Vozobnovilas' rassylka
Astronomiya segodnya
A Obzoram ispolnyaetsya tri goda!!!
Zaglyanite v Arhiv
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Soderzhanie i bystryi perehod k razdelam obzora
Gl86B: belyi karlik vrashaetsya vokrug zvezdy s planetoi
Ostatki mezhgalakticheskih sverhnovyh
"Skol'zyashii" obzor na XMM-Newton
Otdel'nye stat'i
Iz razdela physics
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.): Poleznye astronomicheskie ssylki. Korotkoe esse ob elektronnyh preprintah. Obzornye stat'i v astro-ph 2001-2003 gg.
Avtor proekta
Diskussii po stat'yam Arhiva
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Druzhestvennye rassylki: "Astronomiya segodnya" "Astronomiya dlya shkol'nikov" "Okno vo Vselennuyu" Spisok astrorassylok |
Obzory preprintov astro-ph
Vypusk N110
astro-ph za 15 - 30 iyunya 2005 goda: izbrannye stat'i Vtoruyu polovinu iyunya avtor provodit na dvuh konferenciyah: ASTROPHYSICAL SOURCES OF HIGH ENERGY PARTICLES AND RADIATION i Physics of Neutron Stars - 2005. Poetomu vypusk ochen' korotkii. Odnako ne budem zabyvat' o priblizhenii ocherednoi godovshiny sozdaniya Obzorov! Tri goda, 110 vypuskov. Est' chto vspomnit'. Spasibo tem, kto golosoval za obzory v konkursah AstroTopa, spasibo vsem podpischikam i chitatelyam! Napominayu, chto obsudit' publikacii mozhno na forumah Zvezdocheta i Saintifik.Ru, a takzhe v blogah na saite Elementy.Ru. Pol'zuyas' sluchaem upomyanu i dva angloyazychnyh professional'nyh saita, gde obsuzhdayutsya publikacii Arhiva: CosmoCoffe i PhysComments. Nadeyus', chto tretii god ne stanet dlya Obzorov poslednim. Do vstrechi!
Referaty otdel'nyh statei
Authors: L. Foschini et al. Comments: 6 pages, 4 figures, accepted for publication on Advances in Space Research, Special Issue Proceedings of 35th COSPAR (Paris, France, 18-25 July 2004) Prodolzhayutsya popytki ponyat' prirodu ul'tramoshnyh rentgenovskih istochnikov (UMI). Sushestvuet neskol'ko modelei, opisyvayushih akkrecionnye diski. Sredi nih i t.n. "hudye" (slim) diski. Avtory prilagayut dannuyu model' v istochniku H-8 v galaktike v Treugol'nike (M33). Po-mneniyu avtorov nablyudeniya horosho opisyvayutsya v ramkah sushestvovaniya tesnoi dvoinoi sistemy s chernoi dyroi obychnoi (zvezdnoi) massy, akkreciruyushei so sverheddingtonovskim (t.e. sverhkriticheskim) tempom.
Authors: M. Mugrauer, R. Neuhaeuser Comments: 5 pages, 5 figures, MNRAS letter Vpervye udalos' obnaruzhit' chrezvychaino interesnuyu sistemu! Neskol'ko let nazad bylo pokazano, chto zvezda Gl86 imeet planetu. Krome togo, na nebol'shom rasstoyanii byl obnaruzhen eshe odin ob'ekt, odnako bylo neyasno svyazan li on s Gl86 ili net. Avtoram etoi raboty udalos' pokazat', chto svyazan. Prichem eto ne obychnaya zvezda, a belyi karlik. T.o. teper' my znaem o sushestvovanii ekzoplanet v dvoinyh sistemah s belymi karlikami.
Authors: T. Regimbau et al. Comments: talk given at the GWDAW9 (Annecy, 2004) to be published in CQG Privodyatsya ocherednye ocenki tempa sliyaniya dvoinyh neitronnyh zvezd. Raschitany chastoty nablyudenii takih sobytii nazemnymi detektorami (LIGO, VIRGO). V svoih nachal'nyh konfiguraciyah, soglasno avtoram, interferometry ne smogut uvidet' sliyaniya (temp sostavlyaet primerno raz v 125-150 let), zato posle "dovodki" detektory smogut registrirovat' po neskol'ku sliyanii v god. Zametim, chto eti ocenki menee optimistichny, chem, skazhem, raschety Lipunova i dr.
Authors: G.L. Fogli et al. Comments: Invited article, submitted to "Progress in Particle and Nuclear Physics"; all the figures in eps format can be download from the webpage http://www.ba.infn.it/~now2004/PPNP_review/ Po slovam avtorov obzor vklyuchaet v sebya vse poslednie dannye po izmereniyam mass neitrino, a takzhe drugih parametrov, harakterizuyushih eti chasticy.
Authors: Ramesh Narayan Comments: To appear in a forthcoming Special Focus Issue on "Spacetime 100 Years Later" published by the New Journal of Physics. The article, finalized in October, 2004, consists of 21 pages of text, 3 figures and 6 movies (found at http://www.cfa.harvard.edu/~narayan/NJP) Obzor po chernym dyram. V osnovnom opisyvayutsya chernye dyry zvezdnyh mass v tesnyh dvoinyh sistemah.
Authors: Olaf Reimer Comments: 15 pages, 5 figures, 1 table; High Energy Gamma-Ray Astronomy: 2nd International Symposium, Proceedings of the conference held 26-30 July 2004 in Heidelberg (Germany). Edited by Felix A. Aharonian, Heinz J. Voelk, and Dieter Horns. AIP Conference Proceedings, Volume 745. New York: American Institute of Physics, 2005., p.184-198 EGRET - eto gamma-detektor, ustanovlennyi na bortu kosmicheskoi observatorii im. Komptona. Sredi neskol'kih soten zaregistrirovannyh im istochnikov znachitel'naya dolya ostalas' neotozhdestvlennoi. Chto eto mogut byt' za ob'ekty, yarko svetyashie v gamma-diapazone, no nevidimye v drugih? Etoi probleme i posvyashen obzor. Nazovem tri tipa ob'ektov: aktivnye yadra galaktik, mikrokvazary i molodye neitronnye zvezdy. Imenno oni pretenduyut na ob'yasnenie prirody neotozhdestvlennyh istochnikov EGRET. Podrobnosti mozhno naiti v stat'e. Sm. takzhe stat'yu "Large-Scale Anisotropy of EGRET Gamma Ray Sources".
Authors: Dan Maoz, Eli Waxman, Abraham Loeb Comments: ApJ, submitted, post-referee version, 8 pages Nedavno byli otkryty sverhnovye tipa Ia, proishodyashie v mezhgalakticheskom prostranstve. Avtory zadayutsya voprosom: "Kak dolzhny vyglyadet' ostatki takih sverhnovyh i kak mozhno ih pronablyudat'?" Otvet na vopros o detektiruemosti sil'no zavisit ot togo, sohranilas' li vokrug vzryvayusheisya zvezdy kakoe-to veshestvo. Esli veshestvo sohranilos', to situaciya ne sushestvenno budet otlichat'sya ot sluchaya obychnyh vspyshek v galaktike. Odnako problema sohraneniya okolozvezdnoi materii issledovana ploho, i avtory polagayut, chto kak raz poisk ostatkov mozhet prolit' svet etu problemu. S drugoi storony, vne zavisimosti ot nalichiya veshestva poryadka 10 staryh ostatkov na kvadratnyi gradus mozhet byt' obnaruzheno v radiodiapazone v skoplenii galaktik v Deve.
Authors: A. M. Read et al. Comments: 3 pages, 4 figures, XMM-Newton EPIC Consortium Meeting, Schloss Ringberg, Germany, April 2005, to appear in MPE Report Ochen' interesnaya rabota. Vo vremya perenavedeniya sputnika XMM-Newton apparatura prodolzhaet rabotat'. Esli sobrat' eti dannye, to poluchitsya neplohoi obzor znachitel'noi chasti neba! Nesmotrya na maloe vremya ekspozicii za schet ogromnoi sobirayushei ploshadi chuvstvitel'nost' obzora sravnima s parametrami programm nablyudenii, provodivshihsya 15-20 let nazad. Obrabotka dannyh tol'ko nachalas'. Avtory planiruyut poluchit' dannye po 25% nebesnoi sfery.
Authors: M. Sazhin et al. Comments: Submitted to ApJ Letters. 5 pages, 3 figures Avtory prodolzhayut issledovanie ob'ekta, kotoryi schitayut pervym primerom linzy na kosmicheskoi strune. V dannoi stat'e pokazano, chto dva izobrazheniya spektral'no identichny na urovne dostovernosti 99.9%.
My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing).
Authors: James B. Hartle Comments: 9 pages, 2 figures, revtex4 Obychno na mladshih kursah obshaya teoriya otnositel'nosti prakticheski ne zatragivaetsya (dazhe na fizicheskih special'nostyah). V dannoi zametke avtor obsuzhdaet pochemu eto vse-taki nado delat', i kak luchshe podoiti k izlozheniyu materiala.
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