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The R.A.P.Project "Prosto o slozhnom" "Astro-ph za 2006 g." Nemnogo statistiki Predydushii vypusk (N151) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 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" astro-ph/0703192 GRB 060505: vozmozhno korotkii gamma-vsplesk v oblasti zvezdoobrazovaniya na krasnom smeshenii 0.09 astro-ph/0703287 Predely na massu i radius millisekundnogo rentgenovskogo pul'sara SAX J1808.4-3658 astro-ph/0703317 Troinoe kol'co vokrug SN 1987A: otpechatok sliyaniya dvoinoi astro-ph/0703336 VLBA izmereniya transversal'noi skorosti magnitara XTE J1810-197 Otdel'nye stat'i GRB 060505: vozmozhno korotkii gamma-vsplesk v oblasti zvezdoobrazovaniya na krasnom smeshenii 0.09 Rozhdenie strannyh zvezd: kinetika, gidrodinamika i fenomenologiya sverhnovyh i gamma-vspleskov Verhnii predel na fonovoe gravitacionnoe izluchenie Glubokie poiski radio pul'sacii i vspyshek ot chetyreh yuzhnyh anomal'nyh rentgenovskih pul'sarov Dissipaciya magnitnogo polya v kore neitronnyh zvezd: ot magnitarov k odinochnym neitronnym zvezdam Periodichnosti u rentgenovskih dvoinyh po dannym nablyudenii Swift/BAT Predely na massu i radius millisekundnogo rentgenovskogo pul'sara SAX J1808.4-3658 Troinoe kol'co vokrug SN 1987A: otpechatok sliyaniya dvoinoi VLBA izmereniya transversal'noi skorosti magnitara XTE J1810-197 Rasstoyanie do odinochnoi neitronnoi zvezdy RX J0720.4-3125 Temp rozhdeniya magnitarov Radionablyudeniya sverhnovyh Otkrytie HE 1523-0901, zvezdy s maloi metallichnost'yu, sil'no obogashennoi r-processom, s zaregistrirovannym uranom Ispol'zovanie metodov akusticheskoi registracii neitrino v eksperimente ANTARES Iz razdela physics Passivnoe obluchenie sotovymi telefonami: uvelichenie intensivnosti za schet otrazhenii 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. Obsudit' na forume Scientific.RU Obsudit' na forume Zvezdocheta Avtor proekta Sergei Popov 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 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 N152 astro-ph za 10 - 19 marta 2007 goda: izbrannye stat'i Referaty otdel'nyh statei astro-ph/0703192 GRB 060505: vozmozhno korotkii gamma-vsplesk v oblasti zvezdoobrazovaniya na krasnom smeshenii 0.09 (GRB 060505: A possible short-duration gamma-ray burst in a star forming region at redshift of 0.09) Authors: E. O. Ofek, et al. Comments: 7 pages, 3 figures, ApJ submitted Vsplesk 5 maya 1006 goda imel dlitel'nost' okolo 4 sekund. Formal'no, eto vyshe 2-sekundnogo predela, kotoryi, tradicionno ispol'zuetsya dlya razdeleniya dlinnyh i korotkih vspleskov. Avtory proveli nablyudeniya vspleska i ego poslesvecheniya v raznyh diapazonah. Rezul'taty okazalis' ves'ma interesnymi. Vsplesk blizkii, krasnoe smeshenie 0.0894. Vsplesk slabyi (esli schitat' energovydelenie sfericheski simmetrichnym, to bylo vysvecheno okolo 1049 erg). Poyavilsya on v oblasti zvezdoobrazovaniya. T.o., praroditelyu vspleska bylo menee 10 millionov let. Vsplesk ne soprovozhdalsya sverhnovoi (eto pokazali detal'nye nablyudeniya v optike). Vse eto ne slishkom tipichno dlya dlinnyh vspleskov. Avtory obsuzhdayut dve vozmozhnosti razreshit' protivorechie. Vo-pervyh, eto mozhet byt' korotkii vsplesk. T.e., po suti svoei, po fizike, on dolzhen byt' otnesen k korotkim. 4 sekundy eto ne tak daleko ot formal'nogo predela, a raspredeleniya dlinnyh i korotkih vspleskov po prodolzhitel'nosti sovershenno tochno dolzhny perekryvat'sya. Pravda, esli eto standartnyi korotkii vsplesk, to nado ob'yasnyat', kak on uspel poyavit'sya vsego lish' cherez 10 millionov let posle rozhdeniya praroditelya. Seichas naibolee populyarnoi gipotezoi o mehanizme korotkih vspleskov yavlyaetsya sliyanie dvuh kompaktnyh ob'ektov (dvuh neitronnyh zvezd ili neitronnoi zvezdy i chernoi dyry). Sliyanie vsego lish' cherez 10 millionov let posle rozhdeniya zvezd - eto na predele vozmozhnogo. Vo-vtoryh, polagayut avtory, my mozhem imet' delo s podklassom dlinnyh vspleskov. Prichem, poskol'ku eto slaboe sobytie, to temp takih vspleskov dolzhen byt' dostatochno vysok, v tri raza vyshe tempa "obychnyh" dlinnyh vspleskov. Eto ob'yasnenie, t.o., takzhe stavit problemy. T.o., novye dannye po gamma-vspleskam prodolzhayut podkidyvat' novye zagadki. obzor astro-ph/0703233 Rozhdenie strannyh zvezd: kinetika, gidrodinamika i fenomenologiya sverhnovyh i gamma-vspleskov (The birth of strange stars: kinetics, hydrodynamics and phenomenology of supernovae and GRBs) Authors: J.E. Horvath Comments: 23 pp., 1 .eps figure Esli kvarkovye zvezdy sushestvuyut, to oni kak-to obrazuyutsya. T.e., est' nekotoryi dlyashiisya vo vremeni process, v kotorom obychnaya neitronnaya zvezda (ili protoneitronnaya zvezda) prevrashaetsya v kvarkovuyu. Process etot neprostoi, i neudivitel'no, chto nikakoi yasnosti v etom voprose net. V stat'e avtor vo-pervyh, kratko opisyvaet kvarkovye zvezdy, a vo-vtoryh, daet obzor sovremennyh issledovanii, posvyashennyh processu obrazovaniya kvarkovyh zvezd. astro-ph/0703234 Verhnii predel na fonovoe gravitacionnoe izluchenie (Upper limit map of a background of gravitational waves) Authors: The LIGO Scientific Collaboration Comments: 11 pages, 9 figures, 2 tables Predstavleny rezul'taty analiza nablyudenii LIGO po gravitacionno-volnovomu fonu. Sushestvenno, chto rezul'taty polucheny bez predpolozheniya ob izotropii fonovogo izlucheniya. T.o., udalos' postroit' karty verhnih predelov, a ne prosto dat' odno chislo, harakterizuyushee predel "po vsemu nebu". astro-ph/0703246 Glubokie poiski radio pul'sacii i vspyshek ot chetyreh yuzhnyh anomal'nyh rentgenovskih pul'sarov (Deep Searches for Radio Pulsations and Bursts from Four Southern Anomalous X-ray Pulsars) Authors: Fronefield Crawford, Jason W. T. Hessels, Victoria M. Kaspi Comments: 6 pages, including 1 table. Accepted for publication in ApJ Predstavleny rezul'taty nablyudenii chetyreh anomal'nyh rentgenovskih pul'sarov na Parksovskom (Parkes) teleskope. Istochniki ne byli zaregistrirovany, t.e. est' tol'ko verhnie predely na ih radioizluchenie. Vo vremya nablyudenii istochniki ne proyavlyali vspyshechnoi aktivnosti v rentgenovskom diapazone. T.o., avtory polagayut, chto rezul'taty mogut sluzhit' podtverzhdeniem togo, chto v spokoinom sostoyanii anomal'nye pul'sary ne izluchayut v radio. astro-ph/0703267 Dissipaciya magnitnogo polya v kore neitronnyh zvezd: ot magnitarov k odinochnym neitronnym zvezdam (Magnetic field dissipation in neutron star crusts: from magnetars to isolated neutron stars) Authors: J.A. Pons, U. Geppert Comments: 14 pages, 10 figures Avtory rassmatrivayut zatuhanie magnitarnyh magnitnyh polei v kore. Odin iz osnovnyh vyvodov sostoit v tom, chto ob'ekty Velikolepnoi semerki v ramkah takogo scenariya dolzhny yavlyat'sya potomkami magnitarov. Na moi vzglyad, zdes' est' nekotorye trudnosti. Delo v tom, chto temp rozhdeniya o''ektov tipa Velikolepnoi semerki dovol'no vysok. On v neskol'ko raz vyshe, chem temp rozhdeniya anomal'nyh rentgenovskih pul'sarov i istochnikov myagkih povtoryayushihsya gamma-vspleskov (eti istochniki yavlyayutsya kandidatami v magnitary). Protivorechie mozhno razreshit' tol'ko predpolozheniem, chto bOl'shaya chast' molodyh magnitarov ne proyavlyaet aktivnosti (ili periody aktivnosti chrezvychaino korotkie). astro-ph/0703274 Periodichnosti u rentgenovskih dvoinyh po dannym nablyudenii Swift/BAT (Periodicities in X-ray Binaries from Swift/BAT Observations) Authors: R. Corbet et al. Comments: To appear in the proceedings of "The Extreme Universe in the Suzaku Era", Kyoto, Japan, December 4-8, 2006. Monitory, rabotayushie v zhestkom rentgene i myagkom gamma, v osnovnom prednaznacheny dlya nablyudeniya gamma-vspleskov. No vidyat, konechno, vse, chto popadaet v ih shirokoe pole zreniya. Periodicheskie signaly potom mozhno "vytaskivat'" iz poluchennyh dannyh. V svoe vremya takaya rabota provodilas' po rezul'tatam mnogoletnih nablyudenii priborom BATSE na Komptonovskoi observatorii. Teper' analogichnyi analiz sdelan dlya dannyh Svifta. K vazhnym novym rezul'tatam sleduet otnesti obnaruzhenie orbital'nyh periodov u dvuh istochnikov, otkrytyh na Integrale, a takzhe obnaruzhenie 5-chasovogo perioda u 4U 1954+31. Avtory polagayut, chto eto mozhet byt' period sobstvennogo vrasheniya neitronnoi zvezdy. Togda, eto budet rekord po "zatormozhennosti" vrasheniya u etih ob'ektov. astro-ph/0703287 Predely na massu i radius millisekundnogo rentgenovskogo pul'sara SAX J1808.4-3658 (Limits on Mass and Radius for the ms-Period X-ray Pulsar SAX J1808.4-3658) Authors: Denis A. Leahy, Sharon M. Morsink, Coire Cadeau Comments: 6 pages, 2 figures. Submitted to ApJ Letters Avtory dayut ocenku massy i radiusa neitronnoi zvezdy, vhodyashei v dvoinuyu sistemu SAX J1808.4-3658. Sushestvenno, chto ih rezul'taty protivorechat osnovnoi masse drugih. A imenno, dannye govoryat o tom, chto massa i radius sootvetstvuyut t.n. myagkomu uravneniyu sostoyaniya (eto govorit o tom, chto neitronnaya zvezda kak by bolee szhimaema). Uravnenie sostoyaniya dolzhno byt' odno! Maksimum, chto mozhet byt', eto sosushestvovanie neskol'kih faz (naprimer, obychnye adronnye neitronnye zvezdy i kvarkovye zvezdy), t.e. uravnenie sostoyaniya budet sostoyat' iz dvuh chastei, perehodyashih (skachkom) drug v druga na nekotoroi krticheskoi plotnosti. Poka vse dannye svidetel'stvovali v pol'zu zhestkih uravnenii sostoyaniya (naprimer, sushestvovanie massivnyh neitronnyh zvezd, s massami bolee 2 solnechnyh, a takzhe analogichnye privodimym v stat'e dannye po nablyudeniyam rentgenovskih istochnikov). Skoree vsego okazhetsya, chto ocenki, sdelannye etoi stat'e, soderzhat v sebe kakuyu-to neuchtennuyu neopredelennost'. Tem ne menee, rezul'tat zasluzhivaet vnimaniya. astro-ph/0703317 Troinoe kol'co vokrug SN 1987A: otpechatok sliyaniya dvoinoi (The Triple-Ring Nebula around SN1987A: Fingerprint of a binary merger) Authors: T. Morris, Ph. Podsiadlowski Comments: 6 pages (including 7 pages of supplementary material), 2 figures (reduced in size), appeared in Science on 23rd February 2007. Science 315 (2007) 1103-1106 Avtory pokazyvayut s pomosh'yu trehmernogo modelirovaniya, chto sistema troinyh kolec vokrug SN1987A mogla poyavit'sya iz-za togo, chto praroditelem byla zvezda, obrazovavshayasya v rezul'tate sliyaniya komponent dvoinoi sistemy. Animacii dostupny zdes' i zdes'. Obsudit' v ZhZh-soobshestve ru_astroph. Obsudit' na Astroforume v Nauchnoi panorame. astro-ph/0703336 VLBA izmereniya transversal'noi skorosti magnitara XTE J1810-197 (VLBA measurement of the transverse velocity of the magnetar XTE J1810-197) Authors: D. J. Helfand et al. Comments: Accepted for publication in The Astrophysical Journal. Six pages, 2 figures Anomal'nyi rentgenovskii pul'sar XTE J1810-197 udalos' pronablyudat' v radiodiapazone. Krome vazhnoi informacii o rabote magnitara, radionablyudeniya dayut vozmozhnost' opredelit' nekotorye vazhnye parametry neitronnoi zvezdy. Naprimer, mozhno izmerit' ee skorost'. Tochnee, mozhno opredelit' proekciyu skorosti na nebesnuyu sferu, skorost' vdol' lucha zreniya ostaetsya neizvestnoi. Poluchennoe znachenie sostavlyaet primerno 200-300 km/s. Eto nemnogo dlya neitronnyh zvezd. T.o., staraya gipoteza o tom, chto magnitary (anomal'nye rentgenovskie pul'sary i istochniki myagkih povtoryayushihsya gamma-vspleskov) pogolovno yavlyayutsya bystro dvizhushimisya ob'ektami, navernoe bolee ne imeet prava na sushestvovanie. astro-ph/0703343 Rasstoyanie do odinochnoi neitronnoi zvezdy RX J0720.4-3125 (The Distance to the Isolated Neutron Star RX J0720.4-3125) Authors: D. L. Kaplan, M. H. van Kerkwijk, J. Anderson Comments: 17 pages, 8 figures. To be published in ApJ S pomosh'yu opticheskih nablyudenii na Kosmicheskom teleskope udalos' opredelit' parallaks eshe odnoi neitronnoi zvezdy iz Velikolepnoi semerki. Rasstoyani okazalos' ravnym 270-530 pk. Transversal'naya skorost' 140-270 km/c. Po vsei vidimosti, zvezda rodilas' v OV associacii Trumpler okolo milliona let nazad. astro-ph/0703346 Temp rozhdeniya magnitarov (The birthrate of magnetars) Authors: R. Gill, J. Heyl Comments: 7 pages, to be submitted to MNRAS Avtory rasschityvayut temp rozhdeniya magnitarov i ob'ektov tipa Velikolepnoi semerki. Dlya pervyh poluchaetsya znachenie raz v 500 let, dlya vtoryh - na poryadok bol'she. Chto nazyvaetsya, "ob etom-to davno i govorili bol'sheviki". Ya neodnokratko podcherkival, chto temp rozhdeniya Velikolepnoi semerki slishkom velik, chtoby sdelat' eti ob'ekty "starymi magnitarami". miniobzor astro-ph/0703411 Radionablyudeniya sverhnovyh (Radio Observations of Supernovae) Authors: Nino Panagia, et al. Comments: 8 pages, 4 figures. Invited talk at he Multicoloured Landscape of Compact Objects and their Explosive Origins', Cefalu', 2006 June 11-24 (AIP Conf. Proc.), eds. L. Burderi et al. Radionablyudeniya sushestvenno obogashayut nashe ponimanie vzryvov sverhnovyh i rannei evolyucii ostatka. Na segodnyashnii den' udalos' otnablyudat' bolee 2 desyatkov radiosverhnovyh. Chto konkretno dayut eti nablyudeniya opisyvaetsya v nebol'shom obzore. astro-ph/0703414 Otkrytie HE 1523-0901, zvezdy s maloi metallichnost'yu, sil'no obogashennoi r-processom, s zaregistrirovannym uranom (Discovery of HE 1523-0901, a Strongly r-Process Enhanced Metal-Poor Star with Detected Uranium) Authors: Anna Frebel et al. Comments: 7 pages, 2 figures. Accepted for publication in ApJ Letters Sobstvenno, koryavye perevod zagolovka uzhe soderzhit v sebe vsyu osnovnuyu infrmaciyu. Obnaruzhena zvezda s maloi metallichnost'yu. Vazhnoi osobennost'yu yavlyayutsya ee himicheskie anomalii. Spektr pokazyvaet, chto zvezda sil'no obogashena elementami, obrazuyushimisya v t.n. r-processe. Etot process ne idet sobstvenno v zvezdah na stadii termoyadernogo goreniya. Neobhodimo, chtoby vzryvalas' sverhnovaya, ili proishodilo eshe chto-nibud' interesnoe. Sredi drugie netipichnyh dlya zvezd elementov, obnaruzhen uran. Prichem linii urana v spektre dostatochno sil'ny. Nalichie sil'nyh linii neskol'kih redkih elementov pozvolilo tochno opredelit' voshrast zvezdy. On okazalsya ravnym 13.2 milliarda let. astro-ph/0703442 Ispol'zovanie metodov akusticheskoi registracii neitrino v eksperimente ANTARES (Integration of Acoustic Neutrino Detection Methods into ANTARES) Authors: K. Graf et al. Comments: 6 pages, 5 figures, to appear in the proceedings of the International ARENA Workshop, May 28-30th, 2006, University of Northumbria Uslyshat' neitrino ... Okazyvaetsya, neitrino mozhno registrirovat' akusticheskimi detektorami. Esli energiya chasticy ochen' velika, to ona porozhdaet kaskad chastic. V vode eto privodit k generacii akusticheskih voln, kotorye mozhno razlichit' na fone vysokochastotnogo (20 KGc) shuma s rasstoyaniya v 1 km! Stroyashiisya detektor ANTARES budet vklyuchat' v sebya akusticheskie ustanovki. V stat'e kratko opisan sam proekt, a takzhe ego planiruemaya akusticheskaya chast'. Uzhe v etom godu budut ustanovleny pervye "mikrofony dlya neitrino". My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0703124 Passivnoe obluchenie sotovymi telefonami: uvelichenie intensivnosti za schet otrazhenii (Passive Exposure to Mobile Phones: Enhancement of Intensity by Reflection) Authors: Tsuyoshi Hondou et al. Comments: 6 pages, 6 figures, Journal of the Physical Society of Japan, Vol. 75 No. 8, August, 2006, 084801 Avtory pokazyvayut, chto v mestah massovogo skopleniya lyudei v tom sluchae, esli mikrovolny mogut ispytyvat' otrazheniya (naprimer, v liftah ili poezdah), obluchenie za schet sotovyh telefonov mozhet byt' sushestvenno uvelicheno do znachenii, kotorye uzhe mozhno schitat' riskovannymi. Konechno, kak i vo vsyakom sluchae, svyazannom s "goryachei" tematikoi i nizkimi dozami, nuzhny ochen' detal'nye issledovaniya dlya nezavisimogo podtverzhdeniya (ili oproverzheniya) etogo vyvoda. Vernut'sya k nachalu stranicy

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