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  • 11.10.2004. N'yuton smotrit na M31
  • 05.10.2004. Million sekund Kassiopei A
  • 18.09.2004. Rozhdenie lacertidy
  • 16.09.2004. Planeta okolo korichnevogo karlika

    Soderzhanie i bystryi perehod k razdelam obzora


    Stat'i nedeli
    "Luchshie iz luchshih"

  • astro-ph/0502312
    Temnoe vodorodnoe oblako v skoplenii v Deve

  • astro-ph/0502329
    Gigantskaya vspyshka ot SGR1806-20 s prilozheniem k korotkim gamma-vspleskam (i drugie stat'i, posvyashennye etomu vsplesku)

  • physics/0502123
    Anomaliya Pionerov: spisok problem


    Goryachie temy nedeli

  • Vspyshka SGR 1806-20


    Otdel'nye stat'i
  • Fizicheskaya model' prodolzhitel'nosti zhizni kvazara
  • K ponimaniyu bystrogo spada tempa zvezdoobrazovaniya
  • Sverhnovye na bol'shih krasnyh smesheniyah: kosmologicheskie prilozheniya
  • Kratkoe soderzhanie rabochei vstrechi po kosmologii ICGC04
  • Koronograficheskie metody registracii planet tipa Zemli
  • Obzornyi radiomonitoring ul'tramoshnyh rentgenovskih istochnikov
  • Rezhim propellera pri diskovoi akkrecii na bystrovrashayushuyusya zamagnichennuyu zvezdu
  • Eksperiment XENON
  • Priroda ul'tramoshnyh rentgenovskih istochnikov
  • Gamma-vspleski ot kvarkovyh zvezd
  • Temnoe vodorodnoe oblako v skoplenii v Deve
  • Inflyacionnaya kosmologiya
  • Gigantskaya vspyshka ot SGR1806-20 s prilozheniem k korotkim gamma-vspleskam
  • Poisk gravitacionnyh voln, svyazannyh s gamma-vspleskom GRB030329, ispol'zuya detektory LIGO
  • Pul'sarnye kiki iz-za spin-1 cvetnoi sverhprovodimosti


    Iz razdela physics
  • Chasy na holodnyh atomah i ih prilozheniya
  • Anomaliya Pionerov: spisok problem


    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.
  • Obzory preprintov astro-ph

    Vypusk N99
    astro-ph za 15 - 28 fevralya 2005 goda: izbrannye stat'i

    Goryachie temy nedeli


    Vspyshka SGR 1806-20

    27 dekabrya proshlogo goda proizoshla vspyshka istochnika myagkih povtoryayushihsya gamma-vspleskov SGR 1806-20. Vspyshka byla bolee chem moshnoi, poetomu dannoe sobytie popalo prakticheski vo vse novostnye lenty mira. Odna iz Astronomicheskih kartinok dnya takzhe byla posvyashena etomu yavleniyu. Krome togo, na Astronete poyavilos' neskol'ko korotkih zametok, posvyashennyh interesneishemu yavleniyu.

    Samye svezhie novosti v gamma-astronomii poyavlyayutsya v special'nom cirkulyare. Dlya napisaniya polnocennoi stat'i trebuetsya vremya. I vot neobhodimyi minimum vremeni proshel. Fevral' uzhe bogat na stat'i o vspyshke SGR 1805-20, o nekotoryh iz nih my rasskazyvaem nizhe.



    Referaty otdel'nyh statei



    astro-ph/0502241 Fizicheskaya model' prodolzhitel'nosti zhizni kvazara (A Physical Model for the Origin of Quasar Lifetimes)
    Authors: Philip F. Hopkins et al.
    Comments: 5 pages, 4 figures, submitted to ApJ Letters

    V ramkah gidrodinamicheskoi modeli akkrecii na chernuyu dyru s uchetom effekta zatmeniya (zateneniya) samoi chernoi dyry gazom i pyl'yu avtory rasschityvayut aktivnoe vremya zhizni kvazara, t.e. to vremya, v techenie kotorogo my mozhem nablyudat' ego kak yarkii opticheskii ob'ekt. Rezul'taty pokazyvayut, chto harakternyi period sostavlyaet 10-20 millionov let. Eto nahoditsya v horoshem soglasii s dannymi nablyudenii. Bez ucheta oslableniya opticheskogo izlucheniya gazom i pyl'yu poluchalos' by vremya poryadka 100 millionov let. Eto vremya sootvetstvuet dlitel'nosti stadii aktivnoi akkrecii.


    astro-ph/0502246 K ponimaniyu bystrogo spada tempa zvezdoobrazovaniya (Towards an understanding of the rapid decline of the cosmic star formation rate)
    Authors: Eric F. Bell et al.
    Comments: To appear in the Astrophysical Journal 1 June 2005. 14 pages with 8 embedded figures

    Na Spitcerovskom kosmicheskom teleskope polucheny dannye po 1500 galaktikam na krasnyh smesheniyah ot 0.65 do 0.75. Cel'yu issledovaniya, predstavlennogo v stat'e, yavlyaetsya ponimanie togo, chto yavlyaetsya prichinoi rezkogo umen'sheniya tempa obrazovaniya zvezd na krasnyh smesheniyah men'she primerno 0.7. Odnim iz vozmozhnyh ob'yasnenii moglo by byt' men'shee chislo sil'no vzaimodeistvuyushih (slivayushihsya) galaktik na malyh krasnyh smesheniyah. Odnako dannaya rabota otvergaet takuyu vozmozhnost'. Avtory polagayut, chto naibolee veroyatnymi effektami, otvetstvennymi za umen'shenie tempa zvezdoobrazovaniya, yavlyayutsya istoshenie zapasov gaza i slabye vzaimodeistviya galaktik s nebol'shimi sputnikami.


    miniobzor astro-ph/0502247 Sverhnovye na bol'shih krasnyh smesheniyah: kosmologicheskie prilozheniya (High Redshift Supernovae: Cosmological Implications)
    Authors: Nino Panagia
    Comments: [14 pages, 4 figures] Invited review, to be published in the proceedings of the Vulcano Workshop 2004 "Frontier Objects in Astrophysics and Particle Physics", F. Giovannelli & G. Mannocchi (eds.), Italian Physical Society, Editrice Compositori, Bologna, Italy (in press)

    Dostatochno podrobnyi obzor tekushego sostoyaniya del v opredelenii kosmologicheskih parametrov po nablyudeniyam dalekih sverhnovyh tipa Ia. Nikakih sensacii net. Nablyudeniya podtverzhdayut model' s 70-procentnym vkladom lyambda-chlena. Tem ne menee obzor interesnyi, osobenno diskussiya o vozmozhnyh problemah etogo podhoda.


    miniobzor astro-ph/0502249 Kratkoe soderzhanie rabochei vstrechi po kosmologii ICGC04 (Summary of ICGC04 Cosmology Workshop)
    Authors: Tarun Souradeep
    Comments: 13 pages, 4 figures, Latex style files included; Chairperson's summary of the Workshop on Cosmology in the proceedings of ICGC-04, Jan.5-10,2004; Journal-ref: Pramana 63 (2004) 891-904

    Obzor bol'shoi konferencii po kosmologii. Interesno okinut' spektr idei i podhodov, sushestvuyushei v etoi burno razvivayusheisya nauke.


    miniobzor astro-ph/0502254 Koronograficheskie metody registracii planet tipa Zemli (Coronographic Methods for the Detection of Terrestrial Planets)
    Authors: A. Quirrenbach
    Comments: Conclusions from a workshop held February 02-06, 2004 at Leiden University; edited by A. Quirrenbach; based on contributions from the workshop participants Note: Because of astro-ph's very stringent size limits on pdf files, the resolution of the figures is poor. Contact the author for full-resolution pdf file

    Obsuzhdaetsya razvitie tehnologii, kotorye pozvolyat sozdat' koronograficheskie sputnikovye teleskopy dlya obnaruzheniya ekzoplanet zemnogo tipa.


    astro-ph/0502265 Obzornyi radiomonitoring ul'tramoshnyh rentgenovskih istochnikov (A Radio Monitoring Survey of Ultra-Luminous X-Ray Sources)
    Authors: E. Koerding, E. Colbert, H. Falcke
    Comments: Accepted for publication in A&A, 11 pages, 4 figures

    Avtory proveli radiomonitoring devyati blizhaishih ul'tramoshnyh rentgenovskih istochnikov (UMI) s pomosh'yu VLA. Ni postoyannogo, ni vspyshechnogo radioizlucheniya ot UMI zaregistrirovano ne bylo (obnaruzhennoe izluchenie dvuh istochnikov v M82 skoree vsego svyazano s ostatkami sverhnovyh). V principe rezul'taty nablyudenii ne pozvolyayut vybrat' odnu iz dvuh osnovnyh gipotez, ob'yasnyayushih prirodu UMI (akkreciya na chernye dyry promezhutochnyh mass ili zhe akkreciya na chernye dyry zvezdnyh mass s obrazovaniem relyativistskih dzhetov). Odnako takie nablyudeniya vazhny, mozhet byt' v dal'neishem avtoram povezet bol'she, i ih rezul'taty smogut pomoch' v vybore modeli dlya UMI.


    astro-ph/0502266 Rezhim propellera pri diskovoi akkrecii na bystrovrashayushuyusya zamagnichennuyu zvezdu (The Propeller Regime of Disk Accretion to a Rapidly Rotating Magnetized Star)
    Authors: Marina M. Romanova et al.
    Comments: 5 pages with 4 figures, LaTeX, macros: emulapj.sty, avi movies are available at http://www.astro.cornell.edu/us-russia/disk_prop.htm; Journal-ref: ApJ Letters, 616, L151-L154, 2004

    Chestno govorya, vsegda nravilis' kartinki i fil'my, demonstriruyushie diskovuyu akkreciyu.
    Rassmotren rezhim propellera pri diskovoi akkrecii na zamagnichennuyu zvezdu. Rezul'taty mogut primenyat'sya kak dlya akkrecii na neitronnye zvezdy i belye karliki, tak i dlya issledovaniya zvezd tipa T Tel'ca.

    Na pervoi serii risunkov pokazano, kak izmenyaetsya konfiguraciya magnitnogo polya. Na levom risunke (T=0, vremya otschityvaetsya v uslovnyh edinicah, sootvetstvuyushih odnomu oborotu s keplerovskoi skorost'yu na rasstoyanii 2.86 radiusa zvezdy) pokazana nachal'naya konfiguraciya polya. Zatem nachinaetsya raschet, i vidno, kak silovye linii formiruyut "magnitnye bashni". V nizhnei chasti dano uvelichennoe izobrazhenie linii vblizi diska dlya T=70.

    Na vtoroi serii risunkov prodemonstrirovano, chto nesmotrya na to, chto sistema nahoditsya na stadii propellera, kogda bystrovrashayusheesya magnitnoe pole prepyatstvuet proniknoveniya veshestva na poverhnost' zvezdy, nekotoraya akkreciya tem ne menee vozmozhna. Na srednem risunke otchetlivo vidno eto "proniknovenie".


    astro-ph/0502279 Eksperiment XENON (The XENON Dark Matter Experiment)
    Authors: XENON Collaboration: Elena Aprile
    Comments: 13 pages, 13 figures

    Lyudi prodolzhayut popytki laboratornoi registracii chastic temnoi materii. Opisyvaemyi eksperiment budet ispol'zovat' tonnu zhidkogo ksenona dlya registracii WIMP - slabovzaimodeistvuyushih chastic. Poka idut testy s mnogo men'shim kolichestvom ksenona, ischislyaemom lish' kilogrammami.


    astro-ph/0502290 Priroda ul'tramoshnyh rentgenovskih istochnikov (The Nature of Ultra Luminous X-ray Sources)
    Authors: C. M. Gutierrez, M. Lopez-Corredoira
    Comments: 9 pages, Accepted for publication in ApJ Letters

    Nadeemsya, chto s samimi ul'tramoshnymi istochnikami nashi chitateli uzhe horosho znakomy (ili po stat'e na Astronete, ili po peredache na radio Svoboda). Vot novye rezul'taty.

    Avtory rassmatrivayut vopros o tom, chto mnogie iz UMI mogut yavlyat'sya fonovymi dalekimi aktivnymi yadrami galaktik. Eto osobenno aktual'no dlya ob'ektov v ellipticheskih galaktikah, a takzhe dlya istochnikov na okrainah galaktik vne oblastei moshnogo zvezdoobrazovaniya. Rassmatrivaetsya shest' istochnikov, dlya kotoryh polucheny horoshie opticheskie spektry. Vse shest' okazalis' dalekimi kvazarami. Vse shest' lezhat dostatochno daleko ot centrov svoih galaktik. Rezul'taty nahodyatsya v horoshem soglasii s bolee rannimi ocenkami. T.o., kak i predpolagalos', dlya UMI, lezhashih vne vydelennyh oblastei (spiral'nye rukava, oblasti zvezdoobrazovaniya, sharovye skopleniya i t.p.) velika dolya fonovyh.


    astro-ph/0502297 Gamma-vspleski ot k