The R.A.P.Project "Prosto o slozhnom" "Astro-ph za pervuyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N64) Zvezdy AstroRuneta-2003 Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 13.01.2004. Kol'ca v galo planetarnyh tumannostei Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0401150 Poslednii gamma-vsplesk v nashei Galaktike? astro-ph/0401217 Obzor peremennyh zvezd severnogo neba: otkrytaya versiya astro-ph/0401228 Vklad raznyh stran v astronomicheskie issledovaniya astro-ph/0401270 Rentgenovskoe izluchenie Saturna Otdel'nye stat'i Necentral'noe zazhiganie ugleroda v bystrovrashayushihsya akkreciruyushih Uglerodno-kislorodnyh belyh karlikah Poslednii gamma-vsplesk v nashei Galaktike? Razlozhenie astronomicheskih izobrazhenii na komponenty s primeneniem "sheipletov" Gravitacionnoe linzirovanie na kaustikah temnoi materii (Ne)Stabil'nost' planentyh sistem Otkrytie kompan'ona dvoinoi sistemy v vide ochen' holodnogo belogo karlika Observatoriya polyarizacii neba Evolyuciya spektral'nyh sostoyanii Aql X-1 vo vremya vspleska 2000 g. Chto my znaem i chego my ne znaem o Vselennoi Obzor peremennyh zvezd severnogo neba: otkrytaya versiya Vklad raznyh stran v astronomicheskie issledovaniya Kosmologicheskie parametry iz analiza sobstvennyh mod Sloanovskogo cifrovogo obzora krasnyh smeshenii galaktik Rentgenovskoe izluchenie Saturna Yavlyaetsya li Luna vse eshe udachnym mestom dlya astronomicheskih observatorii? Detektiruemost' krivyh bleska ob'ektov poyasa Koipera Iz razdela physics Asymmetric Errors Still Shrouded in Mystery: The Photon in 1925 Learning-focuses in physics simulation learning situations Following Weyl on Quantum Mechanics: the contribution of Ettore Majorana 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 s 2001 g. 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 Tekushie otkrytiya v FECh Novosti kosmonavtiki Novosti ot UFN Informnauka Perst Podpiska na rassylku obzorov na Subscribe.Ru Druzhestvennaya rassylka "Okno vo Vselennuyu"

Obzory preprintov astro-ph Vypusk N65 astro-ph za 12 - 19 yanvarya 2004 goda: izbrannye stat'i Referaty otdel'nyh statei astro-ph/0401141 Necentral'noe zazhiganie ugleroda v bystrovrashayushihsya akkreciruyushih Uglerodno-kislorodnyh belyh karlikah (Off-Center Carbon Ignition in Rapidly Rotating, Accreting Carbon-Oxygen White Dwarfs) Authors: Hideyuki Saio and Ken'ichi Nomoto Comments: 7 pages, 4 figures Termoyadernoe gorenie belogo karlika vyzyvaet vzryv sverhnovoi tipa Ia. Nachinaetsya etot process v samyh plotnyh sloyah zvezdy: v ee centre. Eto utverzhdenie sovershenno verno dlya nevrashayushihsya, sfericheski simmetrichnyh karlikov. Ono ostaetsya vernym pri medlennom i umerenno bystrom ih vrashenii. No kogda skorost' vrasheniya na ekvatore stanovitsya sravnimoi s Keplerovoi, situaciya menyaetsya: gorenie mozhet nachat'sya ne v centre zvezdy, a na nekotorom rasstoyanii ot nego. Krome togo bystro vrashayushiesya belye karliki dol'she ne zagorayutsya. Iz etogo avtory raboty delayut vyvod, chto sliyaniya dvoinyh belyh karlikov ne dolzhny privodit' k sverhnovym Ia (t.e. takie sverhnovye porozhdayutsya iz medlenno vrashayushihsya belyh karlikov v tesnyh sistemah s normal'nymi kompan'onami). Smotrite, takzhe, stat'yu na svyazannuyu temu "Explosion models for thermonuclear supernovae resulting from different ignition conditions" (astro-ph/0401230). astro-ph/0401150 Poslednii gamma-vsplesk v nashei Galaktike? (The last Gamma Ray Burst in our Galaxy? On the observed cosmic ray excess at particle energy 1 EeV) Authors: Peter L. Biermann et al. Comments: 12 pages, Accepted for publication in Ap. J. Letters V spektre kosmicheskih luchei nablyudaetsya nebol'shoi izbytok na energiyah poryadka 1018 eV v napravlenii centra Galaktiki. Avtory razrabatyvayut interesnuyu ideyu, chto etot izbytok svyazan s poslednim (t.e. samym nedavnim) gamma-vspleskom, proizoshedshim v Mlechnom Puti. astro-ph/0401160 Razlozhenie astronomicheskih izobrazhenii na komponenty s primeneniem "sheipletov" (Modal decomposition of astronomical images with application to shapelets) Authors: R.H. Berry et al. Comments: 12 pages, 17 figures, submitted to MNRAS Razdelenie astronomicheskih izobrazhenii na summu otdel'nyh izobrazhenii opredelennyh tipov ezhednevnoe zanyatie mnogih astronomov. V rabote predlozhen obshii metod dostatochno akkuratnogo vypolneniya podobnogo razlozheniya, dazhe kogda nabor bazisnyh izobrazhenii lineino zavisim, ne ortogonalen i ne polon. Stat'ya mozhet byt' interesna ne tol'ko astronomam. astro-ph/0401162 Gravitacionnoe linzirovanie na kaustikah temnoi materii (Gravitational Lensing by Dark Matter Caustics) Authors: Vakif K. Onemli Comments: 166 pages, PhD Dissertation Eto dissertaciya. Ochen' bol'shoi ob'em i ochen' mnogo materialov. Sut' ee svoditsya k sleduyushemu: chasticy temnoi materii obladayut ochen' slaby vzaimodeistviem (mozhet byt' poetomu oni do sih por ne zaregistrirovany). Potoki temnoi materii besstolknovitel'ny, t.e. oni svobodno prohodyat kak skvoz' drug druga, tak i cherez obychnoe veshestvo. V mestah, gde odin iz potokov "povorachivaet nazad", voznikayut kaustiki, kotorye razdelyayut oblasti s raznym chislom vzaimopronikayushih potokov temnoi materii. Vblizi kaustik plotnosti nevidimogo veshestva ochen' sil'no rastet i eto ne mozhet ne skazat'sya na ih svoistvah kak gravlinz. astro-ph/0401171 (Ne)Stabil'nost' planentyh sistem (The (In)Stability of Planetary Systems) Authors: Rory Barnes, Thomas Quinn Comments: 37 pages, 49 figures, 13 tables, submitted to ApJ Ochen' ob'emnaya stat'ya, posvyashennaya chislennomu issledovaniyu ustoichivosti sushestvuyushih planetnyh sistem. Planetnymi sistemami obladayut zvezdy, u kotoryh otkryto uzhe hotya by dve planety. Takih sistem izvestno okolo desyati, avtory proveli modelirovaniya dlya ipsilon And, HD83443, GJ876, HD82943, 47UMa, HD168443 i, konechno, dlya Solnechnoi sistemy. Modelirovanie zaklyuchalos' v sleduyushem: dlya kazhdoi sistemy 1000 raz provodilos' chislennoe integrirovanie ee dvizheniya na intervale primerno v 1 million let. Parametry sistem bralis' iz nablyudenii i slegka var'irovalis'. Vyvody avtorov takovy: rezonansnye sistemy (HD82943 and GJ876) imeyut ochen' uzkuyu oblast' ustoichivosti; vzaimodeistvuyushie (no bez rezonansa) sistemy (ipsilon And, 47UMa i Solnechnaya sistema) - gorazdo bolee shirokuyu oblast' stabil'nosti; a shirokie sistemy (takih mnogo, avtory proveli modelirovanie tol'ko dlya HD83443 i HD168443) ustoichivy. astro-ph/0401192 Otkrytie kompan'ona dvoinoi sistemy v vide ochen' holodnogo belogo karlika (Discovery of an Ultracool White Dwarf Companion) Authors: J. Farihi Comments: 26 pages, 9 figures, 3 tables, accepted to ApJ U belogo karlika GD392 (teper' GD392A) otkryt vtoroi kompan'on - ochen' holodnyi belyi karlik s nizkoi svetimost'yu. Vtoroi kompan'on, nazvannyi GD392B, nahoditsya ot pervogo na rasstoyanii 46", ih svyaz' byla ustanovlena po odinakovym sobstvennym dvizheniyam. Novyi belyi karlik deistvitel'no ochen' holodnyi: rezul'taty BVRIJHK fotometrii pokazali nalichie v ego spektre absorbcionnoi detali, vyzyvaemoi molekulyarnym(!) vodorodom H2. Segodnya izvestno uzhe neskol'ko podobnyh belyh karlikov, no GD392B pervyi, vhodyashii v dvoinuyu sistemu. astro-ph/0401193 Observatoriya polyarizacii neba (The Sky Polarization Observatory) Authors: S. Cortiglioni et al. Comments: 53 pages, 22 figures, accepted by NewA (in press) SPOrt - The Sky Polarization Observatory (Observatoriya polyarizacii neba). My neodnokratno pisali ob etom proekte, t.k. v nego vovlecheny rossiiskie uchenye i sam apparat budet ustanovlen na MKS. Osnovnoe naznachenie eksperimenta - izuchenie polyarizacii kosmicheskogo izlucheniya (v pervuyu ochered' v prilozhenii k issledovaniyu reliktovogo fona). Nablyudeniya dolzhny nachat'sya v 2006 g. i prodolzhatsya dva goda. Avtory obsuzhdayut sovremennoe sostoyanie apparata ("nachinku" udalos' sushestvenno uluchshit' po-sravneniyu s pervonachal'nym variantom proekta). Krome togo, chitateli naidut rassuzhdeniya o vozmozhnyh rezul'tatah v svete poslednih dostizhenii v izuchenii reliktovogo izlucheniya. astro-ph/0401212 Evolyuciya spektral'nyh sostoyanii Aql X-1 vo vremya vspleska 2000 g. (Evolution of Spectral States of Aql X-1 during the 2000 Outburst) Authors: D. Maitra, C. D. Bailyn Comments: 25 pages, 11 figures. Accepted for publication in ApJ V astronomii pochti vsegda poluchaetsya tak: ishut, gde yarche. Naprimer, esli otkryt novyi tip istochnikov, to kakoi-nibud' odin stanovitsya naibolee izuchennym, "standartnym" i t.d. i t.p. Dlya myagkih rentgenovskih tranzientov (eto malomassivnye rentgenovskie dvoinye s neitronnymi zvezdami) takovoi yavlyaetsya sistema Aql X-1. Eto dvoinaya s orbital'nym periodom okolo 19 chasov, nahodyashayasya na rasstoyanii 4-7 kpk ot nas. Malomassivnyi komponent - zvezda klassa K, zapolnyayushaya polost' Rosha. Primerno raz v god istochnik vspyhivaet. Osen'yu 2000 g. vo vremya ocherednoi vspyshki provodilis' sovmestnye nablyudeniya v optike i rentgene (sputnik RXTE). Takie issledovaniya ochen' vazhny, t.k. fizika processov v myagkih rentgenovskih tranzientah ostaetsya do konca neponyatoi. populyarnyi miniobzor astro-ph/0401213 Chto my znaem i chego my ne znaem o Vselennoi (What We Know and What We Don't Know About the Universe) Authors: Marcelo Gleiser Comments: 5 pages, LaTeX. Keynote address at the International Workshop on Astronomy and Relativistc Astrophysics, October 12-16, Olinda, Brazil. To be published in the proceedings (Int. J. Mod. Phys. D) Korotko i ochen' dostupno izlozheny nekotorye uspehi i problemy sovremennoi kosmologii. Zhelayushie uznat' bol'she, mogut vospol'zovat'sya spiskom literatury, kotoryi rasschitan na shirokuyu publiku (pravda, angloyazychnuyu). Bolee tehnicheskoe rassuzhdenie o kosmologicheskih parametrah mozhno naiti v stat'e How many cosmological parameters? Krome togo, poyavilas' interesnaya zametka o krupnomasshtabnoi strukture Complexity in cosmic structures. katalog astro-ph/0401217 Obzor peremennyh zvezd severnogo neba: otkrytaya versiya (Northern Sky Variability Survey (NSVS): Public data release) Authors: P.R.Wozniak et al. Comments: accepted for AJ Obzor peremennyh zvezd severnogo neba (The Northern Sky Variability Survey =NSVS) postroen po rezul'tatam avtomaticheskogo teleskopa ROTSE-I - pervogo "lovca" gamma-vspleskov. Katalog soderzhit peremennye nablyudeniya zvezd severnogo neba (i chasti yuzhnogo vblizi ekvatora) ot 8 do 15.5 zvezdnoi velichiny. Vsego v kataloge primerno 14 000 000 ob'ektov, na kazhdyi iz kotoryh prihoditsya ot 100 do 500 nablyudenii (v katalog voshli nablyudeniya za 1 god). Katalog dostupen v Internet na portale Sky Database for Objects in Time-Domain (SkyDOT, http://skydot.lanl.gov) Los-Alamosskoi Nacional'noi Laboratorii. astro-ph/0401228 Vklad raznyh stran v astronomicheskie issledovaniya (Impact of astronomical research from different countries) Authors: S.F.Sanchez, C.R.Benn Comments: 6 pages, 3 fig. Accepted for publishing in AN Ispol'zuya 1000 "top-saitnyh" (t.e. samyh citiruemyh) statei, opublikovannyh za 1991-98 gg. (po 125 statei za god), avtory issleduyut vklad raznyh stran, osnovyvayas' na meste raboty pervogo avtora stat'i (v astronomii seichas kak pravilo poryadok avtorov ne alfavitnyi, osobenno, esli avtorov mnogo). Razumeetsya, SShA - na pervom meste. U Rossii malo (vsego 2 top-saitnye stat'i, kak u Brazilii, Bel'gii, Ukrainy). astro-ph/0401249 Kosmologicheskie parametry iz analiza sobstvennyh mod Sloanovskogo cifrovogo obzora krasnyh smeshenii galaktik (Cosmological Parameters from Eigenmode Analysis of Sloan Digital Sky Survey Galaxy Redshifts) Authors: Adrian C. Pope et al., for the SDSS Collaboration Comments: Submitted to