ekt. Avtory polagayut, chto eto yarkaya sil'no liznirovannaya galaktika na krasnom smeshenii 7-8. Poka eto lish' kandidat - t.e., tochno opredelit' svoistva galaktiki i krasnoe smeshenie ne udaetsya. No, esli ocenka budet podtverzhdena, to eto budet samaya yarkaya (iz izvestnyh na segodnyashnii den') galaktika na stol' bol'shom rasstoyanii ot nas.
Authors: Alexandre Refregier, the DUNE collaboration Comments: 13 pages, submitted to Experimental Astronomy Cosmic vision - tekushaya programma Evropeiskogo kosmicheskogo agentstva (ESA), opredelyayushaya strategiyu krupnyh nauchnyh proektov v oblasti astronomii. DUNE - odin iz predlagaemyh proektov. Eto 1.2-metrovyi teleskop, rabotayushii v vidimom i IK diapazonah. Za vremya raboty teleskop dolzhen sdelat' obzor neba na dlinah voln ot 550 do 1600 nanometrov. Hotya v nazvanie "zashity" temnaya energiya i temnaya materiya, rezul'taty budut vazhny dlya vsei astronomii: ot ekzoplanet do, sobstvenno, kosmologii.
Authors: Christopher Thompson Comments: 25 pages, submitted to the Astrophysical Journal Stat'i Krisa Tompsona - odnogo izv edushih specialistom po elektrodinamike magnitarov- chasto pechatayut v odnu kolonku, a ne v dve, t.k. inache formuly ne umeshayutsya. Ocherednaya stat'ya - ne isklyuchenie. Stat'ya v osnovnom posvyashena detal'nomu izucheniyu processa rozhdeniya par v sil'nyh magnitnyh polyah. Sm. takzhe eshe odnu stat'yu Tompsona po magnitaram arxiv:0802.2572, a takzhe rabotu arxiv:0802.2647, posvyashennuyu modelirovaniyu spektrov magnitarov.
Authors: Georges Meynet et al. Comments: 13 pages, 10 figures, IAU Symp. 250, Massive stars as Cosmic Engines, F. Bresolin, P.A. Crowther, J. Puls Eds Kak obychno: idet potok novyh dannyh i razvivayutsya modeli opisaniya fiziki. Na etot raz i to, i drugoe otnositsya k massivnym zvezdam. Posle spiska novyh nablyudatel'nyh obzorov i perechnya poluchennyh rezul'tatov avtory perehodyat k opisaniyu novyh modelei, uchityvayushih vrashenie zvezd, i k sravneniyu rezul'tatov raschetov s nablyudeniyami. Osnovnoi vyvod, pri opisanii massivnyh zvezd bez ucheta vrasheniya ne oboitis'!
Authors: O. Kargaltsev, Z. Misanovic, G. G. Pavlov, J. A. Wong, G. P. Garmire Comments: 14 pages, 16 figures and 5 tables Nablyudeniya na Chandre i N'yutone pokazali nalichie simpatichnyh hvostikov (kazhdyi dlinoi v neskol'ko parsek), tyanushihsya za dvumya radiopul'sarami.
Hvost pul'sara PSR J1509-5850. Krasnym pokazano rentgenovskoe izobrazhenie, a sinim - radio. Takie hvosty ne redkost', poskol'ku pul'sary dvizhutsya v srede so sverhzvukovoi skorost'yu, i sootnoshenie davlenii takovo, chto obrazuetsya udarnaya volna. Hvosty pomogayut tochno opredelit' napravlenie dvizheniya pul'sara. Inogda eto vazhno. Naprimer dlya PSR J1740+1000 okazalos', chto on rodilsya vysoko nad ploskost'yu galaktiki i seichas dvizhetsya v ee storonu, t.e. praroditelem byla ne zvezda diska Galaktiki (kak eto chashe vsego byvaet), a zvezda galo. Tak chto "po hvostu mozhno opredelit' rodoslovnuyu".
Authors: A. A. Mahabal et al. Comments: Latex, 4 pages, 3 figures, macros included. To appear in refereed proceedings of "Hotwiring the Transient Universe 2007", eds. A. Allan, R. Seaman, and J. Bloom, Astron. Nachr. vol. 329, March, 2008 Opisyvaetsya metodika avtomaticheskogo klassificirovaniya tranzientnyh ob'ektov pri provedenii massovyh shirokopol'nyh obzorov neba.
Authors: Wayne Hu Comments: 41 pages, 19 figures, to appear in XIX Canary Island Winter School of Astrophysics, ed. R. Rebelo and J.A. Rubino-Martin Dostatochno podrobnoe opisanie osnovnyh fizicheskih processov, svyazannyh s formirovaniem svoistv reliktovogo fona. Esli vy hotite ponyat', kak v spektre moshnosti relikta na raznyh masshtabah voznikayut piki, i chto my mozhem iz vsego etogo izvlech' - to vam syuda.
Authors: E. Alecian et al. Comments: 5 pages, Accepted for publication as a letter in A&A Izvestno, chto mnogie (tochnee okolo 5 procentov) A/V-zvezdy imeyut dostatochno sil'nye magnitnye polya. Proishozhdenie etih polei ostaetsya do konca neizvestnym. To li eto ostatochnye polya, kotorye byli eshe v molekulyarnom oblake, iz kotorogo formirovalas' zvezda. To li polya usilivalis' v processe formirovaniya i evolyucii zvezdy. Dlya vyyasneniya okonchatel'nogo otveta vazhno izmeryat' polya u molodyh zvezd do stadii glavnoi posledovatel'nosti. V rabote predstavleny rezul'taty po dvum takim ob'ektam. Sil'nye polya obnaruzheny, i pri etom zvezdy otnositel'no medlenno vrashayutsya (period v neskol'ko dnei protiv periodov menee dnya i analogichnyh zvezd bez sil'nyh polei). Vse eto yavlyaetsya argumentom v pol'zu togo, chto polya ostatochnye.
Authors: Thibault Damour, Marc Lilley Comments: 75 pages, 8 figures; based on lectures given by T. Damour at Les Houches Summer School in Theoretical Physics: Session 87: String Theory and the Real World: From Particle Physics to Astrophysics, Les Houches, France, 2-27 July 2007 Bol'shoi professional'nyi (t.e. sovsem ne populyarnyi) obzor po gravitacii. teorii strun i vozmozhnostyam eksperimental'noi proverki.
Authors: Comments: Predstavlen kod dlya modelirovaniya sliyaniya galaktik i prochih interesnyh yavlenii, gde primenimo priblizhenie mnogih tel. Programma mozhet ispol'zovat'sya kak na obychnyh komp'yuterah, tak i na GRAPE. Yazyk - Fortran 95. Programma takzhe mozhet byt' ispol'zovana dlya issledovaniya kosmologicheskih zadach (t.e. mozhno vklyuchat' kosmologicheskoe rasshirenie). Sm. takzhe vtoruyu stat'yu, posvyashennuyu etomu kodu: arxiv:0802.4253.
My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing).
Authors: Nebojsa Murisic, Lou Kondic Comments: 10 pages Okazyvaetsya, v voprosah ispareniya kapel' est' eshe mnogo neyasnogo! V chastnosti, avtory ispol'zuyut dve populyarnye modeli i pokazyvayut, chto v ryade sluchaev (dlya kapli deionizirovannoi vody na kremnievo podlozhke) modeli dayut raznye rezul'taty po skorosti ispareniya.
Authors: Peter Goddard Comments: 34 pages, A contribution to the volume "The Birth of String Theory" Ocherednoi material, podgotovlennyi dlya sbornika po istorii teorii strun. V etoi stat'e nauchnyi material chasto dovleet nad istoricheskim. T.e., eto skoree obzor so mnozhestvom istoricheskih remarok i otstuplenii.
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