The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N68) Zvezdy AstroRuneta-2003 Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 04.02.2004. Rentgenogramma serdca Galaktiki Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0402169 Sushestvovanie starogo kvazara na z=3.91 astro-ph/0402212 Shirokougol'nyi korrektor dlya pervichnogo fokusa teleskora Richi-Kret'ena astro-ph/0402255 FALCON: koncepciya adaptivnoi opticheskoi korrekcii v protyazhennyh polyah astro-ph/0402278 Fundamental'nye aspekty rasshireniya Vselennoi i kosmicheskie gorizonty Otdel'nye stat'i Odinochnye neitronnye zvezdy Ohlazhdenie neitronnyh zvezd Spektr razmerov ob'ektov poyasa Koipera, voznikayushih pri droblenii bol'shih, no neprochnyh tel Gazovye potoki v tesnyh dvoinyh sistemah Sushestvovanie starogo kvazara na z=3.91 Struktura krupnomasshtabnogo magnitnogo polya nashe Galaktiki na osnove mer vrasheniya izlucheniya pul'sarov Istochniki myagkih povtoryayushihsya gamma-vspleskov i anomal'nye rentgenovskie pul'sary: naveki vmeste Spektral'naya klassifikaciya i effektivnye temperatury L i T-karlikov na osnove spektrov v blizkom IK Obrazovanie neitronnyh zvezd i ih nachal'nye svoistva Obzor inflyacii Effektivnaya temperatura goryachih zvezd: Rannie O-zvezdy Shirokougol'nyi korrektor dlya pervichnogo fokusa teleskora Richi-Kret'ena Dostizheniya metoda AMR v chislennoi astrofizike i kosmologii 1E1207.4-5209 unikal'nyi ob'ekt Geminga: rasskaz o dvuh hvostah i bolee togo Kosmologicheskii teleskop Atakama FALCON: koncepciya adaptivnoi opticheskoi korrekcii v protyazhennyh Kosmologicheskih polyah Fundamental'nye aspekty rasshireniya Vselennoi i kosmicheskie gorizonty Dvizhenie pul'sarov v Galaktike Iz razdela physics Predely na vremennye variacii postoyannoi tonkoi struktury, mass kvarkov i i sil'nogo vzaimodeistviya po dannym o spektrah kvazarov i po eksperimentam s atomnymi chasami 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" Sozdavaemyi katalog on-lainovoi nauchnoi literatury

Obzory preprintov astro-ph Vypusk N69 astro-ph za 08 - 15 fevralya 2004 goda: izbrannye stat'i Referaty otdel'nyh statei obzor astro-ph/0402136 Odinochnye neitronnye zvezdy (Isolated Neutron Stars) Authors: V. M. Kaspi, M. S. E. Roberts, A. K. Harding Comments: 66 pages, 17 figures. To appear in "Compact Stellar X-ray Sources", eds. W.H.G. Lewin and M. van der Klis. Comments welcome but needed ASAP. High resolution images and Tables 8.1 and 8.2 available at http://www.physics.mcgill.ca/~vkaspi/isolated_neutron_stars Odnovremenno poyavilis' dva obzora po neitronnym zvezdam: etot i obzor Yakovleva i Petika po ohlazhdeniyu. V etom obzore daetsya svod dannyh po rentgenovskomu izlucheniyu ot odinochnyh neitronnyh zvezd. Ono mozhet byt' svyazano ili s vrasheniem (kak u pul'sarov), ili s vysokoi temperaturoi. Sootvetstvenno opisyvayutsya kak dannye nablyudenii, tak i teorii. obzor astro-ph/0402143 Ohlazhdenie neitronnyh zvezd (Neutron Star Cooling) Authors: D.G. Yakovlev, C.J. Pethick Comments: 41 pages, 12 figures, to appear in Ann. Rev. Astron. Astrophys., 2004 Obzor prekrasno dopolnyaet vysheopisannyi material Kaspi i dr. Zdes' detal'no opisyvaetsya ohlazhdenie neitronnyh zvezd. Dannye o temperature takih ob'ektov v osnovnom poluchayutsya kak raz iz rentgenovskih nablyudenii. Tak chto obzory otlichno stykuyutsya drug s drugom. astro-ph/0402138 Spektr razmerov ob'ektov poyasa Koipera, voznikayushih pri droblenii bol'shih, no neprochnyh tel (Shaping the Kuiper belt size spectrum by shattering large but strengthless bodies) Authors: Margaret Pan, Re'em Sari (Caltech) Comments: 11 pages, 2 figures; submitted to Icarus Samye krupnye tela transneptunovogo poyasa Koipera (kotorye my tol'ko i mozhem segodnya nablyudat') imeyut stepennoe raspredelenie po razmeram. Odnako poslednie nablyudeniya ukazyvayut, chto etot spektr imeet izlom i stanovitsya kruche dlya ob'ektov s razmerami men'she primerno 70 km. Dlya ob'yasneniya takogo izloma avtory predlagayut model' posledovatel'nogo drobleniya pri stolknoveniyah, kotoruyu luchshe vsego illyustriruet privedennyi nizhe risunok. V rezul'tate chego v spektre razmerov poluchayutsya dva stepennyh uchastka, razdelennyh izlomom, polozhenie kotorogo menyaetsya so vremenem. astro-ph/0402146 Gazovye potoki v tesnyh dvoinyh sistemah (Gas flow in close binary star systems) Authors: K.Oka, T.Matsuda, I.Hachisu, H.Boffin Comments: 8 pages, 5 figures astro-ph/0402217 Chislennoe modelirovanie poverhnostnyh potokov na zvezdu-kompan'on v tesnyh dvoinyh sistemah. Konstruirovanie doplerovskih kart v prilozhenii k galakticheskim sverhmyagkim rentgenovskim istochnikam (Numerical Simulation of the Surface Flow on the Companion Star in a Close Binary System II. Construction of Doppler maps and application to Galactic supersoft X-ray sources) Authors: K.Oka, T.Matsuda, I.Hachisu, H.Boffin Comments: 8 pages, 9 figures, accepted in A&A Dve raboty odnoi i toi zhe chetverki avtorov, posvyashennye trehmernomu gidrodinamicheskomu modelirovaniyu processov peretekaniya veshestva cherez v sistemah, gde odin iz komponentov zapolnyaet polost' Rosha. Pervaya rabota ochen' szhaty obzor rezul'tatov etoi, v osnovnom yaponskoi: gruppy (hotya podobnym modelirovaniem zanimayutsya ne tol'ko oni). Vtoraya bolee podrobnaya i tehnicheskaya. astro-ph/0402169 Sushestvovanie starogo kvazara na z=3.91 i ego prilozhenie k kosmologii (The Existence of an Old Quasar at z=3.91 and its Implications for Lambda(t) Deflationary Cosmologies) Authors: J. V. Cunha (UFRN) R. C. Santos (UFRN) Comments: 8 pages, 2 figures, submitted to IJMPD Opredelit' vozrast kvazara pryamym metodom dostatochno zatrudnitel'no. Poetomu ih delyat na molodye i starye po nablyudaemym liniyam himicheskih elementov: esli v spektre kvazara nablyudaetsya Fe K skachok, a otnoshenie chisla atomov zheleza i kisloroda Fe/O v 2-5 raz prevyshaet Solnechnoe, to kvazar schitaetsya "starym", poskol'ku okruzhayushee ego veshestvo zametno obogasheno tyazhelymi elementami, voznikayushimi v hode evolyucii zvezd. Molodye kvazary i kvazary s neizvestnymi vozrastami (slishkom slabye, chtoby proizvesti neobhodimye spektral'nye nablyudeniya) izvestny dazhe na z>6. A vot samyi dalekii staryi kvazar - APM 08279+5255 byl nedavno obnaruzhen na z=3.91. Iz etogo fakta avtory dayut ogranicheniya na kosmologicheskie parametry Vselennoi (osobenno sil'nye dlya ekzoticheskoi modeli s peremennym vo vremeni Lambda-chlenom), hotya sam fakt otkrytiya takogo kvazara, veroyatno, bolee vazhen i interesen. astro-ph/0402170 Struktura krupnomasshtabnogo magnitnogo polya nashe Galaktiki na osnove mer vrasheniya izlucheniya pul'sarov (The Large-Scale Magnetic Field Structure of Our Galaxy: Efficiently Deduced from Pulsar Rotation Measures) Authors: J.L. Han (NAOC) Comments: 10 pages, 4 figures Segodnya izvestno bolee 1000 radiopul'sarov, kotorye pokryvayut vse nebo (hotya i ne odnorodno), iz izluchenie obladaem vysokoi lineinoi polyarizaciei i dlya mnogih ob'ektov izvestna mera vrasheniya - zavisyashee ot chastoty izmenenie pozicionnogo ugla ploskosti polyarizacii izlucheniya, vyzvannoe ego rasprostraneniem v zamagnichennoi mezhzvezdnoi plazme. Pul'sarov s izvestnoi meroi vrasheniya uzhe tak mnogo, chto na ih osnove udaetsya vosstanovit' krupnomasshtabnuyu strukturu magnitnogo polya vblizi ploskosti Galaktiki. Poluchennaya "karta" pokazana na risunke. miniobzor astro-ph/0402175 Istochniki myagkih povtoryayushihsya gamma-vspleskov i anomal'nye rentgenovskie pul'sary: naveki vmeste (Soft Gamma Repeaters and Anomalous X-ray Pulsars: Together Forever) Authors: V. M. Kaspi Comments: 8 pages, 2 figures. To appear in "Young Neutron Stars and Their Environments" (IAU Symposium 218, ASP Conference Proceedings), eds F. Camilo and B. M. Gaensler Odnovremenno poyavilis' srazu dva obzora po anomal'nym rentgenovskim pul'saram (ARP) i istochnikam myagkih povtoryayushihsya gamma-vspleskov (MPG). Vtoraya stat'ya (Anomalous) X-ray Pulsars posvyashena, kak yasno iz nazvaniya, v osnovnom ARP. V etoi zhe daetsya svodka po oboim tipam ob'ektov. Obsuzhdayutsya vzaimosvyazi mezhdu ARP i MPG (cherez vspyshki i drugie proyavleniya). Osnovnoi vyvod Viki Kaspi takov: magnetarnaya gipoteza yavlyaetsya samoi sil'noi na segodnyashnii den', odnako, somneniya ostayutsya, a potomu nuzhny bolee detal'nye i pryamye nablyudeniya. obzor astro-ph/0402186 Spektral'naya klassifikaciya i effektivnye temperatury L i T-karlikov na osnove spektrov v blizkom IK (Spectral Classification and Effective Temperatures of L and T Dwarfs Based of Near-Infrared Spectra) Authors: T.Nakajima, T.Tsuji and K.Yanagisawa Comments: 31 pages, 6 figures. Dlya samyh malen'kih zvezd, kotorye odnovremenno yavlyayutsya samymi tusklymi i holodnymi, i tem bolee dlya korichnevyh karlikov, v kotorye termoyadernye reakcii voobshe ne idut, ne hvataet obychnoi spektral'noi klassifikacii, zakanchivayusheisya zvezdami klassa M. V nee snachala byl dobavlen novyi spektral'nyi klass L, a zatem klass T. Spektral'naya klassifikaciya v etoi oblasti osnovana na analize nablyudenii v blizhnem infrakrasnom diapazone. V dannom obzore po dannym infrakrasnogo sputnika Subaru opredelyayutsya kriterii klassifikacii zvezd na podklassy: ot L0 do L9 i ot T0 do T8. miniobzor astro-ph/0402200 Obrazovanie neitronnyh zvezd i ih nachal'nye svoistva (Neutron Star Formation and Birth Properties) Authors: Hans-Thomas Janka Comments: 10 pages, 4 figures, high-quality available upon request; to appear in "Young Neutron Stars and Their Environments" (IAU Symposium 218, ASP Conference Proceedings), eds. F. Camilo and B.M. Gaensler Horoshii ochen' dostupnyi obzor, posvyashennyi obrazovaniyu neitronnyh zvezd. Obsuzhdayutsya naibolee standartnye vzglyady na nachal'nye svoistva etih ob'ektov: massy, periody, skorosti, magnitnye polya i t.p. obzor hep-th/0402051 Obzor inflyacii (Prospects of Inflation) Authors: Andrei Linde Comments: 23 pages, extended version of the talk at the Nobel Symposium "Cosmology and String Theory," August 2003 Razumeetsya, iz goda v god Andrei Linde delaet obzornye doklady po inflyacii, i, sootvetstvenno, poyavlyayutsya obzornye stat'i. Na nash vzglyad, ego obzory - samye udachnye. Delo dazhe ne tol'ko i ne stol'ko v tom, chto eto "inflyaciya iz pervyh ruk". Prosto emu udalos' vyrabotat' nekotoryi stil', kotoryi pozvolyaet otnositel'no dostupno rasskazat' o slozhnoi idee. Te, kto chital predydushie obzoru, mogut obratit' vnimanie tol'ko na "strunnuyu" chast' dannoi stat'i. Vsem prochim sovetuem vnimatel'no prochest' stat'yu celikom (vozmozhno ne odin raz). astro-ph/0402207 Effektivnaya temperatura goryachih zvezd: Rannie O-zvezdy (The Effective Temperatures of Hot Stars II. The Early-O Types) Authors: Miriam Garcia and Luciana Bianchi Comments: 38 pages, 9 figures, 4 tables, accepted for ApJ Po opredeleniyu, effektivnaya temperatura, eto temperatura takogo absolyutno chernogo tela, kotoroe pri teh zhe razmerah i forme daet izluchenie takoi zhe moshnosti, chto i dannoe real'noe telo. U samyh goryachih zvezd, otnosyashihsya k spektral'nym klassam O3-O4, maksimum izlucheniya lezhit uzhe za predelami opticheskogo diapazona. Dlya opredeleniya effektivnoi temperatury takih zvezd prihoditsya privlekat' ih spektral'nye nablyudeniya v ul'trafioletovom i dalekom ul'trafioletovom diapazonah. Issledovaniya pokazali, chto effektivnye temperatury zvezd spektral'nyh klassov O3-O4 lezhat v intervale 39 000-41 000 K dlya karlikov i okolo 37 500 K dlya sverhgigatnov. Eti velichiny primerno na 20% men'she ispol'zovavshihsya ranee. astro-ph/0402212 Shirokougol'nyi korrektor dlya pervichnogo fokusa teleskora Richi-Kret'ena (A Wide-Field Corrector at the Prime Focus of a Ritchey-Chretien Telescope) Authors: V.Yu.Terebizh Comments: 16 pages in PDF, including 6 figures and 5 tables Redkaya stat'ya, posvyashennaya astronomicheskim intsrumentam. Populyarnaya v poslednie gody shema Richi-Kret'ena, sostoyashaya iz dvuh giperbolicheskih zerkal, pozvolyaet teleskopu imet' dostatochno bol'shoe pole zreniya (do 3o). No eto pole ne ploskoe (v pervichnom fokuse)! Mozhno li eto ispravit' i kak rasschitat' sootvetstvuyushuyu korrekcionnuyu plastinu, opisano v dannoi stat'e. obzor astro-ph/0402230 Dostizheniya metoda AMR v chislennoi astrofizike i kosmologii (The Impact of AMR in Numerical Astrophysics and Cosmology) Authors: Michael L. Norman Comments: 21 pages, 0 figures. AMR (Adaptive Mesh Refinement) oznachaet "metod adaptivnyh setok" odin iz samyh prodvinutyh metodov chislennogo gidrodinamicheskogo i magnitogidrodinamicheskogo modelirovaniya, kogda trebuetsya smodelirovat' processy v dostatochno bol'shom ob'eme prostranstva i pri etom prosledit' za melkimi detalyami, voznikayushimi v nekotoryh ego mestah. A primenyayutsya eti metody dlya modelirovaniya Solnca, mezhzvezdnoi sredy, vspyshek Sverhnovyh, processov nukleosinteza, zvezdoobrazovaniya, dzhetov, obrazovaniya i evolyucii galaktik i krupnomasshtabnoi struktury Vselennoi. I tak dalee ... (Pri etom ni odnogo risunka.) astro-ph/0402231 1E1207.4-5209 unikal'nyi ob'ekt (1E1207.4-5209 - a Unique Object) Authors: G.F. Bignami et al. Comments: 6 pages, 6 figures Unikal'naya odinochnaya neitronnaya zvezda v rentgenovskom spektre kotoroi nablyudayutsya shirokie i glubokie linii. My o nei uzhe pisali god nazad (sm. astro-ph/0301161). Za god intensivnyh nablyudenii poluchen ryad interesnyh rezul'tatov, kotorye korotko izlozheny v etoi nebol'shoi zametke. astro-ph/0402232 Geminga: rasskaz o dvuh hvostah i bolee togo (Geminga: a tale of two tails, and much more) Authors: P.A. Caraveo, et al. Comments: 6 pages, 4 figures V zametke kratko izlozhen rezul'taty glubokogo (bolee sutok) nablyudeniya pul'sara Geminga s borta observatorii XMM-N'yuton. Na izobrazhenii yasno vidny dva parallel'nyh napravleniyu dvizheniya pul'sara "hvosta", vyzvannyh ego vzaimodeistviem s mezhzvezdnoi sredoi. Eto samaya interesnaya kartinka (sm. nizhe), ostal'nye "vkusnosti" otnosyatsya k spektru etogo pul'sara. astro-ph/0402234 Kosmologicheskii teleskop Atakama (The Atacama Cosmology Telescope) Authors: Arthur Kosowsky (Rutgers) Comments: 7 pages, 1 figure. Eshe odin nazemnyi eksperiment po nablyudeniyu reliktovogo fona. On dolzhen pronablyudat' okolo 200 kvadratnyh gradusov neba v treh spektral'nyh diapazonah S razresheniem poryadka uglovoi minuty i chuvstvitel'nost'yu poryadka mikrokel'vina. Ochen' neplohoi eksperiment, detali v stat'e. Pol'zuyas' sluchaem, hochetsya otmetit' sovsem svezhuyu stat'yu M.V. Sazhina v UFN, posvyashennuyu reliktovomu izlucheniyu. Eto ochen' kratkii, yasnyi i ischerpyvayushii obzor. astro-ph/0402255 FALCON: koncepciya adaptivnoi opticheskoi korrekcii v protyazhennyh Kosmologicheskih polyah (FALCON: a concept to extend adaptive optics corrections to cosmological fields) Authors: Francois Hammer et al. Comments: 10 pages, 7 figures FALCON novaya koncepciya mnogozrachkovogo spektrometra, prednaznachennogo dlya raboty na teleskopah klassa VLT. Spektry budut snimat'sya v dostatochno bol'shom chisle tochek shirokogo polya nablyudenii. Osnovnaya novizna koncepcii v tom, chto dlya kazhdogo takogo polya budet provodit'sya adaptivnaya opticheskaya korrekciya po real'noi raspolozhennoi ryadom zvezde. V stat'e vy naidete eshe mnogo interesnyh detalei. dissertaciya astro-ph/0402278 Fundamental'nye aspekty rasshireniya Vselennoi i kosmicheskie gorizonty (Fundamental Aspects of the Expansion of the Universe and Cosmic Horizons) Authors: Tamara M. Davis Comments: Ph.D. thesis, 154 pages, 45 figures My uzhe ochen' podrobno pisali o nekotoryh tipichnyh zabluzhdeniyah, kasayushihsya kosmicheskih gorizontov. Pisali kak raz na osnove rabot Tamary Devis. I vot poyavilas' ee dissertaciya, celikom posvyashennaya etim voprosam. Tam detal'no razobrano mnogo vazhnyh primerov. Vsem vsyacheski ee rekomenduem. astro-ph/0402282 Dvizhenie pul'sarov v Galaktike (Pulsar motions in our Galaxy) Authors: X. H. Sun, J. L. Han Comments: 11 pages, 16 figures, accepted by MNRAS S pomosh'yu chislennogo modelirovanie otslezhivayutsya orbity radiopul'sarov v Galaktike v techenie pervyh 2 milliardov let ih zhizni. Takie raboty uzhe neodnokratno provodilis' (v tom chisle i nami), odnako poyavlyayutsya novye dannye, utochnyayutsya razlichnye parametry, poetomu povtorenie takih issledovanii neobhodimo. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). hep-ph/0402098 Predely na vremennye variacii postoyannoi tonkoi struktury, mass kvarkov i i sil'nogo vzaimodeistviya po dannym o spektrah kvazarov i po eksperimentam s atomnymi chasami (Limits on the temporal variation of the fine structure constant, quark masses and strong interaction from quasar absorption spectra and atomic clock experiments) Authors: V. V. Flambaum et al. Comments: 8 pages, 1 figure, uses revtex4 Obsuzhdayutsya sovremennye nablyudatel'nye i eksperimental'nye predely na variacii razlichnyh fundamental'nyh konstant so vremenem. Sm. takzhe stat'yu Limits on the time variation of the electromagnetic fine-structure constant in the low energy limit from absorption lines in the spectra of distant quasars, v kotoroi dayutsya novye astronomicheskie predely na izmenenie postoyannoi tonkoi struktury. Vernut'sya k nachalu stranicy

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