The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N86) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 05.10.2004. Million sekund Kassiopei A 18.09.2004. Rozhdenie lacertidy 16.09.2004. Planeta okolo korichnevogo karlika 14.09.2004. Gravitacionnye linzy i tridcatimetrovyi glaz Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" gr-qc/0410007 Predely na gravitacionnoe izluchenie ot izbrannyh pul'sarov po dannym LIGO astro-ph/0410059 Sverhglubokii poisk neregulyarnyh sputnikov Urana astro-ph/0410136 Ul'traglubokii proekt Chandra-Orion: nablyudeniya i spisok istochnikov Otdel'nye stat'i Vliyanie dvoinyh na galakticheskuyu himicheskuyu evolyuciya Kakaya protozvezda samaya molodaya? Dinamichnoe radionebo Obrazovanie i evolyuciya zvezd ochen' malyh mass i buryh karlikov Pochemu net dzhetov u kataklizmicheskih peremennyh? Sverhglubokii poisk neregulyarnyh sputnikov Urana Reliktovyi fon neitrino ot kosmologicheskih sverhnovyh Vozrozhdenie kosmicheskih strun? Ostatok sverhnovoi Keplera: 400 let Mehanizm sverhnovyh s kollapsom yadra: Sovremennye modeli, probely i puti razvitiya Spektral'nye i vremennyi harakteristiki v rentgenovskom diapazone dlya zvezd molodogo rasseyannogo skopleniya IC 2391 Hameleonnaya temnaya energiya Mikroarksekundnoe nebo kosmicheskaya turbulentnost'. Anizotropiya kosmicheskogo mikrovolnovogo izlucheniya: za standartnymi parametrami Obzor M31 na XMM-Newton Predely na gravitacionnoe izluchenie ot izbrannyh pul'sarov po dannym LIGO Linzirovannye galaktiki na ochen' bol'shih krasnyh smesheniyah Ul'traglubokii proekt Chandra-Orion: nablyudeniya i spisok istochnikov Strapel'ki v kosmicheskih luchah Otkrytie aktivnosti spokoinoi chernoi dyry v NGC821 s pomosh'yu Chandry Katalog "ochen' odinokih" galaktik po dannym pervogo reliza SDSS Otslezhivanie kosmologicheskoi evolyucii po skopleniyam galaktik Iz razdela physics 15.2 teraflopnoe modelirovanie geodinamo na "Simulyatore Zemli" Izuchenie MGD yavlenii na Tokamakah 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 Druzhestvennye rassylki: "Astronomiya dlya shkol'nikov" Zamechatel'nyi sait Astronomiya i teleskopostroenie Novosti nauki na Grani.Ru

Obzory preprintov astro-ph Vypusk N87 astro-ph za 01 - 10 oktyabrya 2004 goda: izbrannye stat'i Referaty otdel'nyh statei obzor astro-ph/0410024 Vliyanie dvoinyh na galakticheskuyu himicheskuyu evolyuciya (The influence of binaries on galactic chemical evolution) Authors: Erwin De Donder, Dany Vanbeveren Comments: 115 pages, many figures and tables, New Astronomy Reviews 2004, 48, 861-975 Imenno tak: 115 stranic, mnogo risunkov i tablic. Bol'shoi obzor po himicheskoi evolyucii Galaktiki. Hotya! Sam obzor na astro-ph nedostupen! Ego nado ili skachivat' iz New Astronomy (esli dostup est'), ili zaprashivat' u avtorov (ili potihonechku skachat' otsyuda). Zato mozhno pochitat' bolee korotkuyu stat'yu Vanbeveren'a astro-ph/0410021, posvyashennuyu izbrannym voprosam evolyucii massivnyh zvezd. astro-ph/0410044 Kakaya protozvezda samaya molodaya? (Which are the youngest protostars? Determining properties of confirmed and candidate Class0 sources by broad-band photometry) Authors: Dirk Froebrich Comments: 21 pages, 2 figures, 4 tables, accepted by ApJS Na osnove vseh opublikovannyh nablyudenii na dlinah voln ot 1 mikrona do 3.5 mm sostavlen spisok 95 podtverzhdennyh kandidatov v ob'ekty "Klassa 0" (predel'no molodye protozvezdy). Bolee podrobnye dannye, po sravneniyu s privedennymi v stat'e, mozhno naiti na saite avtorov http://www.dias.ie/protostars. astro-ph/0410045 Dinamichnoe radionebo (The Dynamic Radio Sky) Authors: James M. Cordes et al. Comments: 16 pages, 4 figures in 4 PostScript files; to appear in "Science with the Square Kilometer Array," eds. C. Carilli and S. Rawlings, New Astronomy Reviews (Elsevier: Amsterdam) Radionablyudeniya pri vsei svoei tochnosti (i uglovoi, i vremennOi) stradayut odnim nedostatkom: tam ochen' trudno vylavlivat' tranzientnye (vspyhivayushie) istochniki. Avtory pokazyvayut, chto vvedenie v stroi SKA pomozhet radikal'no izmenit' situaciyu. Daetsya spisok rekomendacii i po konstrukcii SKA, i po metodam nablyudenii, cel'yu kotorogo yavlyaetsya vydelenie tranzientnyh istochnikov v "slepom poiske". miniobzor astro-ph/0410046 Obrazovanie i evolyuciya zvezd ochen' malyh mass i buryh karlikov (Formation and Evolution of Very Low Mass Stars and Brown Dwarfs) Authors: Jochen Eisloeffel et al. Comments: 6 pages, 2 figures Mnogo li mozhno rasskazat' v dvuh stat'yah po pyat' stranic? Okazyvaetsya - Da. Obrazovanie i evolyuciya buryh (korichnevyh) karlikov - "goryachaya tema" v issledovanii zvezd v poslednie gody. V dannom obzore rassmotreny takie voprosy, kak poslednie nablyudeniya diskov, akkreciya, istecheniya, prostranstvennoe raspredelenie i dvoistvennost' buryh karlikov. Vtoraya stat'ya (astro-ph/0410047) posvyashena skorosti evolyucii vrasheniya dannyh ob'ektov. astro-ph/0410053 Pochemu net dzhetov u kataklizmicheskih peremennyh? (Why there are no jets from cataclysmic variable stars) Authors: Jean-Pierre Lasota, Noam Soker Comments: 6 pages Avtory obrashayut vnimanie na to, chto teplovaya model' formirovaniya dzhetov, razrabotannaya dlya protozvezdnyh ob'ektov okruzhennyh diskom, prekrasno podhodit i dlya kataklizmicheskih peremennyh - dvoinyh zvezd, v kotoryh prisutstvuet belyi karlik, okruzhennyi akkrecionnym diskom. Primenenie teplovoi modeli k etomu novomu tipu sistem pozvolyaet estestvennym obrazom otvetit' na vopros pochemu u nih otsutstvuyut dzhety. Prichinoi etogo okazyvaetsya otnositel'naya slabost' vliyaniya magnitnyh polei na disk v kataklizmicheskih peremennyh. astro-ph/0410059 Sverhglubokii poisk neregulyarnyh sputnikov Urana (Ultra Deep Survey for Irregular Satellites of Uranus: Limits to Completeness) Authors: Scott S. Sheppard, David Jewitt, Jan Kleyna Comments: 22 pages, 10 figures, 3 Tables, appear in AJ Na 8-metrovom infrakrasnom teleskope Subaru byl proizveden poisk malyh neregulyarnyh sputnikov Urana. Soglasno programme byla prosmotrena sfera Hilla Urana (oblast' ego gravitacionnogo vliyaniya, maksimal'noe rasstoyanie na kotorom Uran mozhet uderzhivat' svoi sputniki), vidimaya ploshad' kotoroi (s Zemli) sostavlyaet 3.5 kvadratnyh gradusa. Na urovne ne menee 50% veroyatnosti obnaruzheniya fiksirovalis' vse ob'ekty yarche 26.1 zvezdnoi velichiny. Eto sootvetstvuet ob'ektam radiusov bolee 7 km (v predpolozhenii al'bedo 0.04). Vse ranee izvestnye sputniki v dannom obzore takzhe byli zafiksirovany (bez ispol'zovaniya informacii ob ih polozheniyah). V rezul'tate byli obnaruzheny dva novyh neregulyarnyh sputnika Urana (S/2001 U2 i S/2003 U3). Odin iz etih sputnikov (S/2003 U3) - pervyi neregulyarnyi sputnik s progradnym dvizheniem (v storonu protivopolozhnuyu vrasheniyu planety). obzor astro-ph/0410061 Reliktovyi fon neitrino ot kosmologicheskih sverhnovyh (Relic neutrino background from cosmological supernovae) Authors: Shin'ichiro Ando and Katsuhiko Sato Comments: 29 pages, 8 figures, submitted to New Journal of Physics Otkuda mozhet vzyat'sya neitrinnyi fon? U nego dva dostatochno moshnyh, no ochen' raznyh istochnika: rannyaya i ochen' goryachaya Vselennaya (etot fon podoben elektromagnitnomu reliktovomu izlucheniyu i imeet pochti takuyu zhe temperaturu, tol'ko otdelenie neitrino ot veshestva proizoshlo gorazdo ran'she) i neitrino, ispuskaemye kollapsiruyushimi yadrami kosmologicheskih sverhnovyh. Registraciya neitrino s temperaturoi v neskol'ko gradusov kel'vina na segodnya nereal'no. A vot neitrino ot sverhnovyh vpolne dostupny sovremennym priboram i mogut prinesti ochen' mnogo poleznoi informacii. Imenno etim dvum voprosam posvyashen obzor. astro-ph/0410073 Vozrozhdenie kosmicheskih strun? (Cosmic strings reborn?) Authors: T.W.B. Kibble Comments: 16 pp, Invited Lecture at COSLAB 2004, held at Ambleside, Cumbria, United Kingdom, from 10 to 17 September 2004 Chto takoe "kosmicheskaya struna" - vsem horosho izvestno. Poetomu ob avtore. Kibbl - tvorec kosmicheskih strun (tochnee koncepcii). Lekciya posvyashena nekotoromu renessansu. Neskol'ko let nazad schitalos', chto kosmicheskie struny polnost'yu "zakryty". Dannye (v pervuyu ochered' nablyudeniya kosmicheskogo mikrovolnovogo fona) nalagayut slishkom zhestkie ogranicheniya na ih sushestvovanie. Odnako seichas Kibbl polon entuziazma i nadezhd. Svyazyvaet on eto s dvumya rabotami po gravitacionnomu linzirovaniya. Vo-pervyh, eto nablyudeniya sluchaya neobychnogo linzirovaniya (Sazhin i dr. 2003). Odnoi iz vozmozhnyh interpretacii kak raz yavlyaetsya kosmicheskaya struna. Vo-vtoryh, eto nablyudeniya kolebanii yarkosti u nekotoryh gravitacionnyh linz (Schild et al. 2004). Ponyatno, chto avtoru idei ochen' hochetsya uvidet' nablyudatel'nye podtverzhdeniya teorii. Odnako poka rano govorit', chto kosmicheskie struny otkryty. No vozrozhdenie interesa k etim ob'ektam mozhet privesti k novym otkrytiyam. naprimer, v fizike kosmicheskih luchei sverhvysokih energii. astro-ph/0410081 Ostatok sverhnovoi Keplera: 400 let (Kepler's Supernova Remnant: The view at 400 Years) Authors: W. P. Blair Comments: 6 page V oktyabre 2004 goda ispolnyaetsya 400 let vspyshke Sverhnovoi Keplera (SN 1604 - poslednyaya zafiksirovannaya Sverhnovaya v nashei Galaktike). Segodnya na ee meste nablyudaetsya rasshiryayushayasya tumannost' - ostatok sverhnovoi. Ih vseh istoricheskih sverhnovyh (a ih vsego neskol'ko) SN 1604 ostaetsya samoi zagadochnoi: do sih por sporyat o tipe etoi sverhnovoi, evolyucionnom sostoyanii porodivshei ee zvezdy (predsverhnovoi) i dazhe o rasstoyanii do ostatka (ono izvestno s tochnost'yu do dvoiki). miniobzor astro-ph/0410085 Mehanizm sverhnovyh s kollapsom yadra: Sovremennye modeli, probely i puti razvitiya (The Core Collapse Supernova Mechanism: Current Models, Gaps, and the Road Ahead) Authors: Anthony Mezzacappa Comments: 8 pages, no figures Poiski mehanizma, prevrashayushego kollaps yadra predsverhnovoi vo vzryv sverhnovoi, prodolzhayutsya. Hotya oni dlyatsya uzhe sorok let, tol'ko v poslednee desyatiletie nachali razrabatyvat'sya trehmernye modeli kollapsa. I tol'ko v poslednie neskol'ko let pri modelirovanii nachali uchityvat'sya takie vazhnye komponenty mehanizma vzryva, kak, naprimer, perenos neitrino. astro-ph/0410099 Spektral'nye i vremennyi harakteristiki v rentgenovskom diapazone dlya zvezd molodogo rasseyannogo skopleniya IC 2391 (X-ray spectral and timing characteristics of the stars in the young open cluster IC 2391) Authors: A. Marino et al. Comments: Astronomy & Astrophysics, in press Na sputnike XMM-Newton provedeny nablyudeniya rasseyannogo skopleniya IC 2391. Proanalizirovany dannye po 99 individual'nym ob'ektam (zvezdam), iz nih 24 prinadlezhat skopleniyu. Ostanovimsya tol'ko na odnom vyvode raboty. Sravnenie novyh dannyh s rezul'tatami staryh rentgenovskih nablyudenii na sputnike ROSAT pokazalo, chto u issledovannyh zvezd net ciklicheskih variacii svetimosti na masshtabe v 7 let (promezhutok vremeni mezhdu nablyudeniyami). T.e., delayut vyvod avtory, dolgoperiodicheskie variacii, podobnye solnechnomu 11-letnemu ciklu, ne yavlyayutsya tipichnoi harakteristikoi issledovannyh molodyh zvezd. astro-ph/0410103 Hameleonnaya temnaya energiya (Chameleon Dark Energy) Authors: Ph. Brax et al. Comments: 5 pages, 2 figures. To appear in the proceedings of the "Phi in the Sky" conference, 8-10 July 2004, Porto, Portugual Kaemsya, ne uvereny, chto perevod nazvaniya adekvaten. Odnako stat'ya privlekla nashe vnimanie tem, chto vsego na pyati stranicah dostupno izlozhena koncepciya odnogo iz tipov temnoi energii, ideya kotorogo byla predlozhena sovsem nedavno. Hameleony - skalyarnye polya. Nazvanie svyazano s tem, chto massa polya zavisit ot okruzheniya (kak okraska hameleona). T.e. vklad hameleonov v temnuyu energiyu izmenyaetsya s evolyuciei vselennoi. Krome togo, dazhe v dannyi moment vremeni massa hameleona budet zaviset ot okruzhayushego veshestva (t.e., naprimer, na Zemle v laboratorii ona budet ne takoi, kak v kosmose). I imenno v etom vidyat prityagatel'nost' modeli. astro-ph/0410109 Mikroarksekundnoe nebo kosmicheskaya turbulentnost'. (The Microarcsecond Sky and Cosmic Turbulence) Authors: T. Joseph W. Lazio et al. Comments: 20 pages, 8 figures O tom, chto mezhzvezdnaya sreda turbulizovana, vsem davno i horosho izvestno, odnako do sih por nablyudeniya takoi turbulentnosti velis' tol'ko na ochen' bol'shih masshtabah. Kazhetsya v blizhaishem budushem, s poyavleniem SKA (antenny-v-kvadratnyi-kilometr) takaya vozmozhnost' poyavitsya. Ee razreshenie budet sostavlyat' millionnye doli uglovi sekundy, chto pozvolit razlichat' detali ot dolei astronomicheskih edinic do soten kilometrov(!). dissertaciya astro-ph/0410115 Anizotropiya kosmicheskogo mikrovolnovogo izlucheniya: za standartnymi parametrami (Cosmic Microwave Background Anisotropies: Beyond Standard Parameters) Authors: Roberto Trotta Comments: PhD thesis, 231 pages, 50+ low resolution figures to comply with arXiv restrictions. Higher resolution version available from http://mpej.unige.ch/~trotta/html/thesis.htm Kak obychno rekomenduem disertaciyu v kachestve podrobnogo obstoyatel'nogo obzora. astro-ph/0410117 Obzor M31 na XMM-Newton (XMM-Newton survey of M 31) Authors: W. Pietsch, M. Freyberg, F. Haberl Comments: 15 pages, 5 figures, submitted to A&A Analiz arhivnyh dannyh XMM-Newton pozvolil izuchit' 856 istochnikov so svetimostyami >4.4 1034 erg/s. Korrelirovanie novyh dannyh s bolee rannimi katalogami v razlichnyh diapazonah pozvolilo otozhdestvit' mnogie iz etih pochti devyati soten istochnikov. V chastnosti vyyavleno 21 ostatok sverhnovoi (i 23 kandidata), 18 sverhmyagkih istochnikov (eto akkreciruyushie belye karliki v tesnyh dvoinyh sistemah), 7 rentgenovskih dvoinyh (i 9 kandidatov), 27 istochnikov v sharovyh skopleniyah (i 10 kandidatov). Vyyavleno mnogo tranzientnyh isotchnikov, kotorye ne nablyudalis' ranee. Yasno takzhe, chto sredi zaregistrirovannyh istochnikov dolzhny byt' fonovye: kak lezhashie za Tumannost'yu Andromedy (v osnovnom aktivnye yadra galaktik), tak i lezhashie blizhe (v osnovnom zvezdy nashei galaktiki). gr-qc/0410007 Predely na gravitacionnoe izluchenie ot izbrannyh pul'sarov po dannym LIGO (Limits on gravitational wave emission from selected pulsars using LIGO data) Authors: The LIGO Scientific Collaboration: B. Abbott, et al, and M. Kramer and A.G. Lyne Comments: 6 pages, 2 figures Korotkaya, no vazhnaya zametka. LIGO rabotaet (vse eshe ne postoyanno i ne na planirovavsheisya chuvstvitel'nosti). Poka stavyatsya verhnie predely, no dazhe eto bol'shoi shag vpered. Dlya korotkih setov izmerenii, kotorye poka provodyatsya na interferometre, nailuchshimi ob'ektami issledovaniya okazyvayutsya izvestnye radiopul'sary, dlya kotoryh s ochen' vysokoi tochnost'yu izvestno kak polozhenie na nebe, tak i skorost' ih vrasheniya (t.e. chastota ozhidaemogo singala). Dlya 26 odinochnyh radiopul'sarov polucheny horoshie verhnie predely na potok gravitacionnyh voln. Pochti dlya vseh oni ravny neskol'kim edinicam na 10-24 (amplituda gravitacionnoi volny izmeryaetsya bezrazmernyh edinicah - otnositel'nom izmenenii rasstoyaniya mezhdu svobodnymi telami pri ee prohozhdenii). Dlya chetyreh blizhaishih pul'sarov eti predely uzhe sushestvenno ogranichivayut fantazii teoretikov otnositel'no vozmozhnoi nesferichnosti etih ob'ektov - ona ne mozhet prevyshat' ~5x10-6. astro-ph/0410132 Linzirovannye galaktiki na ochen' bol'shih krasnyh smesheniyah (Very High-Redshift Lensed Galaxies) Authors: R. Pello et al. Comments: 14 pages, 7 figures, Proceedings of IAU Symposium No. 225: The Impact of Gravitational Lensing on Cosmology, Y. Mellier and G. Meylan, Eds V nastoyashee vremya sushestvuet proekt, cel'yu kotorogo yavlyaetsya obnaruzhenie i issledovanie galaktik na z>7 s pomosh'yu gravitacionnogo linzirovaniya. V etom sluchae skopleniya galaktik ispol'zuyutsya kak svoeobraznyi teleskop: massa veshestva skopleniya fokusiruet svet, idushii ot galaktiki, lezhashei daleko za skopleniem. V stat'e predstavleny pervye poluchennye rezul'taty. Rezul'taty svodyatsya k spisku kandidatov. Vyyavlenie iskazhennyh izobrazhenii dalekih galaktik na fone skopleniya yavlyaetsya ochen' trudnoi zadachei, poetomu avtory podrobno (naskol'ko eto vozmozhno v materialah konferencii) opisyvayut metodiku otbora. Samyi interesnyi kandidat - A1835-1916, kotoryi, vozmozhno, nahoditsya na z=10. astro-ph/0410136 Ul'traglubokii proekt Chandra-Orion: nablyudeniya i spisok istochnikov (Chandra Orion Ultradeep Project: Observations and Source Lists) Authors: K. V. Getman et al. Comments: 2 pages, 11 figures, 12 tables. Accepted for publication in ApJS, special issue dedicated to Chandra Orion Ultradeep Project. A version with high quality figures can be found at http://www.astro.psu.edu/users/gkosta/COUP_Methodology.pdf Rentgenovskii kosmicheskii teleskop Chandra poluchil ochen' glubokoe izobrazhenie oblasti skopleniya Tumannosti Oriona. Pochti million sekund (838 ks) - eto bolee nedeli! Eto naibolee bogatyi odnorodnyi material po rentgenovskomu izobrazheniyu normal'nyh zvezd: katalog vklyuchaet bolee 1600 istochnikov. hep-ph/0410064 Strapel'ki v kosmicheskih luchah (Strangelets in cosmic rays) Authors: M. Rybczynski, Z. Wlodarczyk, G. Wilk Comments: Presented at XIII ISVHECRI, Pylos, 2004 Strapel'ki (Strangelets) - malen'kih kapel'ki strannoi materii. Esli verna gipoteza Vittena (1984) ob ustoichivosti strannogo veshestva , to v kosmose dolzhny letat' nebol'shie komochki, nablyudaemye, naprimer, kak neobychnye chasticy kosmicheskih luchei. Kandidaty v takie sobytiya nablyudalis' neodnokratno na samyh raznyh ustanovkah. Naprimer, interesnye sobytiya nablyudalis' vo vremya testovogo poleta AMS. Krome togo, est' t.n. price event (Z~46, A>1000), saito events (Z=14 A~350-450, exotic track events, i naibolee izvestnye centauro events (vse ssylki v stat'e, no my takzhe nastoyatel'no sovetuem posmotret' stat'yu Vittena 1984 v Phys.Rev.D30:272-285 - pochti 1000 ssylok! - i uzhe obsuzhdavshuyusya nami diskussiyu ). V stat'e rasskazyvaetsya o eshe odnom vozmozhnom (kosvennom) obnaruzhenii strapelek, na etot raz na Cosmo-LEP s detektorom DELPHI. astro-ph/0410169 Otkrytie aktivnosti spokoinoi chernoi dyry v NGC821 s pomosh'yu Chandry (Chandra discovery of activity in the quiescent nuclear black hole of NGC821) Authors: A. Baldi et al. Comments: 8 pages, 3 figures, proceedings of the "6th Italian Conference on Active Galactic Nuclei", Volterra, 25-28 May 2004 Kak i mnogie drugie ellipticheskie galaktiki NGC821 imeet central'nuyu chernuyu dyru s massoi poryadka 35 millionov mass Solnca. Odnako eta chernaya dyra ne proyavlyaet burnoi aktivnosti. Pod otsutstviem aktivnosti podrazumevaetsya otsutstvie moshnogo potoka izlucheniya (na urovne hotya by desyatyh dolei procenta ot Eddingtonoskoi svetimosti) i yavnyh vybrosov veshestva. Novye nablyudeniya na Chandre pozvolili vyyavit' interesnuyu detal': byl obnaruzhen dzhet. Tochnee, struepodobnaya struktura. Dlina ee sostavlyaet okolo odnogo kiloparseka. Po mneniyu avtorov stat'i, kakovo by ni bylo proishozhdenie etoi detali, ona odnoznachno svyazana s aktivnost'yu chernoi dyry. astro-ph/0410172 Katalog "ochen' odinokih" galaktik po dannym pervogo reliza SDSS (A Catalog of Very Isolated Galaxies from the SDSS Data Release 1) Authors: Sahar S. Allam et al. Comments: 67 pages, 14 figures, accepted for AJ Bol'shinstvo galaktik vhodit v gruppy razlichnoi chislennosti (ot chego-to podobnogo Mestnoi Gruppe galaktik, kuda vhodit Mlechnyi Put', Tumannost' Andromedy, M33 i ih sputniki, do ogromnyh skoplenii galaktik, naschityvayushih desyatki tysyach chlenov). No est' i deistvitel'no odinochnye galaktiki. Oni obladayut celym ryadom osobyh svoistv. Interes k nim ne sluchaen, naprimer, s ih pomosh'yu byli otvergnut celyi ryad teorii modificirovannoi n'yutonovskoi gravitacii (MOND). Dannyi katalog byl postroen s pomosh'yu avtomaticheskoi procedury poiska po katalogu SDSS (1-go reliza dannyh). Na 2099 kvadratnyh gradusah neba, obrabotannogo SDSS, byli naideny 2980 odinochnyh galaktik. obzor astro-ph/0410173 Otslezhivanie kosmologicheskoi evolyucii po skopleniyam galaktik (Tracing cosmic evolution with clusters of galaxies) Authors: G. Mark Voit Comments: 54 pages, 15 figures, Rev. Mod. Phys. (in press) Bol'shoi horoshii obzor po skopleniyam galaktik. V osnovnom avtor govorit o krupnomasshtabnoi strukture i svyazannyh s neyu aspektah evolyucii Vselennoi, a takzhe ob obrazovanii pervyh zvezd i galaktik. Otmetim takzhe vtoroi svezhii obzor: svyazannyi so skopleniyami galaktik Magnetic Field in Clusters of Galaxies. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0410018 15.2 teraflopnoe modelirovanie geodinamo na "Simulyatore Zemli" (A 15.2 TFlops Simulation of Geodynamo on the Earth Simulator) Authors: Akira Kageyama et al. Comments: Contribution to Technical Program of SC2004 conference Napomnim, chto "Earth Simulator" - po suti samyi moshnyi komp'yuter na Zemle. Prednaznachen on, kak yasno iz nazvaniya, dlya modelirovaniya razlichnyh geofizicheskih processov. V dannoi rabote postroena model' geodinamo. Modelirovalas' teplovaya konvekciya v zhidkoi provodyashei obolochke. V stat'e est' horoshee korotkoe vvedenie, i voobshe, napisano vse ochen' dostupno. Rekomenduem. physics/0410032 Izuchenie MGD yavlenii na Tokamakah (Study on MHD activity in Tokamaks) Authors: Fatemeh Hajakbari, Alireza Hojabri Comments: 12th International Congress on Plasma Physics, 25-29 October 2004, Nice (France) Ochen' korotkaya zametka iranskih (!) fizikov, posvyashennaya probleme MGD neustoichivostei v Tokamakah. Vernut'sya k nachalu stranicy

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