Rambler's Top100Astronet    
  po tekstam   po klyuchevym slovam   v glossarii   po saitam   perevod   po katalogu
 

Nachalsya novyi konkurs
AstroTop


Podpiska na rassylku obzorov astro-ph na Subscribe.Ru
Chislo podpischikov perevalilo 2700! Spasibo vam, druz'ya!





  • 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/0701488
    Pervaya pryamaya registraciya gravitacionnoi mikrolinzy v napravlenii galakticheskogo baldzha
  • astro-ph/0701748
    Korotkie zhestkie gamma-vspleski
  • astro-ph/0701766
    Pervye nazemnye izmereniya atmosfernogo cherenkovskogo izlucheniya kosmicheskih luchei

    Otdel'nye stat'i
  • Obrazovanie i rannyaya evolyuciya massivnyh chernyh dyr
  • Pervaya pryamaya registraciya gravitacionnoi mikrolinzy v napravlenii galakticheskogo baldzha
  • Gamma-vspleski v epohu Sfiwt
  • 1aya studencheskaya rabochaya vstrecha po astronomii i astrofizike
  • Kataklizmicheskie peremennye
  • Rezyume po potere massy - sub'ektivnyi vzglyad
  • Korotkie zhestkie gamma-vspleski
  • Pervye nazemnye izmereniya atmosfernogo cherenkovskogo izlucheniya kosmicheskih luchei
  • Gde zhe vse gravizvezdy? Predely na model' gravizvezd iz dannyh ob akkreciruyushih chernyh dyrah
  • Modificirovannaya n'yutonovskaya dinamika - MOND- i ee primeneniya dlya novoi fiziki
  • Izmerenie vetra v srednei atmosfere Marsa v periody ravnodenstviya i solncestoyaniya


    Iz razdela physics
  • Popravka k indeksu Hirsha za schet ucheta samocitirovaniya


    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.
  • Obzory preprintov astro-ph

    Vypusk N148
    astro-ph za 13 - 31 yanvarya 2007 goda: izbrannye stat'i

    Referaty otdel'nyh statei



    miniobzor astro-ph/0701394 Obrazovanie i rannyaya evolyuciya massivnyh chernyh dyr (Formation and early evolution of massive black holes)
    Authors: Piero Madau
    Comments: 8 pages, Invited talk at the IAU Symposium 238: "Black Holes: From Stars to Galaxies -Across the Range of Masses". Prague, August 2006

    Poleznyi obzor po chernym dyram. Rech' idet ob ob'ektah, voznikayushih iz samyh pervyh zvezd (populyaciya III) na bol'shih krasnyh smesheniyah, i ob ih evolyucii. Imenno sliyaniya etih chernyh dyr i akkreciya na nih privodyat k formirovaniyu sverhmassivnyh chernyh dyr v yadrah galaktik. No uzhe na bol'shih krasnyh smesheniyah, edva vozniknuv, chernye dyry mogut nachat' siyat' kak pervye mikrokvazary... V obshem - interesnyi i ochen' ponyatnyi obzor.

    V dopolnenie stoit obratit' vnimanie na obzor astro-ph/0701512.


    astro-ph/0701488 Pervaya pryamaya registraciya gravitacionnoi mikrolinzy v napravlenii galakticheskogo baldzha (The first direct detection of a gravitational microlens toward the Galactic bulge)
    Authors: S. Kozlowski et al.
    Comments: 6 pages, 5 figures; submitted to ApJ

    Obychno, kogda nablyudayut effekt mikrolinzirovaniya, to ob'ekt-linza ostaetsya neizvestnym. Chto-to temnoe i massivnoe proletelo mezhdu nami i istochnikom - i vse. Redko-redko udaetsya potom rassmotret' samu linzu. Vot vpervye razglyadeli zvezdochku, vyzvavshuyu sobytie MACHO-95-BLG-37. Ei okazalas' zvezda tipa Solnca (chut' men'she i holodnee, spektral'nyi klass K2) s massoi okolo 0.6 solnechnyh na rasstoyanii 3.5 kpk ot nas.


    obzor astro-ph/0701520 Gamma-vspleski v epohu Sfiwt (Gamma-Ray Bursts in the Swift Era)
    Authors: Bing Zhang
    Comments: Invited review for Chinese Journal of Astronomy & Astrophysics, 60 pages, to appear in 2007, ChJAA, 7, 1-50

    Daetsya podrobnyi obzor poslednih rezul'tatov po gamma-vspleskam s uporom na dannye sputnika Swift.


    materialy konferencii astro-ph/0701577 1aya studencheskaya rabochaya vstrecha po astronomii i astrofizike (1st Workshop of Astronomy and Astrophysics for Students)
    Authors: N.R. Napolitano, M. Paolillo
    Comments: Conference proceedings of the "1st Workshop of Astronomy and Astrophysics for Students" held in Naples (ITALY) on April 19-20, 2006. Published by INFN-Naples, eds. N.R. Napolitano & M. Paolillo.

    Konechno, zagolovok nuzhdaetsya v ogovorkah, ibo studencheskih konferencii provodilos' i provoditsya ochen' mnogo. Itak, predstavleny materialy studencheskoi konferencii, proshedshei v aprele 2006 g. v Italii. Sami materialy udobnee skachat' otsyuda.


    obzor astro-ph/0701654 Kataklizmicheskie peremennye (Cataclysmic Variables)
    Authors: Robert Connon Smith
    Comments: 41 pages, 11 figures, invited review for Contemporary Physics

    Podrobnyi obzor po kataklizmicheskim peremennym. Eto ochen' interesnye tesnye dvoinye sistemy s belymi karlikami, pokazyvayushie bol'shoe raznoobrazie astrofizicheskih yavlenii.


    miniobzor astro-ph/0701740 Rezyume po potere massy - sub'ektivnyi vzglyad (Mass loss summary - a personal perspective)
    Authors: Jorick S. Vink
    Comments: 5 pages, Conference summary on stellar winds to appear in "Mass loss from stars and the evolution of stellar clusters". Proc. of a workshop held in honour of H.J.G.L.M. Lamers, Lunteren, The Netherlands. Eds. A. de Koter, L. Smith and R. Waters (San Francisco: ASP)

    Est' takoi izvestnyi astrofizik - Lamers. V ego chest' byla provedena rabochaya vstrecha, posvyashennaya ego kon'ku - potere massy massivnymi zvezdami.

    V korotkom obzore summirovany osnovnye poslednie razrabotki i dostizheniya v dannoi oblasti.


    obzor astro-ph/0701748 Korotkie zhestkie gamma-vspleski (Short-Hard Gamma-Ray Bursts)
    Authors: Ehud Nakar
    Comments: A review, 125 pages, 12 figures. Physics Reports - Bethe Centennial Volume, in press

    Bol'shoi podrobnyi obzor po korotkim gamma-vspleskam.

    Poslednie dannye (ya neodnokratno pisal ob etom v obzorah) vozrodili interes k etomu klassu gamma-vspleskov. Avtor obsuzhdaet ih otlichiya ot dlinnyh gamma-vspleskov, a takzhe vozmozhnye intrepretacii.

    Sm. takzhe stat'yu astro-ph/0701748, posvyashennuyu praroditelyam korotkih gamma-vspleskov.


    astro-ph/0701766 Pervye nazemnye izmereniya atmosfernogo cherenkovskogo izlucheniya kosmicheskih luchei (First ground based measurement of atmospheric Cherenkov light from cosmic rays)
    Authors: HESS Collaboration: F.A. Aharonian, et al
    Comments: 14 pages, 13 figures, accepted for publication in Phys. Rev. D

    S kosmicheskimi luchami do sih por svyazano mnogo zagadok. Vrode by, dannye nedavnih nablyudenii proyasnili proishozhdenie galakticheskih kosmicheskih luchei: ih porozhdayut ostatki sverhnovyh. Odnako ostaetsya neyasnym, chto zhe za chasticy i v kakih proporciyah oni sostavlyayut potok kosmicheskih luchei. Eto mogut byt' elektrony, eto mogut byt' yadra (ot prosto protonov do yader zheleza). Chtoby razobrat'sya v sostave luchei nuzhno izmeryat' energii, t.e. stroit' spektr.

    Spektr energii kosmicheskih luchei tyanetsya na mnogo dekad. V raznyh diapazonah ispol'zuyut raznye podhody, svyazannye kak so specifikoi izmerenii, tak i prosto s kolichestvom chastic, delo v tom, chto chislo chastic rezko padaet s rostom energii. V diapazone ot 1 GeVa do 1 PeVa ispol'zovalis' pribory, ustanovlennye na ballonah. Odnako dlya bolee vysokih energii dannyi podhod ne goditsya, da i uzhe na sotnyah TeV hochetsya imet' chto-to bolee effektivnoe. Ploshad' detektora, ustanovlennogo na vozdushnom share, mala, a znachit mozhet okazat'sya, chto ni odnoi chasticy vysokoi energii v nego ne popadet ili, po krainei mere, ih budet nedostatochno dlya postroenii tochnogo spektra. Poetomu bylo by horosho ispol'zovat' nazemnye izmereniya. I sootvetstvuyushaya metodika byla razrabotana.

    Ideya metoda, predlozhennogo v 2001 godu Kiedoi s soavtorami, sostoit v tom, chto nado nablyudat' cherenkovskoe izluchenie pervichnoi chasticy. V sluchae nazemnyh izmerenii s pomosh'yu sistemy tipa H.E.S.S. my kak by imeem detektor s ploshad'yu v 100 000 kvadratnyh metrov (rabochim telom detekta vystupaet atmosfera). Poetomu mozhno registrirovat' izluchenie mnogih chastic s vysokimi energiyami.

    V rabote predstavleny rezul'taty issledovanii pochti 2000 sluchaev detektirovaniya pervichnogo izlucheniya chastic kosmicheskih luchei na ustanovke H.E.S.S. Udalos' vydelit' sobytiya, v kotoryh chasticei bylo yadro zheleza, i postroit' ih energeticheskii spektr v diapazone ot 13 do 200 TeV. Ozhidaetsya, chto v nedalekom budushem udast'sya protyanut' spektr i dal'she, v oblast' bolee vysokih energii.


    gr-qc/0701154 Gde zhe vse gravizvezdy? Predely na model' gravizvezd iz dannyh ob akkreciruyushih chernyh dyrah (Where are all the gravastars? Limits upon the gravastar model from accreting black holes)
    Authors: Avery E. Broderick, Ramesh Narayan
    Comments: 11 pages, 4 figures, Classical and Quantum Gravity, Volume 24, Issue 3, pp. 659-666 (2007)

    Gravizvezdy - eto takaya dovol'no strannaya al'ternativa chernym dyram. Po pravde skazat', vse al'ternativy chernym dyram vyglyadyat stranno, tak chto sredi nih gravizvezdy vpolne tak sebe normal'ny :). Avtory obsuzhdayut, kak dannye po akkreciruyushim (ili akkrecirovavshim) chernym dyram mogut zakryt' model' gravizvezd, ili zotya by sil'no ee ogranichit'.


    obzor astro-ph/0701848 Modificirovannaya n'yutonovskaya dinamika - MOND- i ee primeneniya dlya novoi fiziki (The modified Newtonian dynamics-MOND-and its implications for new physics)
    Authors: Jacob D. Bekenstein
    Comments: Pedagogical introduction to MOND and review of modern developments. To appear shortly in Contemporary Physics; LaTeX with 6 figures, 15 pages

    Pozhalui, imenno blagodarya rabotam (i avtoritetu) Bekenshteina, modificirovannaya gravitaciya stala v poslednie gody ves'ma populyarnoi, tochnee rech' idet o podhode, predlozhennom samim Bekenshteinom i nazyvaemom TeVeS.

    V stat'e daetsya pdrobnyi i v meru dostupnyi obzor vo vsyu etu tematiku. Vsem interesuyushimsya nastoyatel'no rekomenduetsya.

    Obsudit' v ZhZh-soobshestve ru_astroph.
    Obsudit' na Astroforume v Nauchnoi panorame.



    astro-ph/0701901 Izmerenie vetra v srednei atmosfere Marsa v periody ravnodenstviya i solncestoyaniya (Wind measurements in Mars' middle atmosphere at equinox and solstice: IRAM Plateau de Bure interferometric CO observations)
    Authors: R. Moreno et al.
    Comments: 2 pages, Second workshop on Mars atmosphere modelling and observations, held February 2 7 - March 3, 2006 Granada, Spain. Edited by F. Forget, M.A. Lopez-Valverde, M.C. Desjean, J.P. Huot, F. Lefevre, S. Lebonnois, S.R. Lewis, E. Millour, P.L. Read and R.J. Wilson. Publisher : LMD, IAA, AOPP, CNES, ESA, 2006., p.134, Espagne (2006)

    Srednyaya atmosfera sootvetstvuet vysotam ot 40 do 80 km. Okazyvaetsya, chto ee mozhno aktivno i uspeshno izuchat' s pomosh'yu nazemnyh teleskopov. Eto dostigaetsya ispol'zovaniem interferometrov, rabotayushih v millimetrovom diapazone. Osnovnym rezul'tatom, predstavlennym v stat'e, yavlyaetsya regulyarnoe nablyudenie sil'nyh (100 m/s) vetrov v ekvatorial'noi oblasti.




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


    physics/0701231 Popravka k indeksu Hirsha za schet ucheta samocitirovaniya (Self-citation corrections for the Hirsch index)
    Authors: Michael Schreiber
    Comments: 6 pages, 6 figures, submitted to EPL

    Obsuzhdaetsya, kak samocitirovanie vliyaet na indeks Hirsha. Na konkretnyh (no anonimnyh) primerah pokazano, chto vliyanie dostatochno veliko. Konechno, dlya uchenyh s bol'shim indeksom (t.e. kogda ssylok ochen' mnogo) vliyainie samocitirovaniya nahoditsya na urovne neskol'kih procentov, no pri malom indekse samocitirovanie mozhet byt' opredelyayushim. (Voobshe govorya, na moi vzglyad, ves' analiz citiruemosti, na kakom by parametre eto vse ni osnovyvalos', dolzhen provodit'sya s uchetom samocitiruemosti, t.e., poprostu govorya, samossylki nado vykidyvat'. Prichem imeyutsya vvidu ne tol'ko ssylki avtora na samogo sebya, no i ssylki soavtorov po dannoi stat'e na dannuyu zhe stat'yu.)

    Krome togo, v stat'e privoditsya dostatochno polnoe obsuzhdenie indeksa Hirsha, i daetsya horoshaya bibliografiya po rabotam, svyazannym s dannym pokazatelem aktivnosti uchenogo.



    Publikacii s klyuchevymi slovami: astro-ph - elektronnye preprinty
    Publikacii so slovami: astro-ph - elektronnye preprinty
    Sm. takzhe:
    Vse publikacii na tu zhe temu >>

    Ocenka: 3.0 [golosov: 16]
     
    O reitinge
    Versiya dlya pechati Raspechatat'

    Astrometriya - Astronomicheskie instrumenty - Astronomicheskoe obrazovanie - Astrofizika - Istoriya astronomii - Kosmonavtika, issledovanie kosmosa - Lyubitel'skaya astronomiya - Planety i Solnechnaya sistema - Solnce


    Astronet | Nauchnaya set' | GAISh MGU | Poisk po MGU | O proekte | Avtoram

    Kommentarii, voprosy? Pishite: info@astronet.ru ili syuda

    Rambler's Top100 Yandeks citirovaniya