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Gotov spisok
samyh interesnyh rabot
v astro-ph v 2005 g.


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  • 06.05.2005. Dalekoe kol'co Einshteina
  • 07.04.2005. Disk vokrug Vegi
  • 26.03.2005. Ten' Luny
  • 23.03.2005. Novyi rentgenovskii pul'sar v ostatke sverhnovoi
  • 22.03.2005. Eshe o blinnoi teorii ...

    Soderzhanie i bystryi perehod k razdelam obzora


    Stat'i nedeli
    "Luchshie iz luchshih"

  • astro-ph/0512615
    Gigantskaya rentgenovskaya vspyshka GRB 050502B: ukazaniya na pozdnyuyu aktivnost' central'noi mashiny
  • astro-ph/0512630
    Registraciya na RHESSI vysokochastotnyh rentgenovskih oscillyacii v hvoste gipervspyshki SGR 1806-20

    Otdel'nye stat'i
  • Vzlety i padeniya postoyannoi Habbla
  • Rozhdenie i evolyuciya odinochnyh radiopul'sarov
  • Gigantskaya rentgenovskaya vspyshka GRB 050502B: ukazaniya na pozdnyuyu aktivnost' central'noi mashiny
  • Registraciya na RHESSI vysokochastotnyh rentgenovskih oscillyacii v hvoste gipervspyshki SGR 1806-20
  • Klassicheskie resheniya v einshteinovskoi gravitacii i izuchenie nekotoryh modelei kollapsa
  • EXIST: obzor neba v zhestkih luchah dlya poiska chernyh dyr
  • G359.95-0.04: kandidat v pul'sary ryadom s Sgr A*
  • Ogranicheniya na ostyvanie neitronnyh zvezd dlya sluchaya cvetnoi sverhprovodimosti gibridnyh zvezd


    Iz razdela physics
  • Ocenki i nedoocenki nauchnogo kachestva
  • Istoki irakskoi yadernoi programmy


    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 N123
    astro-ph za 24 - 31 dekabrya 2005 goda: izbrannye stat'i

    Referaty otdel'nyh statei



    obzor astro-ph/0512584 Vzlety i padeniya postoyannoi Habbla (The Ups and Downs of the Hubble Constant)
    Authors: G.A. Tammann
    Comments: 30 pages, 12 figures, 2 tables. 79th Annual Scientific Meeting of the Astronomische Gesellschaft 2005, Karl-Schwarzschild-Lecture, to appear in Reviews in Modern Astronomy, 19, 1

    Daetsya istoriya issledovanii postoyannoi Habbla. Obsuzhdayutsya razlichnye metodiki ee opredeleniya. Osobo obsuzhdayutsya neopredelennosti v sovremennyh metodah.


    astro-ph/0512585 Rozhdenie i evolyuciya odinochnyh radiopul'sarov (Birth and Evolution of Isolated Radio Pulsars)
    Authors: C.-A. Faucher-Giguere, V. M. Kaspi
    Comments: 73 preprint pages, including 8 tables and 15 figures. ApJ submission revised following the referee's comments

    Populyacionnye issledovaniya pul'sarov ochen' vazhny i aktual'ny. Krome togo, ih neobhodimo regulyarno nezavisimo povtoryat', t.k. postoyanno rastet statistika i nahodyatsya kakie-to novye svoistva.

    V rabote predstavleno detal'noe chislennoe modelirovanie populyacii radiopul'sarov v nashei Galaktike. Po rezul'tatam avtorov poluchaetsya, chto temp rozhdeniya nemnogo (v poltora raza) vyshe, chem poluchalos' v bolee rannih rabotah. Vse mozhno ob'yasnit' bez zatuhaniya magnitnogo polya, a skorosti mogut imet' odnomodovoe, no ne maksvellovskoe raspredelenie.


    astro-ph/0512615 Gigantskaya rentgenovskaya vspyshka GRB 050502B: ukazaniya na pozdnyuyu aktivnost' central'noi mashiny (The Giant X-ray Flare of GRB 050502B: Evidence for Late-Time Internal Engine Activity)
    Authors: A. D. Falcone et al.
    Comments: accepted for publication in ApJ

    Spustya 12 minut posle osnovnogo gamma-vspleska byla zaregistrirovana sil'neishaya rentgenovskaya vspyshka. Eto ne poslesvechenie, eto imenno rentgenovskii vsplesk, prichem samyi moshnyi iz vseh nablyudavshihsya (izredka takie sobytiya uzhe nablyudalis'). Priroda yavleniya do konca neyasna, no avtory vyskazyvayut koe-kakie gipotezy.


    astro-ph/0512630 Registraciya na RHESSI vysokochastotnyh rentgenovskih oscillyacii v hvoste gipervspyshki SGR 1806-20 (Detection with RHESSI of high frequency X-ray oscillations in the tail of the 2004 hyperflare from SGR 1806-20)
    Authors: Anna L Watts, Tod E Strohmayer
    Comments: 5 pages, 5 figures using emulateapj. Accepted for publication in ApJ Letters

    Ya uzhe rasskazyval ob otkrytii oscillyacii v hvostah gigantskih vspyshek. Te oscillyacii sootvetstvovali chastotam okolo 90 Gc. Teper' zhe obnaruzheny bolee vysokochastotnye na 600 Gc. S chem svyazany eti kolebaniya neyasno.


    dissertaciya gr-qc/0512148 Klassicheskie resheniya v einshteinovskoi gravitacii i izuchenie nekotoryh modelei kollapsa (Classical Solutions in Einstein's Gravity and Study of some Collapsing Models)
    Authors: Ujjal Debnath
    Comments: Ph.D Thesis (2004), 185 Latex pages, 14 figures

    Dissertaciya, posvyashennaya teorii tyagoteniya. Kak obychno, rekomenduyu k prochteniyu vvodnye chasti, soderzhashie poleznuyu obzornuyu informaciyu.


    astro-ph/0512658 EXIST: obzor neba v zhestkih luchah dlya poiska chernyh dyr (EXIST: All-Sky Hard X-ray Imaging and Spectral-Temporal Survey for Black Holes)
    Authors: Jonathan E. Grindlay (and the EXIST Team)
    Comments: 4 pages, 1 figure. Presented at LBL Surveys Workshop; New Astronomy Reviews, Volume 49, iss. 7-9, pp. 436-439 (2005)

    Opisan proekt EXIST, kotoryi dolzhen stat' odnoi iz treh missii, zapuskaemyh v ramkah programmy "Posle Einshteina" (Beyond Einstein). Kazhdyi vitok (t.e. kazhdye poltora chasa) sputnik budet poluchat' obzor neba v zhestkom rentgene. Krome togo, mozhno budet snimat' spektry i imet' pri etom horoshee vremennoe razreshenie dlya izucheniya bystroi peremennosti istochnikov.

    Osnovnye celi - aktivnye yadra galaktik i tesnye dvoinye sistemy.


    astro-ph/0512643 G359.95-0.04: kandidat v pul'sary ryadom s Sgr A* (G359.95-0.04: Pulsar Candidate Near Sgr A*)
    Authors: Q. D. Wang et al.
    Comments: 11 pages, accepted for publication in MNRAS

    Po rentgenovskim nablyudeniya v neposredstvennoi blizosti ot centra nashei Galaktiki obnaruzhena tumannost', kotoruyu avtory identificiruyut kak pul'sarnuyu tumannost'.

    Istochnik nahoditsya vsego v treti parseka ot Sgr A* (konechno, rech' idet o proekcii). V principe, nalichie pul'sara v central'noi oblasti Galaktiki ne dolzhno udivlyat', t.k. tam polno massivnyh zvezd (Sergei Nayakshin delal ochen' interesnyi doklad na etu temu na nedavnei konferencii NEA-2005, prohodivshei v IKI). Tem ne menee, my otmechaem eto otkrytie, poskol'ku eto pervoe ukazanie na nalichie radiopul'sara stol' blizko ot centra Galaktiki.


    nucl-th/0512098 Ogranicheniya na ostyvanie neitronnyh zvezd dlya sluchaya cvetnoi sverhprovodimosti gibridnyh zvezd (Neutron star cooling constraints for color superconductivity in hybrid stars)
    Authors: S. Popov, H. Grigorian, D. Blaschke
    Comments: 10 pages, 9 figures, 1 table

    God zakonchen. Mozhno pozvolit' sebe vol'nost'. Poslednei stat'ei 2005 goda v obzorah budet nasha poslednyaya rabota, posvyashennaya ostyvaniyu neitronnyh zvezd.

    V 2004 godu nami byl predlozhen novyi test krivyh ostyvaniya neitronnyh zvezd. Togda my oprobovali ego na nabore krivyh ostyvaniya obychnyh neitronnyh zvezd (poluchilos', chto test rabotaet neploho, sovsem skoro v Astronomy & Astrophysics vyidet stat'ya na etu temu). Teper' my prilozhili nash test k gibridnym zvezdam.

    Ne budu vlezat' v detali, a rasskazhu ob odnoi sushestvennoi idee, kotoruyu my popytalis' takzhe razvit' v etoi novoi stat'e. Rech' idet o tom, chto, ob'yasnyaya dannye nablyudenii s pomosh'yu teoreticheskih krivyh ostyvaniya, nado pomnit' o spektre mass neitronnyh zvezd. Obychno, massivnye zvezdy ostyvayut bystree. I inogda teoretiki stremyatsya provesti cherez samye holodnye iz izvestnyh neitronnyh zvezd krivye, sootvetstvuyushie samym massivnym. Na nash vzglyad, eto neverno. Delo v tom, chto massivnyh neitronnyh zvezd malo. Teoreticheskie raschety (naprimer, v rabotah gruppy Vusli) pokazyvayut, chto novorozhdennyh neitronnyh zvezd s massoi bolee 1.4-1.5 solnechnyh dolzhno byt' malo (neskol'ko procentov). T.o., maloveroyatno, chto sredi dyuzhiny neitronnyh zvezd s izvestnoi temperaturoi i vozrastom my vidim predstavitelei etogo massivnogo men'shinstva.

    Vot i vse. Eshe raz vseh s proshedshimi prazdnikami. S nailuchshimi pozhelaniyami

    Sergei.



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

    physics/0512238 Ocenki i nedoocenki nauchnogo kachestva (Measures and Mismeasures of Scientific Quality)
    Authors: Sune Lehmann et al.
    Comments: 5 pages, 1 figure

    Ochen' interesnaya stat'ya po naukometrii. Pravda, avtory rabotayut s "legkoi" vyboroki: eto raboty "aktivno praktikuyushih" fizikov-teoretikov po dannym SPIRES. Kak ya ponyal, u avtorov poluchaetsya, chto ocenka "vklada v nauku" po stat'e s maksimal'nym citirovaniem i po mediannomu srednemu (t.e. eto ne usrednennoe citirovanie v raschete na odnu stat'yu, a kolichestvo ssylok na stat'yu, stoyashuyu v seredine ryada, uporyadochennogo po citirovannosti) rabotayut luchshe vsego (v tom chisle i luchshe indeksa, predlozhennogo Hirshem). Osobenno horosho dolzhna rabotat' ocenka po mediane.

    Vazhna eshe i takaya ocenka: dlya realistichnoi ocenki kachestva raboty neobhodimo, chtoby avtor imel poryadka 50 statei. Eto mnogo (esli brat' v raschet tol'ko original'nye publikacii v horoshih zhurnalah, prichem takie, chto vklad avtora dominiruet). Za god tyazhelo sdelat' dazhe 5 takih rabot. T.e. ocenka vozmozhna v srednem tol'ko dlya avtorov, chei vozrast podbiraetsya k 40 godam.

    physics/0512270 Istoki irakskoi yadernoi programmy (The origin of Iraq's nuclear weapons program: Technical reality and Western hypocrisy)
    Authors: Suren Erkman, Andre Gsponer, Jean-Pierre Hurni, Stephan Klement
    Comments: 127 pages, 15 figures

    Bol'shaya stat'ya, posvyashennaya analizu nachal'nyh etapov yadernoi programmy Iraka, a takzhe ee razvitiyu. Avtory polagayut, chto zapadnye pravitel'stva ne predprinimali dolzhnyh popytok po predotvrasheniyu razvitiya rabot po sozdaniyu yadernogo oruzhiya v Irake.


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