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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/0502100
    Otozhdestvlenie kosmicheskim teleskopom Spitcer samogo malomassivnogo korichnevogo karlika s okolozvezdnym diskom

  • astro-ph/0502139
    Kosmologiya i astrofizika

  • astro-ph/0502223
    Ukazanie na pervichnoe skuchivanie vokrug kvazara SDSS J1030+0524 na z=6.28


    Goryachie temy nedeli

  • Lekcii i obzory po kosmologii


    Otdel'nye stat'i
  • Pul'siruyushie molodye burye karliki
  • Ostatochnoe proishozhdenie magnitnyh polei A-zvezd i belyh karlikov
  • Zvezdy-praroditeli sverhnovyh s kollapsom yadra
  • Mini-galo s massoi Zemli razrushayutsya prilivami iz-za tesnyh sblizhenii so zvezdami
  • Nedra planet-gigantov: modeli i vazhneishie voprosy
  • Otozhdestvlenie kosmicheskim teleskopom Spitcer samogo malomassivnogo korichnevogo karlika s okolozvezdnym diskom
  • Galakticheskie skollapsirovavshie ob'ekty
  • K voprosu o vyzhivanii i razrushenii mini-galo s massoi poryadka zemnoi
  • Ukazanie na pervichnoe skuchivanie vokrug kvazara SDSS J1030+0524 na z=6.28
  • Poisk ochen' aktivnyh zvezd v Galaktike
  • Usrednennye po disku spektry i krivye bleska Zemli


    Iz razdela physics
  • 100 let brounovskomu dvizheniyu
  • Kalorimetry v astrofizike i fizike elementarnyh chastic


    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 N98
    astro-ph za 01 - 14 fevralya 2005 goda: izbrannye stat'i

    Goryachie temy nedeli


    Lekcii i obzory po kosmologii


    My reshili ob'edinit' zdes' vse lekcii i obzory po kosmologii, poyavivshiesya za pervuyu polovinu fevralya v Arhive.

    obzor astro-ph/0502032 Kosmologicheskie syurprizy modelei temnoi energii dlya "mira-na-brane" (Cosmological Surprises from Braneworld models of Dark Energy)
    Authors: Varun Sahni
    Comments: latex 20 pages, 11 figures; invited talk at the 14th international workshop on General relativity and Gravitation, Yukawa Institute for Theoretical Physics, Nov 29-Dec 3, 2004, Kyoto, Japan

    Dlya resheniya problemy prirody temnoi energii primenyayut raznye podhody, v tom chisle i modeli s branami.

    V obzore obsuzhdayutsya osnovnye idei takogo podhoda. Perechislyayutsya vazhneishie preimushestva, davaemye teoriyami s privlecheniem bran. Tak, naprimer, uskorennoe rasshirenie mozhet byt' lish' epizodom v zhizni Vselennoi, togda snimayutsya problemy, svyazannye s "bol'shim razryvom".


    obzor astro-ph/0502088 Fazovye korrelyacii i topologicheskie parametry krupnomasshtabnoi struktury (Phase Correlations and Topological Measures of Large-scale Structure)
    Authors: Peter Coles
    Comments: 30 pages, 4 figures, to appear in `Data Analysis in Cosmology'', eds V.J. Martinez, E. Martnez-Gonzalez, M.J. Pons-Borderia and E. Saar, Springer-Verlag Lecture Notes in Physics. Uses Springer-Verlag style

    Sovremennaya krupnomasshtabnaya struktura Vselennoi vyrosla iz pervonachal'nyh fluktuacii plotnosti. Po dannym o raspredelenii galaktik ochen' trudno sudit' o parametrah flukuacii v rannei Vselennoi. Gorazdo luchshe dlya etoi celi podhodyat dannye, kotorye mozhno izvlech' iz nablyudenii reliktovogo izlucheniya. Imenno ob etom rasskazyvaet avtor v svoih lekciyah.


    obzor astro-ph/0502093 Analiz polyarizacii kosmichekogo mikrovolnovogo fonovogo izlucheniya (Cosmic microwave background polarization analysis)
    Authors: Anthony Challinor
    Comments: Summer school lecture notes. To appear in Data analysis in cosmology' (Springer LNP), Valencia, 6-10 September 2004

    Kak vy pomnite, sovsem nedavno v neskol'kih eksperimentah byla zaregistrirovana polyarizaciya reliktovogo izlucheniya. Eto chrezvychaino vazhno, t.k. pozvolyaet "vytashit'" principial'no novuyu informaciyu. A vot o tom, chto eto za informaciya, i kak ee mozhno poluchit', chitaite v obzore.


    obzor astro-ph/0502105 Issledovaniya geometrii, topologii i morfologii krupnomasshtabnoi sturktury s ispol'zovaniem funkcionalov Minkovskogo (Exploring the Geometry, Topology and Morphology of Large Scale Structure using Minkowski Functionals)
    Authors: Jatush V. Sheth, Varun Sahni
    Comments: latex, 20 pages, 12 figures; Invited article; to appear in Current Science (special section on Cosmology)

    V obzore rasskazyvaetsya o metode, kotoryi pokazal sebya ochen' effektivnym pri sravnenii dannyh nablyudenii po raspredeleniyu galaktik v bol'shih masshtabah s predskazaniyami razlichnyh teorii.


    lekcii astro-ph/0502139 Kosmologiya i astrofizika (Cosmology and Astrophysics)
    Authors: Juan Garcia-Bellido
    Comments: 76 pages, 36 figures, invited Lectures, to appear in the Proceedings of the CERN-JINR European School of High Energy Physics, San Feliu (Spain), 30 May - 12 June 2004

    Bol'shoi horoshii obzor dlya teh, kto v samom dele hochet razobrat'sya. Obzor s formulami, no tut bez nih i ne oboidesh'sya. Horosho podobrany risunki i tablicy. V obshem, povtorimsya, dlya teh, kto hochet razobrat'sya - poleznaya vesh'!


    lekcii i obzory astro-ph/0502215 Bariony v galo temnoi materii (Baryons in Dark Matter Halos)
    Authors: R.J. Dettmar, U. Klein, P. Salucci
    Comments: 6 pages

    V etoi korotkoi zametke predstavleno vvedenie k sborniku materialov konferencii "Bariony v galo temnoi materii". Odnako vazhno ukazat', chto sami materialy dostupny v elektronnom vide. Na nash vzglyad, eto seichas samyi pravil'nyi sposob. Ne stoit kazhdyi raz izdavat' tirazhom vsego v 100 ekzemplyarov dorogoi malochitaemyi tom. A vot delat' on-lainovye sborniki - ochen' polezno (pri etom dostatochno polozhit' v Arhiv vsego lish' vvedenie i ssylku). Vse eto mozhno tol'ko privetstvovat'.

    Otmetim takzhe, chto materialy mnogih konferencii dostupny cherez sait pos.sissa.it/.


    obzor astro-ph/0502234 Novaya kosmologiya so skopleniyami galaktik (New Cosmology with Clusters of Galaxies)
    Authors: Peter Schuecker
    Comments: 32 pages, 10 figures, invited review at the joint conference of the Czech Astron. Society and the Astron. Gesell. To appear in Reviews in Modern Astronomy 18 on "From Cosmolgical Structures to the Milky Way", ed. S. Roeser

    Novye pribory - v pervuyu ochered' rentgenovskie sputniki - dayut mnogo informacii po skopleniyam galaktik. Skopleniya, v svoyu ochered', yavlyayutsya vazhneishim elementom krupnomasshtabnoi struktury Vselennoi. A, znachit, chrezvychaino vazhny v sovremennoi kosmologii.Obo vsem etom (vklyuchaya novye fizicheskie idei) i idet rech' v obzore.



    Referaty otdel'nyh statei



    astro-ph/0502042 Pul'siruyushie molodye burye karliki (Pulsating young brown dwarfs)
    Authors: Francesco Palla, Isabelle Baraffe
    Comments: 5 pages, 3 figures, A&A Letters (in press)

    Avtory postroili model' goreniya deiteriya v nedrah ochen' malomassivnyh zvezd i buryh (korichnevyh) karlikov. Obnaruzhena neustoichivost', kotoraya mozhet privodit' k pul'saciyam na vremenah poryadka neskol'kih chasov. Avtory obsuzhdayut vozmozhnost' togo, chto peremennost' nekotoryh zvezd etih tipov mozhet byt' svyazana imenno s pul'saciyami.


    astro-ph/0502043 Ostatochnoe proishozhdenie magnitnyh polei A-zvezd i belyh karlikov (A fossil origin for the magnetic fields of A-stars and white dwarfs)
    Authors: J. Braithwaite, H.C. Spruit
    Comments: Appeared in Nature, 431, 819 (2004)

    Est' zvezdy s anomal'no bol'shimi magnitnymi polyami. Eto, naprimer, Ap-zvezdy (k primeru, Aliot v kovshe Bol'shoi Medvedicy), nekotorye belye karliki i magnitary. Avtory ispol'zuyut chislennuyu model' dlya issledovaniya struktury magnitnogo polya vnutri sil'nozamagnichennyh ob'ektov. Pokazano, chto v sluchae Ap-zvezd pole imeet skoree ostatochnuyu (iskopaemuyu) prirodu, t.e. pole sohranilos' eshe so stadii formirovaniya zvezdy, a ne bylo tem ili inym sposobom usileno pozdnee.

    Avtory nashli konfiguraciyu polei, kotoraya mozhet sushestvovat' dostatochno dolgoe vremya. Oni polagayut, chto vo vseh treh perechislennyh vyshe tipah zvezd realizovana odna i ta zhe konfiguraciya polya.


    dissertaciya astro-ph/0502046 Zvezdy-praroditeli sverhnovyh s kollapsom yadra (Progenitors of Core-Collapse Supernovae)
    Authors: John J. Eldridge
    Comments: PhD Thesis, 171 pages, low detail figures, appendices removed to fit onto arXiv.org. For high resolution figures and the appendices goto http://www.iap.fr/users/eldridge/public.html

    Detal'no rassmotreny mnogie aspekty evolyucii zvezd, kotorye v konce svoei zhizni vzryvayutsya kak sverhnovye za schet kollapsa yadra.


    astro-ph/0502049 Mini-galo s massoi Zemli razrushayutsya prilivami iz-za tesnyh sblizhenii so zvezdami (Earth-mass mini-halos are tidally disrupted by close encounters with stars)
    Authors: HongSheng Zhao, James Taylor, Joseph Silk, Dan Hooper
    Comments: 2 pages, no fig

    V proshlom vypuske my rasskazali ob interesneishei rabote Diemand et al. (sm. takzhe stat'yu na Granyah.Ru). Dannaya zhe rabota predstavlyaet soboi kritiku etoi raboty.

    V ochen' korotkoi zametke, ch'ya sut' yasno vyrazhena uzhe zagolovkom, avtory delayut ocenki, kotorye pozvolyayut im zaklyuchit', chto obsuzhdaemye mini-galo temnoi materii s massoi poryadka massy Zemli budut razrushat'sya prilivnym obrazom za schet tesnyh sblizhenii so zvezdami. T.o. Zemlya mozhet ne prohodit' periodicheski cherez takoe mini-galo, a pryamo seichas nahodit'sya v prilivnom hvoste odnogo iz razrushennyh mini-galo..


    obzor astro-ph/0502068 Nedra planet-gigantov: modeli i vazhneishie voprosy (The Interiors of Giant Planets: Models and Outstanding Questions)
    Authors: Tristan Guillot
    Comments: 43 pages, 11 figures, 3 tables. To appear in Annual Review of Earth and Planetary Sciences, vol 33, (2005)

    Bol'shoi obzor, posvyashennyi kak planetam-gigantam v solnechnoi sisteme, tak i ekzoplanetam. Obsuzhdayutsya razlichiya mezhdu nimi. Tak, planety v solnechnoi sisteme obogasheny tyazhelymi elementami po-sravneniyu s Solncem, pri etom stepen' obogashennosti rastet s udaleniem ot Solnca. V tom vremya kak ekzoplanety, kotorye, kak pokazyvayut sovremennye dannye, hotya i sostoyat v osnovnom iz vodoroda i geliya kak i "nashi" giganty, tem ne menee imeyut bol'shoi razbros v soderzhanii bolee tyazhelyh elementov.


    astro-ph/0502100 Otozhdestvlenie kosmicheskim teleskopom Spitcer samogo malomassivnogo korichnevogo karlika s okolozvezdnym diskom (Spitzer Identification of the Least Massive Known Brown Dwarf with a Circumstellar Disk)
    Authors: K. L. Luhman et al.
    Comments: 9 pages, 1 figure, The Astrophysical Journal Letters, 2005, 620, L51

    Nablyudeniya na kosmicheskom infrakrasnom teleskope Spitcer (Spitzer) pozvolili provesti detal'nye issledovaniya odnogo iz molodyh buryh (korichnevyh) karlikov v oblasti zvezdoobrazovaniya v sozvezdii Hameleona.

    Provedennoe modelirovanie pokazalo, chto eto samyi malomassivnyi korichnevyi karlik sredi teh, chto obladayut okolozvezdnymi diskami. Massa ob'ekta sostavlyaet vsego 15 mass Yupitera.

    Eto ochen' vazhnoe otkrytie, t.k. prolivaet svet na detali obrazovaniya odinochnyh malomassivnyh ob'ektov prakticheski vplot' do planetnyh mass.


    miniobzor astro-ph/0502124 Galakticheskie skollapsirovavshie ob'ekty (Galactic Collapsed Objects)
    Authors: Janusz Ziolkowski
    Comments: 15 pages; presented at Vulcano Workshop 2004; to be published in "Frontier Objects in Astrophysics and Particle Physics", 2005

    Horoshii nebol'shoi obzor, posvyashennyi neitronnym zvezdam i chernym dyram. Obo vsem po chut'-chut', no v itoge sobrano mnogo poleznyh dannyh po raznym tipam sistem s kompaktnymi ob'ektami. V osnovnom obsuzhdayutsya massy i magnitnye polya. Krome togo, rassmotreny sistemy s kvaziperiodicheskimi oscillyaciyami (QPO).


    astro-ph/0502213 K voprosu o vyzhivanii i razrushenii mini-galo s massoi poryadka zemnoi (On the survival and disruption of Earth mass CDM micro-haloes)
    Authors: Ben Moore et al.
    Comments: Comment on Zhao etal (astro-ph/0502049)

    Otvet avtorov raboty Diemand et al. na kritiku Zhang et al..

    Mur i dr. polagayut, chto Zhang i ego soavtory zavysili plotnost' zvezd v galo nashei Galaktiki. Ne otricaya v principe fakta vozdeistviya zvezd, Mur i dr. pokazyvayut, chto harakternoe vremya razrusheniya mini-galo dostatochno veliko, chtoby dazhe poteryav vneshnie svoi chasti mini-galo sohranilo yadro i moglo byt' nablyudaemo kak gamma-istochnik. T.e. avtory pervonachal'noi raboty ( Diemand et al.) schitayut, chto ih osnovnye vyvody ostayutsya v sile. kotorye mogli by razrushat' mini-galo.


    astro-ph/0502223 Ukazanie na pervichnoe skuchivanie vokrug kvazara SDSS J1030+0524 na z=6.28 (Evidence for Primordial Clustering Around the QSO SDSS J1030+0524 at z=6.28)
    Authors: M. Stiavelli et al.
    Comments: 5 pages, 3 figures; accepted by ApJL

    Issledovanie okrestnostei dalekogo kvazara s pomosh'yu Kosmicheskogo teleskopa pokazalo izbytok ob'ektov vokrug nego. Istochniki eti byli otobrany po svoim cvetovym harakteristikam takim obrazom, chto mozhno polagat', chto bol'shinstvo iz nih takzhe nahoditsya na z poryadka 6.

    Esli eto rezul'tat budet podtverzhden (v pervuyu ochered' hotelos' by poluchit' dostatochno horoshie spektry ob'ektov, chtoby podtverdit' ih krasnoe smeshenie; otbor po cvetu vse-taki nedostatochno nadezhen dlya odnoznachnogo vyvoda), to eto budet otkrytiem samogo dalekogo iz izvestnyh elementa krupnomasshtabnoi struktury. Poka lish' dlya odnogo ob'ekta poluchen spektr (s pomosh'yu teleskopa Keck I). Krasnoe smeshenie okazalos' ravnym 5.970, chto podtverzhdaet pravil'nost' otbora po cvetu.


    astro-ph/0502235 Poisk ochen' aktivnyh zvezd v Galaktike (A Search for Very Active Stars in the Galaxy)
    Authors: G. Tsarevsky et al.
    Comments: 13 pages

    K "Ochen' Aktivnym Zvezdam" avtory otnosyat ob'ekty s zhestkim rentgenovskim spektrom i aktivnost'yu v radiodiapazone. Eto dovol'no pestroe sobranie istochnikov raznyh tipov: ot eruptivnyh zvezd do mikrokvazarov.

    Proveden poisk vozmozhnyh kandidatov, ispol'zuya dannye sputnika ROSAT i radioteleskopov ATCA i VLA. Posle vyyavleniya 60 kandidatov nekotorye iz nih byli otnablyudeny v opticheskom diapazone. Opticheskie nablyudeniya pozvolili otozhdestvit' odin iz kandidatov kak tesnuyu dvoinuyu sistemy, odin kak aktivnoe galakticheskoe yadro (t.e. eto ne zvezdnyi ob'ekt, a fonovyi istochnik). Lyubopytny dva ob'ekta bez detalei v spektre. Dlya odnogo iz nih avtory obnaruzhili sobstvennoe dvizhenie. Oni predpolagayut, chto, vozmozhno, my imeem delo s novym tipom ob'ektov. (Otmetim, chto spektr bez detalei, "pohozhest'" na lacertidy i zametnoe sobstvennoe dvizhenie mogut ukazyvat' na to, chto ob'ekt yavlyaetsya odinochnoi neitronnoi zvezdoi).


    astro-ph/0502238 Usrednennye po disku spektry i krivye bleska Zemli (Disk-averaged Spectra & light-curves of Earth)
    Authors: G. Tinetti et al.
    Comments: 34 pages, 19 figures. submitted to Astrobiology

    Esli my hotim iskat' ekzoplanety zemnogo tipa, to nam neobhodimo luchshe ponyat' svoistva Zemli, a takzhe kak oni mogut izmenyat'sya pri neznachitel'nyh variaciyah parametrov planety.

    Avtory proveli komp'yuternoe modelirovanie s cel'yu vychisleniya spektrov i krivyh bleska planet tipa Zemli, no s neskol'ko otlichayushimisya parametrami atmosfery, poverhnosti i t.p. Preskazaniya mogut byt' ispol'zovany pri obrabotke dannym budushih special'nyh kosmicheskih teleskopov, prednaznachennyh dlya poiska planet tipa nashei.



    My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing).

    cond-mat/0502053 100 let brounovskomu dvizheniyu (100 Years of Brownian motion)
    Authors: Peter Hnggi, Fabio Marchesoni
    Comments: Submitted to CHAOS as the introduction to the special issue `100 Years of Brownian Motion''

    Napomnim, chto 2005 g. ob'yavlen "Godom Fiziki" blagodarya 100-letnemu yubileyu serii rabot Einshteina. Konechno, v pervuyu ochered' vse vspominayut raboty, sostavivshie special'nuyu teoriyu otnositel'nosti (uzhe tut otmetim tonkost' v nazvanii - bolee pravil'nyi perevod - chastnaya teoriya otnositel'nosti). Navernoe, vo vtoruyu ochered' vspominayut rabotu po fotoeffektu (v konce koncov imenno za nee byla prisuzhdena Nobelevskaya premiya). Odnako togda zhe vyshla i rabota, posvyashennaya brounovskomu dvizheniyu. (Zdes' stoit vspomnit' vtoruyu tonkost', pravil'nee bylo by braunovskoe.)

    Dannaya stat'ya yavlyaetsya vvedeniem k yubileinomu tomu, posvyashennomu 100-letnemu yubileyu teorii brounovskogo dvizheniya. Sootvetstvenno, stat'ya ochen' dostupna i soderzhit dostatochno obshie rassuzhdeniya o vazhnosti raboty Einshteina, o dal'neishem razvitii teorii i t.p.


    obzor physics/0502065 Kalorimetry v astrofizike i fizike elementarnyh chastic (Calorimeters in Astro and Particle physics)
    Authors: Klaus Pretzl
    Comments: 23 pages

    Daetsya obzor razrabotki i ispol'zovaniya kalorimetrov v astrofizike i fizike elementarnyh chastic. Obzor dostatochno ponyatnyi i podrobnyi, nachinayushiisya s horoshego istoricheskogo vvedeniya. Ego mozhno vsyacheski rekomendovat'.


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