The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N103) 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/0504236 Avtomaticheskoe detektirovanie klassicheskih novyh s pomosh'yu neironnyh setei astro-ph/0504357 Pervyi katalog gamma-vspleskov INTEGRAL SPI-ACS astro-ph/0504380 Novaya galakticheskaya populyaciya istochnikov gamma-luchei ochen' vysokih energii Goryachie temy nedeli Chernye dyry promezhutochnyh mass Otdel'nye stat'i Obrazovanie massivnyh chernyh dyr v sharovyh skopleniyah Avtomaticheskoe detektirovanie klassicheskih novyh s pomosh'yu neironnyh setei Vspyshki normal'nyh zvezd. Nevernaya klassifikaciya FH Leo kak novopodobnoi peremennoi Pervyi katalog gamma-vspleskov INTEGRAL SPI-ACS Korotkoe vvedenie v kosmicheskuyu topologiyu Ot dvoinyh neitronnyh zvezd k gamma-vspleskam Novaya galakticheskaya populyaciya istochnikov gamma-luchei ochen' vysokih energii Astrofizicheskie processy vysokih energii Iz razdela physics Relyativistskaya kvantovaya dinamika Kosmofizicheskie effekty v strukture gistogramm al'fa-raspada Plutoniya 239 Matematicheskaya teoriya citirovaniya 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 Avtor proekta Sergei Popov 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@ Elementy.Ru 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 N104 astro-ph za 11 - 20 aprelya 2005 goda: izbrannye stat'i Goryachie temy nedeli Chernye dyry promezhutochnyh mass Na etoi nedele nas privlekli raboty, posvyashennye chernym dyram promezhutochnyh mass i rodstvennym ob'ektam. Pervaya stat'ya - Geometrical Effect of Supercritical Accretion Flows: Observational Implications of Galactic Black-Hole Candidates and Ultraluminous X-ray Sources - posvyashena ul'tramoshnym istochnikam (UMI). Napomnim, chto est' dve osnovnye idei, prizvannye ob'yasnit' prirodu etih ob'ektov. Eto chernye dyry promezhutochnyh mass i napravlennost' izlucheniya pri akkrecii na obychnye chernye dyry. V etoi rabote avtory s pomosh'yu chislennogo modelirovaniya vosproizvodyat spektry akkreciruyushih chernyh dyr. Rech' idet ob ochen' vysokih tempah akkrecii, poetomu obrazuetsya tolstyi disk vokrug kompaktnogo ob'ekta. V rezul'tate togo, chto disk zatmevaet central'nuyu goryachuyu oblast' pri znachitel'nyh uglah nablyudeniya otnositel'no osi vrasheniya chernoi dyry (voobshe govorya, vse tri osi - chernoi dyry, orbital'noi ploskosti, ploskosti diska - dolzhny primerno sovpadat'), spektr budet sushestvennym obrazom zaviset' ot togo smotrim li my pryamo v zherlo, ili zhe luch zreniya lezhit blizhe k ploskosti diska. Nadeemsya, chto podobnoe modelirovanie pomozhet v dal'neishem proyasnit' prirodu UMI. Eshe dve raboty raskazyvayut o massivnyh chernyh dyrah v sharovyh skopleniyah. V pervoi iz nih - The dynamical fingerprint of intermediate mass black holes in globular clusters - opisano, kak mozhno obnaruzhit' prisutstvie takogo ob'ekta po ego dinamicheskomu vozdeistviyu na zvezdy skopleniya. Vtoraya - Formation of Massive Black Holes in Globular Clusters - rasskazyvaet o sobstvenno formirovanii massivnyh chernyh dyr v sharovyh skopleniyah (ob etoi rabote podrobnee rasskazano nizhe). Nakonec, eshe odna rabota posvyashena rostu massy chernyh dyr v processe ierarhicheskogo obrazovaniya galaktik. Bolee konkretno avtory stat'i Growth of Intermediate Massive Black Holes in the Hierarchical Formation of Small Spiral Galaxies in the High-z Universe rassmatrivayut nebol'shie spiral'nye galaktiki na bol'shih krasnyh smesheniyah. Referaty otdel'nyh statei astro-ph/0504203 Obrazovanie massivnyh chernyh dyr v sharovyh skopleniyah (Formation of Massive Black Holes in Globular Clusters) Authors: Nozomu Kawakatu, Masayuki Umemura Comments: 8pages, 5figures, accepted for publication in ApJ (Volume 628, August 1, 2005 issue) Avtory rassmatrivayut vozmozhnost' obrazovaniya massivnyh (t.e. sushestvenno tyazhelee "zvezdnyh") chernyh dyr v sharovyh skopleniyah. Scenarii, predlagaemyi imi, takov. V nachale v centre massivnogo sharovogo skopleniya obrazuetsya massivnyi gazovyi disk. Zatem iz etogo diska obrazuetsya massivnaya zvezda, kotoraya potom, v svoyu ochered', prevrashaetsya v chernuyu dyru. Massa takih chernyh dyr budet poryadka 300 solnechnyh. Otmetim, chto dlya formirovaniya chernoi dyry nuzhna ochen' bol'shaya massa skopleniya - bolee 6 millionov mass solnca v zvezdah na segodnyashnii den'. Takih skoplenii ochen' malo. Massa samoi chernoi dyry pri etom okazyvaetsya prakticheski nezavisyashei ot massy skopleniya. astro-ph/0504236 Avtomaticheskoe detektirovanie klassicheskih novyh s pomosh'yu neironnyh setei (Automated Detection of Classical Novae with Neural Networks) Authors: S. Feeney, V. Belokurov et al. Comments: 28 pages, 8 figures, The Astronomical Journal (in press) Neironnye seti mozhno "nauchit'" vydelyat' opredelennye tipy signalov. Eto ispol'zuetsya dlya vydeleniya razlichnyh tipov peremennyh zvezd i sobytii mikrolinzirovaniya v obzorah. V dannom sluchae rech' idet o testirovanii sistemy po poisku klassicheskih novyh. Ispol'zovany dannye kollaboracii POINT-AGAPE, kotoraya provodit poisk sobytii mikrolinzirovaniya v M31. Pokazano, chto sistema smogla chetko vydelit' 9 iz 13 izvestnyh novyh (ili dazhe 11, esli provesti dopolnitel'nyi analiz). Krome testov polucheny i original'nye rezul'taty. Vydeleno 19 novyh kandidatov v klassicheskie novye, prichem o 4 iz nih avtory govoryat kak ob ochen' horoshih kandidatah. astro-ph/0504341 Vspyshki normal'nyh zvezd. Nevernaya klassifikaciya FH Leo kak novopodobnoi peremennoi (Outbursts on normal stars. FH Leo misclassified as a novalike variable) Authors: T. H. Dall, L. Schmidtobreick, N. C. Santos, G. Israelian Comments: 8 pages, 7 figures. Accepted for publication in A&A Dvoinaya zvezda FH Leo byla klassificirovana kak novopodobnaya peremennaya. Etot vyvod osnovyvalsya na vspleske, zaregistrirovannom sputnikom Hipparcos. Odnako issledovaniya avtorov, kotorye poluchili spektry vysokogo razresheniya dlya dannoi sistemy, pokazyvayut, chto obe komponenty yavlyayutsya normal'nymi zvezdami pozdnih tipov (ot pozdnego F do rannego G). Esli v samom dele obe zvezdy yavlyayutsya normal'nymi, to nablyudavshiisya vsplesk stanovitsya zagadochnym yavleniem. Avtory rassmotreli neskol'ko variantov ob'yasneniya, no ne nashli ih udovletvoritel'nymi. Sootvetstvenno, oni predlagayut plany budushih issledovanii. katalog astro-ph/0504357 Pervyi katalog gamma-vspleskov INTEGRAL SPI-ACS (The 1st INTEGRAL SPI-ACS Gamma-Ray Burst Catalogue) Authors: A. Rau et al. Comments: 10 pages, 9 figures, A&A accepted Predstavlen pervyi katalog gamma-vspleskov, nablyudavshihsya priborom SPI (tochnee ego zashitnoi sistemoi ACS) na sputnike INTEGRAL, za dva s lishnim goda (vplot' do yanvarya 2005). V katalog vklyucheno 388 vspleskov (tochnee, kandidatov vo vspleski, t.k. ne dlya vseh iz 388 sobytii est' podtverzhdeniya s drugih apparatov, a dannyh SPI-ACS ne vsegda dostatochno dlya chetkogo opredeleniya prirody yavleniya). miniobzor astro-ph/0504365 Korotkoe vvedenie v kosmicheskuyu topologiyu (A brief introduction to cosmic topology) Authors: M.J. Reboucas Comments: 14 pages, 5 figures. Short review of the topics addressed with details in the lectures. To appear in the proc. of the XIth Brazilian School of Cosmology and Gravitation, eds. M.Novelo and S.E. Perez Bergliaffa, American Institute of Physics Conference Proceedings (2005) Nazvanie govorit samo za sebya. Sovershenno otdel'no upomyanu, chto na Astrofeste Mihail Prohorov budet delat' populyarnyi doklad na etu temu. miniobzor astro-ph/0504368 Ot dvoinyh neitronnyh zvezd k gamma-vspleskam (From Neutron Star Binaries to Gamma-ray bursts) Authors: S. Rosswog Comments: Proceedings of the 4th Workshop Gamma-Ray Bursts in the Afterglow Era, Rome,18-22 October 2004 Kak izvestno, kosmicheskie gamma-vspleski chetko raspadayutsya na t.n. dlinnye (dlitel'nost' bolee 10 sekund) i korotkie (menee sekundy). Polagayut, chto korotkie mogut byt' svyazany so sliyaniyami neitronnyh zvezd. Etomu i posvyashen obzor. Tem, kto pro eto nichego ne chital, nastoyatel'no rekomenduyu. astro-ph/0504380 Novaya galakticheskaya populyaciya istochnikov gamma-luchei ochen' vysokih energii (A new population of very high energy gamma-ray sources in the Milky Way) Authors: F.A. Aharonian (for the H.E.S.S. Collaboration) Comments: Science, Vol 307, Issue 5717, 1938-1942 Ochen' interesnaya (i dostupnaya) rabota. Nablyudeniya na nazemnyh gamma-teleskopah (proekt H.E.S.S.) pokazali nalichie kompaktnyh istochnikov v ploskosti Galaktiki, dlya kotoryh ne udalos' naiti dvoinikov v drugih diapazonah spektra. Sootvetstvenno, priroda etih istochnikov absolyutno neyasna. obzor astro-ph/0504401 Astrofizicheskie processy vysokih energii (High energy astrophysical processes) Authors: Todor Stanev Comments: 16 pages, 10 postscript figures, to appear in Proceedings of the Venice 2005 Workshop on neutrino telescopes V osnovnom obsuzhdayutsya processy, v kotoryh rozhdayutsya neitrino sverhvysokih energii. Eto aktual'naya tema, t.k. uzhe stroyashiesya ustanovki (naprimer, Auger) smogut ih registrirovat'. Takzhe rassmotreny i potoki kosmicheskih neitrino bolee nizkih energii. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). kniga physics/0504062 Relyativistskaya kvantovaya dinamika (Relativistic Quantum Dynamics: A non-traditional perspective on space, time, particles, fields, and action-at-a-distance) Authors: Eugene V. Stefanovich Comments: book, 469 pages, 38 figures, 15 tables Vozmozhno, komu-to budet interesno poznakomitsya s netradicionnym, no horosho prorabotannym vzglyadom na problemy kvantovoi mehaniki. S biografiei i drugimi rabotami Stefanovicha mozhno poznakomit'sya na etom saite. physics/0504092 Kosmofizicheskie effekty v strukture gistogramm al'fa-raspada Plutoniya 239 (Cosmo-physical effects in structure of the daily and yearly periods of change in the shape of the histograms constructed by results of measurements of alpha-activity Pu-239) Authors: S.E.Shnoll, K.I.Zenchenko, N.V.Udaltsova Comments: 15 pages, 10 figures Navernyaka mnogie slyshali o rabotah gruppy Shnolya (byla i stat'ya v UFN, i vystuplenie u Gordona, i mnogochislennye seminary...). Napomnyu, chto sut' svoditsya k obnaruzheniyu podobiya diagramm razlichnyh processov (naprimer, radioaktivnogo raspada) pri nablyudenii v udalennyh tochkah (raznye goroda), a takzhe k shodstvu v izmeneniyah posledovatel'nostei diagramm. Reakciya na eti raboty dostatochno neodnoznachnaya. Na moi vzglyad, osnovnaya problema v tom, chto otbor "pohozhih" diagramm proizvoditsya na glaz. Po dannoi stat'e mozhno poznakomitsya s sovremennym sostoyaniem issledovanii gruppy Shnolya. physics/0504094 Matematicheskaya teoriya citirovaniya (A mathematical theory of citing) Authors: M.V. Simkin, V.P. Roychowdhury Comments: Eti avtory uzhe neodnokratno obrashalis' k teme citirovaniya nauchnyh rabot. Ideya ih sostoit v tom, chto znachitel'naya dolya citirovanii svyazana ne s izucheniem original'nyh rabot, a so "sluchainym" vypisyvaniem ssylok iz drugih rabot. V novoi stat'e avtory modificiruyut svoyu model' "sluchainogo citirovaniya". Oni po-prezhnemu nastaivayut na svoem rezul'tate, chto mnogie iz horosho citiruemyh rabot popali "na vershinu" v nekotorom smysle sluchaino. T.e. raboty-to zasluzhennye, tol'ko vmesto nih mogli "vzletet'" kakie-to drugie blizkie po soderzhaniyu stat'i. Zato i u horoshih, no malocitiruemyh rabot (avtory nazyvayut ih "spyashimi krasavicami") est' shans popast' "na vershinu", esli oni sami popadut v "volnu". Vernut'sya k nachalu stranicy

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