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The R.A.P.Project "Prosto o slozhnom" "Astro-ph za 2006 g." Nemnogo statistiki Predydushii vypusk (N149) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 21.09.2006. Vspyshka vnegalakticheskogo magnitara ili korotkii gamma-vsplesk? 23.08.2006. Chernaya koshka obnaruzhena 13.04.2006. On bol'she Plutona! 07.04.2006. Disk vokrug anomal'nogo pul'sara 29.03.2006. Samyi dalekii gamma-vsplesk: mesto rozhdeniya 22.03.2006. Vega krutitsya volchkom 21.03.2006. Tri goda raboty WMAP 03.03.2006. S chem mozhno pereputat' sverhnovuyu? Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0702355 Skol'ko sverhnovyh na bol'shih krasnyh smesheniyah my propuskaem? astro-ph/0702538 Fizicheskie svoistva ob'ektov poyasa Koipera i Kentavrov: ogranicheniya po dannym kosmicheskogo teleskopa imeni Spitcera astro-ph/0702539 Modelirovanie magnitnoi sverhnovyh i gipernovyh v kontekste bystrogo vrasheniya astro-ph/0702647 Otkrytie samoi shirokoi ochen' malomassivnoi dvoinoi Otdel'nye stat'i Skol'ko sverhnovyh na bol'shih krasnyh smesheniyah my propuskaem? Modelirovanie kikov pri sliyaniii ne precessiruyushih chernyh dyr Vliyanie magnitnogo polya na formirovanie odinochnyh i dvoinyh zvezd Teplovoe izluchenie odinochnyh neitronnyh zvezd: teoreticheskie i nablyudatel'nye aspekty O sostoyanii del s zavalom v spektre kosmicheskih luchei sverhvysokih energii Fizicheskie svoistva ob'ektov poyasa Koipera i Kentavrov: ogranicheniya po dannym kosmicheskogo teleskopa imeni Spitcera Modelirovanie magnitnoi sverhnovyh i gipernovyh v kontekste bystrogo vrasheniya Mestnyi puzyr' i mezhzvezdnoe veshestvo okolo Solnca Otkrytie samoi shirokoi ochen' malomassivnoi dvoinoi Lyubopytnye svoistva raskruchennyh pul'sarov i vozmozhnost' vysokotochnogo taiminga Maksimal'naya gravitacionnaya otdacha Mogut li planety perezhit' evolyucioniruyushie zvezdy? Iz razdela physics Tri stat'i Nordstrema Ocenka urovnya kooperacii v Vikipedii Polnyi Arhiv predydushih vypuskov. Arhiv statei, voshedshih v vypuski s 01 iyulya 2002 g. po 31 marta 2003 g. Arhiv na 14.04.2006 odnim failom (36.9 Mb; *.tar.gz) gzip homepage 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 Diskussii po stat'yam Arhiva PhysComments CosmoCoffee Postav'te u sebya nashu knopku! Proekt razmeshen na saitah: Smotri takzhe diskussii i blogi: Vy mozhet takzhe razmestit' na svoem saite nashu lentu obzorov Novostnye lenty Novosti kosmonavtiki Novosti Nauchpopa Novosti ot UFN Informnauka Researcher@ Elementy.Ru Grani.Ru Perst Podpiska na rassylku obzorov na Subscribe.Ru Druzhestvennye rassylki: "Astronomiya segodnya" "Okno vo Vselennuyu" Spisok astrorassylok

Obzory preprintov astro-ph Vypusk N150 astro-ph za 15 - 28 fevralya 2007 goda: izbrannye stat'i Referaty otdel'nyh statei astro-ph/0702355 Skol'ko sverhnovyh na bol'shih krasnyh smesheniyah my propuskaem? (How many supernovae are we missing at high redshift?) Authors: F. Mannucci, M. Della Valle, N. Panagia Comments: 9 pages, MNRAS, in press Iz-za togo, chto pyl' i gaz meshayut nablyudeniyam v opticheskom diapazone, dostatochno bol'shoe kolichestvo sverhnovyh okazyvaetsya skrytimi ot nas. Dazhe v nashei Galaktike my mozhem ne zametit' takoi moshnyi vzryv! Chto uzh govorit' o dalekih.... Avtory pokazyvayut, chto v blizkih galaktikah my mozhem propuskat' primerno 5-10 procentov sverhnovyh, svyazannyh s kollapsom yader massivnyh zvezd. S rostom krasnogo smesheniya eta dolya uvelichivaetsya, dohodya do dvuh tretei na z>2. astro-ph/0702390 Modelirovanie kikov pri sliyaniii ne precessiruyushih chernyh dyr (Modeling kicks from the merger of non-precessing black-hole binaries) Authors: John G. Baker et al. Comments: 5 pages, 3 figures Goda tri nazad vozrodilsya interes k t.n. "gravitacionno-volnovoi rakete". Ideya tut v tom, chto pri sliyanii chernyh dyr obrazuyushayasya dyra poluchaet impul's (ili, kak govoryat, "kik" - udar, tolchok, kick). Svyazano eto s nesimmetrichnym izlucheniem gravitacionnyh voln. V samom nachale svoei stat'i Beiker i dr. otmechayut uspehi v chislennom modelirovanii sliyanii chernyh dyr. Tem ne menee, dlya "shirokoi obshestvennosti" bylo by chrezvychaino udobno, esli by rezul'taty raschetov byli horosho zaapproksimirovanny kakoi-nibud' formuloi (pust' i slozhnoi), ibo inache nezavisimym gruppam (u kotoryh net svoih kodov) nevozmozhno vklyuchat' ucheta effekta gravitacionno-volnovoi rakety v svoi modeli. A effekt vazhen dlya mnogih oblastei astrofiziki. V pervuyu ochered' on sushestvenen pri raschetah rosta galaktik v modeli ierarhicheskogo skuchivaniya. V svoei stat'e Beiker i dr. pytayutsya dat' takuyu formulu, osnovyvayas' na svoih raschetah, a takzhe na rezul'tatah opublikovannyh raschetov drugih grupp. Formula dana, i po slovam avorov ona approksimiruet rezul'taty s tochnost' luchshe 10 procentov. astro-ph/0702410 Vliyanie magnitnogo polya na formirovanie odinochnyh i dvoinyh zvezd (The impact of magnetic fields on single and binary star formation) Authors: Daniel J. Price, Matthew R. Bate Comments: 15 pages, 12 figures, accepted for publication in MNRAS. Avtory chislenno modelirovali process zvezdoobrazovaniya s uchetom vliyaniya magnitnyh polei. Rezul'taty raschetov neskol'ko otlichayutsya ot osnovnoi massy analogichnyh rabot, prodelannyh ranee. Rol' magnitnyh polei, po raschetam avtorov, okazyvaetsya ochen' velika. Magnitnoe davlenie sushestvenno prepyatstvuet fragmentacii molekulyarnogo oblaka. V chastnosti, sil'nye polya mogut prepyatstvovat' formirovaniyu tesnyh dvoinyh zvezdnyh sistem, a takzhe planetnyh sistem. Zato mogut obrazovyvat'sya shirokie dvoinye zvezdy (te. sistemy s bol'shim or'ital'nym periodom). obzor astro-ph/0702426 Teplovoe izluchenie odinochnyh neitronnyh zvezd: teoreticheskie i nablyudatel'nye aspekty (Thermal emission from isolated neutron stars: theoretical and observational aspects) Authors: Vyacheslav E. Zavlin Comments: Review lecture given at the 363-rd Heraeus Seminar on Neutron Stars and Pulsars held on May 14-19, 2006 in Bad Honnef (Germany); to be published as a Springer Lecture Notes; 37 pages, 14 figures; Podrobnyi obzor po ochen' aktual'noi seichas teme. Delo v tom, chto teplovoe izluchenie neitronnyh zvezd opredelyaetsya processami v ih nedrah. T.o., nablyudeniya etogo izlucheniya pozvolyayut nam kosvenno zaglyanut' v nedra neitronnyh zvezd i popytat'sya chto-to uznat' o fizicheskih processah, prohodyashih pri ekstremal'nyh usloviyah. Krome togo, neitronnye zvezdy obladayut ochen' interesnymi atmosferami. S nimi eshe mnogoe neponyatno, a na spektry teplovogo izlucheniya oni vliyayut kriticheskim obrazom. miniobzor astro-ph/0702488 O sostoyanii del s provalom v spektre kosmicheskih luchei sverhvysokih energii (On the status of the dip in UHECR spectrum) Authors: V.Berezinsky, A.Gazizov, S.Grigorieva Comments: 4 pages, 5 figures Korotkii obzor, v kotorom opisano, chto na segodnyashnii den' dayut nablyudeniya v voprose o nalichii GZK-zavala v spektre kosmicheskih luchei, a takzhe nalichie "provala" (dip) [v kachestve anonsa hochu otmetit', chto na 26 aprelya zaplanirovana lekciya pro kosmicheskie luchi v Politehnicheskom muzee, a v pyatom nomere "Vokrug Sveta" dolzhna vyiti stat'ya, posvyashennaya etoi tematike]. "Proval" dolzhen nahodit'sya na energiyah poryadka 1019 eV. On, kak i GZK-zaval, svyazan s vzaimodeistviem chastic kosmicheskih luchei s fotonami reliktovogo izlucheniya (hotya, est' teorii, v kotoryh analogichnaya detal' v spektre voznikaet iz-za perehoda ot galakticheskih k vnegalakticheskim istochnikam). Na segodnyashnii den' osnovnoi nabor dannyh sostavlen po rezul'tatam raboty detektorov AGASA (Yaponiya) i HiRes (SShA), kotorye zakonchili svoyu rabotu, a takzhe po rezul'tatam observatorii imeni Ozhe (Auger), kotoaya tol'ko nachala svoyu rabotu (tochnee, polnyi montazh budet zakonchen v blizhaishie mesyacy, no bol'shaya chast' detektorov uzhe rabotaet). Krome togo, est' dannye s yakutskoi ustanovki (Rossiya). Rezul'taty so vseh ustanovok privodyatsya v stat'e. Vse dannye ukazyvayut na to, chto "proval" est', hotya v rezul'tatah nablyudenii na raznyh ustanovkah on po-raznomu vyrazhen. astro-ph/0702538 Fizicheskie svoistva ob'ektov poyasa Koipera i Kentavrov: ogranicheniya po dannym kosmicheskogo teleskopa imeni Spitcera (Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope) Authors: John Stansberry, et al. Comments: 19 pages, 3 figures, 5 tables Avtory privodyat dannye po rezul'tatam nablyudenii 47 kentavrov i ob'ektov poyasa Koipera na infrakrasnom kosmicheskom teleskope imeni Spitcera. Osnovnye rezul'taty takovy: 1. chem men'shii perigelii imeet ob'ekt, tem men'she ego al'bedo (t.e., ob'ekt temnee), 2. al'bedo ob'ektov poyasa Koipera (no ne kentavrov!) korreliruyut s ih razmerom (chem bol'she ob'ekt, tem bol'she al'bedo). Vozmozhno, chto est' i eshe nekotorye interesnye korrelyacii, no tut poka mnogo neyasnogo. astro-ph/0702539 Modelirovanie magnitnoi sverhnovyh i gipernovyh v kontekste bystrogo vrasheniya (Simulations of Magnetically-Driven Supernova and Hypernova Explosions in the Context of Rapid Rotation) Authors: Adam Burrows, Luc Dessart, Eli Livne, Christian D. Ott, Jeremiah Murphy Comments: 26 pages, including 16 color figures; submitted to the Astrophysical Journal February 20, 2007; Ideya mehanizma vzryva sverhnovoi, predlozhennogo primerno v 1970 g. G.S. Bisnovatym-Koganom, postepenno ovladevaet massami. Sut' sostoit v tom, chto bystroe vrashenie i voznikayushee magnitnoe pole igrayut klyuchevuyu rol' vo vzryve. Avtory predstavlyayut rezul'taty svoego dvumernogo modelirovaniya, kotoroe pokazyvaet, chto pri dostatochno bystrom vrashenii zvezdy-praroditelya voznikaet moshnyi dzhet, i energetiki hvataet dazhe dlya giperonovoi. T.o., tak mozhno ob'yasnyat' gamma-vspleski. miniobzor astro-ph/0702596 Mestnyi puzyr' i mezhzvezdnoe veshestvo okolo Solnca (The Local Bubble and Interstellar Material Near the Sun) Authors: P. C. Frisch Comments: 12 pages, Proceedings of Symposium on the Composition of Matter, honoring Johannes Geiss on the occasion of his 80th birthday Dano opisanie mezhzvezdnoi sredy i proishodyashih v nei processov dlya rastoyanii poryadka 100-200 parsek ot nas. V etoi oblasti nedavnie vspyshki sverhnovyh i moshnyi veter massivnyh zvezd priveli k poyavleniyu interesnyh struktur, kotorye my mozhem izuchat' v melkih detalyah, blagodarya blizkomu rasstoyaniyu. Samaya vazhnaya dlya nas struktura - eto Local Bubble t.e. Mestnyi puzyr'. Na moi vzglyad, istoriya proishozhdeniya Mestnogo Puzyrya i Poyasa Gulda dany slishkom uzh bezappellyacionno. Tem ne menee, obzor zasluzhivaet vnimaniya. astro-ph/0702647 Otkrytie samoi shirokoi ochen' malomassivnoi dvoinoi (Discovery of the Widest Very Low Mass Binary) Authors: Etienne Artigau et al. Comments: accepted ApJL, 4 pages Ochen' malomassivnye sistemy - eto zvezdnye pary, v kotoryh massa bolee massivnogo komponenta ne prevoshodit 0.1 solnechnoi. Obnaruzhena dvoinaya etogo tipa, v kotoroi rasstoyanie mezhdu komponentami sostavlyaet bolee 5000 a.e. Eto ne prosto rekord. Orbita novoi dvoinoi v dva s lishnim raza shire, chem u perdydushei rekordsmenki. Paru sostavlyayut zvezdy klassov M6.5V i M8V. Rasstoyanie do sistemy - 62 parseka. Otkrytie takoi zvezdnoi pary stavit nekotorye voprosy pered teoriyami obrazovaniya i evolyucii dvoinyh. obzor astro-ph/0702698 Lyubopytnye svoistva raskruchennyh pul'sarov i vozmozhnost' vysokotochnogo taiminga (Curious properties of the recycled pulsars and the potential of high precision timing) Authors: Matthew Bailes Comments: 15 pages, 8 figures, To appear in proceedings of "A life with stars", a conference held in honour of Ed van den Heuvel, Amsterdam, Aug 2005), New Ast. Rev. accepted Feb 2007 Daetsya obzor svoistv raskruchennyh pul'sarov. Vrashenie etih ob'ektov bylo uskoreno za schet akkrecii v tesnoi dvoinoi sisteme. Avtor privodit neskol'ko poleznyh grafikov, a takzhe obsuzhdaet svyaz' nekotoryh parametrov raskruchennyh pul'sarov s massoi ih kompan'onov. gr-qc/0702133 Maksimal'naya gravitacionnaya otdacha (Maximum gravitational recoil) Authors: Manuela Campanelli, Carlos O. Lousto, Yosef Zlochower, David Merritt Comments: 4 pages, 4 figs, revtex4 Napomnyu, chto pri sliyanii dvuh chernyh dyr obrazuyushayasya dyra poluchaet dopolnitel'nuyu skorost' iz-za nesimmetrichnogo izlucheniya gravitacionnyh voln na poslednih stadiyah sliyaniya. Tipichnye skorosti poluchayutsya poryadka 100 km/s. Skorost' zavisit ot otnosheniya mass chernyh dyr, ot orientacii ih osei vrasheniya i ot skorosti vrasheniya. Provesti tochnyi raschet nelegko iz-za trudnosti zadachi, poetomu mnogie detali raspredeleniya skorostei ostayutsya neizvestnymi. Avtory dannoi stat'i issledovali, kakoi mozhet byt' maksimal'naya skorost', priobretennaya chernoi dyroi za schet effekta gravitacionno-volnovoi rakety. Soglasno ih raschetam maksimal'naya skorost' mozhet dostigat' 4000 km/s! astro-ph/0702724 Mogut li planety perezhit' evolyucioniruyushie zvezdy? (Can Planets survive Stellar Evolution?) Authors: Eva Villaver, Mario Livio Comments: 30 pages, 7 figures, 2 tables, accepted for publication in ApJ Avtory detal'no rassmatrivayut vopros o sud'be gazovyh planet vokrug zvezd s massami poryadka solnechnoi, uhodyashih s glavnoi posledovatel'nosti. Pokazano, chto planety s massoi men'she yupiterianskoi ne vyzhivayut na stadii planetarnoi tumannosti, esli iznachal'naya orbita byla primerno takaya zhe kak u Yupitera ili bolee tesnoi. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0702221 Tri stat'i Nordstrema Authors: Gunnar Nordstroem Comments: tri stat'i 1914-15 gg. Vylozhen perevod na angliiskii treh statei Nordstrema. Eto raboty "On the possibility of unifying the electromagnetic and the gravitational fields", "On a theory of electricity and gravitation", i "On a possible foundation of a theory of matter". Stat'i posvyasheny postroeniyu Nordstremom pyatimernoi teorii, prizvannoi ob'edinit' gravitacionnoe i elektromagnitnoe vzaimodeistviya (edakaya "teoriya vsego" obrazca 1915 goda). Obsudit' v ZhZh-soobshestve ru_astroph. Obsudit' na Astroforume v Nauchnoi panorame. cs.DL/0702140 Ocenka urovnya kooperacii v Vikipedii (Assessing the Value of Coooperation in Wikipedia) Authors: Dennis M. Wilkinson, Bernardo A. Huberman Comments: 14 pages Avtory obsuzhdayut nekotorye itogi, svyazannye s shestiletnei rabotoi Vikipedii. Provoditsya dovol'no interesnyi statisticheskii analiz. Obsudit' v ZhZh-soobshestve ru_astroph. Obsudit' na Astroforume v Nauchnoi panorame. Vernut'sya k nachalu stranicy

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