The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N102) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 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 ... 04.03.2005. Mira v rentgene Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0504086 Disk vokrug Vegi - Syurpriz so Spitcera astro-ph/0504150 Precezionnyi taiming RX J0806.3+1527: ukazanie na gravitacionnoe izluchenie ot ul'trakompaktnoi dvoinoi astro-ph/0504187 Otkrytie pervogo "rentgenovskogo lesa" vdol' lucha zreniya v napravlenii Mkn 421 Otdel'nye stat'i Virtual'naya observatoriya: ot zadumki do osushestvleniya Otkrytie 10 pul'sarov v skaniruyushem obzore Aresibo Pervichnye chernye dyry - poslednie dostizheniya Skirmionnye zvezdy Magnitary Disk vokrug Vegi - Syurpriz so Spitcera Precezionnyi taiming RX J0806.3+1527: ukazanie na gravitacionnoe izluchenie ot ul'trakompaktnoi dvoinoi Reliktovye gravitacionnye volny i kosmologiya Kakie zvezdy porozhdayut gamma-vspleski? Sostoyaniya chernyh dyr: akkreciya i dzhety Otkrytie pervogo "rentgenovskogo lesa" vdol' lucha zreniya v napravlenii Mkn 421 Iz razdela physics O Gugl'-slave uchenyh i drugih populyacii 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. Obsudit' na forume Scientific.RU Obsudit' na forume Zvezdocheta Avtory proekta Sergei Popov Mihail Prohorov Postav'te u sebya nashu knopku! Proekt razmeshen na saitah: Vy mozhet takzhe razmestit' na svoem saite nashu lentu obzorov Novostnye lenty Novosti astronomii ot PRAO Novosti kosmonavtiki Novosti ot UFN Astronomer.Ru Informnauka Researcher@ Grani.Ru Perst Podpiska na rassylku obzorov na Subscribe.Ru Druzhestvennye rassylki: "Astronomiya segodnya" "Astronomiya dlya shkol'nikov" "Okno vo Vselennuyu" Spisok astrorassylok

Obzory preprintov astro-ph Vypusk N103 astro-ph za 01 - 10 aprelya 2005 goda: izbrannye stat'i Referaty otdel'nyh statei miniobzor astro-ph/0504006 Virtual'naya observatoriya: ot zadumki do osushestvleniya (Virtual Observatory: From Concept to Implementation) Authors: S.G. Djorgovski, R. Williams Comments: Invited review, to appear in proc. "From Clark Lake to the Long Wavelength Array: Bill Erickson's Radio Science", eds. N. Kassim, M. Perez, W. Junor & P. Henning, ASPCS vol. 3xx, in press (2005). Latex file, 14 pages, 4 eps figures, all included Postoyanno rastushii potok astronomicheskih dannyh trebuet novyh podhodov k ih obrabotke. Uzhe dovol'no davno byl predlozhen proekt t.n. "Virtual'noi observatorii". V obzore rasskazyvaetsya ob istorii proekta i segodnyashnem sostoyanii del s ego realizaciei. astro-ph/0504019 Otkrytie 10 pul'sarov v skaniruyushem obzore Aresibo (Discovery of 10 pulsars in an Arecibo drift-scan survey) Authors: D.R. Lorimer et al. Comments: 8 pages, 3 figures, accepted for publication in MNRAS Na teleskope v Aresibo proveden ocherednoi poisk pul'sarov. Osmotr 1147 kvadratnyh gradusov privel k registracii 33 pul'sarov, iz kotoryh 10 - novye. Sredi novyh avtory vydelyayut eshe odin dvoinoi millisekundnyi pul'sar s malomassivnym kompan'onom. Oni polagayut, chto etot ob'ekt blagodarya shirokoi orbite i malomu ekscentrisitetu voidet v chislo pul'sarnyh par, ispol'zuyushihsya dlya proverki OTO. miniobzor astro-ph/0504034 Pervichnye chernye dyry - poslednie dostizheniya (Primordial Black Holes - Recent Developments) Authors: B.J.Carr Comments: 12 pages, 6 figures, 22nd Texas Symposium at Stanford 12-17 December 2004 T.n. Tehasskii simpozium - eto svoego roda "otchetnaya konferenciya" v astrofizike vysokih energii, provodimaya ezhegodno. Vse nachalos' s konferencii v Tehase v 1963 godu (otsyuda i nazvanie), odnako iz 22-h konferencii bol'shinstvo proshlo v drugih mestah po vsemu miru. Tradicionno na etih vstrechah mnogo obzornyh dokladov. Vashemu vnimaniyu predstavlyaetsya odin iz nih. Kak izvestno, est' chetyre osnovnyh tipa chernyh dyr, obsuzhdaemyh v astrofizike: sverhmassivnye chernye dyry v centrah galaktik chernye dyry zvezdnyh mass - kompaktnye ostatki evolyucii massivnyh zvezd chernye dyry promezhutochnyh mass, obsuzhdaemye v svyazi s ul'tramoshnymi rentgenovskimi istochnikam pervichnye chernye dyry. Poslednie obrazovalis' v molodoi Vselennoi. Naimenee massivnye iz nih uspeli polnost'yu (ili pochti celikom) isparit'sya. Esli chernye dyry isparyayutsya do konca, to naibolee mnogochislennymi seichas dolzhny byt' pervichnye dyry s massami poryadka 1015 g. Nikakih "polozhitel'nyh" nablyudenii pervichnyh chernyh dyr tak i net. Poetomu v obzore rech' idet v osnovnom o teorii, verhnih predelah i vozmozhnyh putyah registracii pryamyh svidetel'stv sushestvovaniya etih reliktov rannei Vselennoi. astro-ph/0504075 Skirmionnye zvezdy: astrofizicheskaya motivaciya i prilozheniya (Skyrmion Stars: Astrophysical motivations and implications) Authors: Prashanth Jaikumar, Rachid Ouyed Comments: 10 pages and 7 figures Skirmionnye zvezdy (Skyrmion stars aka SkyS) - eto po suti neitronnye zvezdy s ochen' interesnym uravneniem sostoyaniya, kotoroe dopuskaet sushestvovanie massivnyh ob'ektov (vplot' do 3.45 mass Solnca pri ochen' bystrom vrashenii). Nekotorye dannye izmerenii mass neitronnyh zvezd v tesnyh dvoinyh sistemah dayut dovol'no vysokie znacheniya: >2 mass Solnca. Poetomu uravneniya sostoyaniya, dlya kotoryh sushestvovanie takih ob'ektov vozmozhno, predstavlyayut bol'shoi interes. miniobzor astro-ph/0504077 Magnitary (Magnetars) Authors: Jeremy S. Heyl Comments: 12 pages, 5 figures, XXII Texas Symposium on Relatistic Astrophysics Podrobnyi obzor, posvyashennym magnitaram - sil'nozamagnichennym neitronnym zvezdam, ch'ya energetika svyazana s magnitnym polem (a ne s vrasheniem, ostyvaniem ili akkreciei). My zhe v svoyu ochered' gotovim stat'yu o magnitarah i gigantskih vspyshshkah istochnikov myagkih povtoryayushihsya gamma-vspleskov dlya zhurnala Zemlya i Vselennaya. S predvaritel'nym variantom stat'i mozhno poznakomit'sya zdes'. Krome togo, lekciya ob etih ob'ektah budet prochitana na astrofeste. astro-ph/0504086 Disk vokrug Vegi - Syurpriz so Spitcera (The Vega Debris Disk -- A Surprise from Spitzer) Authors: K. Y. L. Su et al. Comments: 13 pages, 17 figures, accepted for publication in ApJ. (Figures 2, 3a, 3b and 4 have been degraded to lower resolutions.) Kosmicheskii teleskop imeni Spitcera poluchil dostatochno detal'nye izobrazheniya oskolochnogo (debris) diska vokrug Vegi. Izobrazhenie na dline volny 70 mikrometrov Na dline volny 70 mikron (na risunke) disk imeet razmer 543 a.e. (70 uglovyh sekund). Na bolee korotkih dlinah on kompaktnee (330 a.e. na 24 mikronah), a na bolee dlinnyh - obshirnee (815 a.e. na 160 mikronah). astro-ph/0504150 Precezionnyi taiming RX J0806.3+1527: ukazanie na gravitacionnoe izluchenie ot ul'trakompaktnoi dvoinoi (Precision X-ray Timing of RX J0806.3+1527 with CHANDRA: Evidence for Gravitational Radiation from an Ultracompact Binary) Authors: Tod E. Strohmayer Comments: 23 pages, 9 figures, AASTeX, accepted for publication in the Astrophysical Journal K ul'trakompaktnym dvoinym otnosyat sistemy, sostoyashie iz dvuh vyrozhdennyh ob'ektov, naprimer (i v osnovnom), iz dvuh belyh karlikov. Sistema RX J0806.3+1527 yavlyaetsya kandidatom v takie ob'ekty, prichem zapodozreno, chto dvoinaya imeet naimen'shii iz izvestnyh orbital'nyh periodov. Rentgenovskoe izluchenie RX J0806.3+1527 pokazyvaet pul'sacii. Eto mozhet byt' kak rezul'tatom orbital'nogo vrasheniya, tak i rezul'tatom vrasheniya akkreciruyushego belogo karlika vokrug svoei osi. Osnovyvayas' na dannyh dlitel'nogo taiminga, provedennogo na sputnike Chandra, avtor pokazyvaet nalichie stabil'nogo umen'sheniya perioda. Eto naibolee horosho ob'yasnyaetsya gravitacionnym izlucheniem dvoinoi. Orbital'nyi period pri etom, razumeetsya, umen'shaetsya (unositsya kak raz energiya orbital'nogo vrasheniya). Zdes' voznikaet interesnyi moment. Esli period i v samom dele orbital'nyi, to istochnikom rentgenovskogo izlucheniya ne mozhet byt' akkreciya. V ul'trakompaktnoi dvoinoi akkreciya dolzhna idti s bolee legkogo belogo karlika na bolee tyazhelyi. Pri etom zvezdy dolzhny "raz'ezzhat'sya". T.e. orbital'nyi period budet uvelichivat'sya. Koli zhe my vidim umen'shenie perioda, to, polagaet avtor, nuzhno pridumyvat' kakoi-to inoi, vozmozhno elektro-magnitnyi, mehanizm vydeleniya energii. obzor gr-qc/0504018 Reliktovye gravitacionnye volny i kosmologiya (Relic Gravitational Waves and Cosmology) Authors: L. P. Grishchuk Comments: 31 pages including 8 figures; expanded version of a talk at the international conference eldovich-90', Moscow, December 2004; http://hea.iki.rssi.ru/Z-90 Stat'ya predstavlyaet soboi rasshirennuyu versiyu doklada, prochitannogo Leonidom Petrovichem v dekabre proshlogo goda v Moskve. Krome sobstvenno obzora po gravitacionnym volnam v kosmologii v rabote est' i memorial'naya chast', posvyashennaya Ya.B. Zel'dovichu. astro-ph/0504175 Kakie zvezdy porozhdayut gamma-vspleski? (Which Massive stars are Gamma-Ray Burst Progenitors?) Authors: Jelena Petrovic et al. Comments: 40 pages V nastoyashee vremya naibolee populyarnaya teoriya t.n. "dlinnyh" gamma-vspleskov (napomnim, chto gamma-vspleski chetko delyatsya na dlinnye - bolee 10 sekund - i korotkie - poryadka sekundy i men'she) osnovyvaetsya na kollapse massivnoi zvezdy. Zvezda, po vsei vidimosti, prevrashaetsya v chernuyu dyru, vokrug kotoroi formiruetsya tor (aka bublik). Obrazuyutsya dzhety. V itoge, esli nam povezlo i dzhet napravlen na nas, my vidim gamma-vsplesk. Vstaet vopros: kakie zvezdy v konce svoego zhiznennogo puti porozhdayut vse eti interesneishie posledstviya? Dlya generacii gamma-vspleska neobhodimo, chtoby pered vzryvom yadro zvezdy dostatochno bystro vrashalos'. Rezul'taty raboty pokazyvayut, chto v bez ucheta vliyaniya magnitnogo polya neobhodimyi temp vrasheniya mozhet byt' dostignut. A vot prisutstvie polya vse portit. Avtory issleduyut evolyuciyu odinochnyh zvezd i zvezd, vhodyashih v dvoinye sistemy. Tam est' mnogo nereshennyh problem, poetomu avtory ne prihodyat k kakomu-libo odnoznachnomu vyvodu. Tak chto "mnogoe sdelano, no mnogoe eshe predstoit ..." miniobzor astro-ph/0504185 Sostoyaniya chernyh dyr: akkreciya i dzhety (Black Hole States: Accretion and Jet Ejection) Authors: Tomaso Belloni Comments: 8 pages, 3 figures, in "Interacting Binaries: Accretion, Evolution and Outcomes", eds. L. A. Antonelli, et al., Procs. Interacting Binaries Meeting, Cefalu, Italy, June 2004, in press (AIP) Chernye dyry v tesnyh dvoinyh sistemah nablyudayutsya kak rentgenovskie istochniki blagodarya akkrecii. Nablyudenii pokazali nalichie raznyh rezhimov, otlichayushihsya (s nablyudatel'noi tochki zreniya) po spektral'nym harakteristikam, moshnosti izlucheniya, modulyacii izlucheniya i t.p. V obzore summiruetsya klassifikaciya sostoyanii istochnikov s chernymi dyrami. Kratko obsuzhdayutsya fizicheskie usloviya v kazhdom iz sostoyanii. Raspechatyvaya stat'yu bud'te vnimatel'ny! Poslednie 24 stranicy (iz 40) pustye, t.k. bol'shie risunki nel'zya bylo pomestit' v Arhiv iz-za ogranicheniya na ob'em. astro-ph/0504187 Otkrytie pervogo "rentgenovskogo lesa" vdol' lucha zreniya v napravlenii Mkn 421 (Chandra Detection of the First X-ray Forest along the Line of Sight To Mkn 421) Authors: Fabrizio Nicastro et al. Comments: 51 pages, 18 figures. Accepted for publication in the ApJ Dostatochno horosha izvesten t.n. "Laiman-al'fa les". Eto les spektral'nyh linii, nablyudaemyi v opticheskih spektrah dalekih kvazarov. Poka svet idet do nas, on prohodit cherez oblaka vodoroda. V rezul'tate etogo v spektre poyavlyayutsya spektral'nye linii Laiman-al'fa s raznymi krasnymi smesheniyami, sootvetstvuyushimi otdel'nym oblakam. Eti dannye effektivno ispol'zuyutsya. naprimer, dlya izucheniya krupnomasshtabnoi struktury. Avtory stat'i po rentgenovskim nablyudeniyam na sputnike Chandra sumeli obnaruzhit' analogichnoe yavlenie v rentgenovskom diapazone. Iz etih dannyh oni poluchayut razlichnye ocenki na plotnost' temnogo barionnogo veshestva i plotnost' volokon, izluchayushih v rentgenovskom diapazone. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0504034 O Gugl'-slave uchenyh i drugih populyacii (On the Google-Fame of Scientists and Other Populations) Authors: James P. Bagrow, Daniel ben-Avraham Comments: 6 pages, 1 figure, to appear in the proceedings of the 8th Granada seminar on Computational Physics My narochito doslovno pereveli zaglavie stat'i. Tak ono zvuchit zabavnee, chto otrazhaet nashe otnoshenie k samoi idee stat'i. Eto vtoraya stat'ya etih avtorov (pervaya - cond-mat/0310049). Ideya ih zaklyuchalas' v tom, chto ustanovit' stepen' izvestnosti uchenogo mozhno, zadav v kakoi-nibud' poiskovoi sisteme ego imya plyus oblast' issledovanii. Ideya zabavnaya, tol'ko vot rabotaet ona, pozhalui, ili dlya redkih familii, ili dlya deistvitel'no izvestnyh uchenyh, odnofamil'cy kotoryh zavedomo menee izvestny (a togda - chto iskat'? otvet i tak izvesten). Yasno, chto takoi poisk dlya kitaiskih uchenyh, k primeru, prosto bespolezen. Da i u nas ... Odnih Sergeev Popovyh i Mihailov Prohorovyh (i v Dume, i v Forbse ... i v nauke)... "Da malo li v Brazilii Pedrov? I ne soschitat'!" Vtoraya stat'ya kak raz i poluchilas' u avtorov bolee skepticheskoi chem pervaya. V obshem i tak bylo yasno, chto nikakih chetkih zaklyuchenii sdelat' nel'zya. Vernut'sya k nachalu stranicy

Publikacii s klyuchevymi slovami: astro-ph - elektronnye preprinty Publikacii so slovami: astro-ph - elektronnye preprinty
Sm. takzhe: Obzory elektronnyh preprintov Astro-Ph Opublikovan ocherednoi obzor preprintov astro-ph Luchshie raboty v astro-ph v 2006 godu Luchshie nablyudatel'nye raboty v astro-ph za 2005 g. Obzory elektronnyh preprintov Astro-Ph za 2002 g. Obzor obzorov astro-ph: luchshee za pervuyu polovinu 2003 g. Obzor obzorov astro-ph: luchshee za vtoruyu polovinu 2003 g. Vse publikacii na tu zhe temu >>