The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N83) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 26.06.2004. Molodoe zvezdnoe skoplenie NGC 7129: Perepis' zvezd 17.06.2004. Nablyudeniya Yupitera na XMM-Newton 15.06.2004. Novaya obrabotka glubokogo habblovskogo snimka 24.03.2004. Obzor neba po dannym SIGMA Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0409013 Molodye ostatki sverhnovyh i sami sverhnovye astro-ph/0409107 Goryachii saturn vokrug HD 88133 po dannym konsorciuma N2K astro-ph/0409204 Scintillyacii pul'sara J0737-3039A vo vremya zatmeniya Goryachie temy nedeli SKA Otdel'nye stat'i Molodye ostatki sverhnovyh i sami sverhnovye Pervye kosmicheskie struktury i ih proyavleniya Fundamental'naya fizika i SKA: proverka gravitacii v sil'nom pole ispol'zuya pul'sary i chernye dyry Kosmologicheskie fazovye perehody Poyas Gulda, zvezdoobrazovanie i lokal'naya mezhzvezdnaya sreda Priroda i evolyuciya kosmicheskogo magnetizma Goryachii saturn vokrug HD 88133 po dannym konsorciuma N2K Sovremennyi status nablyudatel'noi kosmologii Shum LISA ot zahvatov central'noi chernoi dyroi Spin-orbital'nyi rezonans i evolyuciya kompaktnyh dvoinyh sistem Dinamicheskie prilivy i evolyuciya zvezd v tesnyh dvoinyh Scintillyacii pul'sara J0737-3039A vo vremya zatmeniya Otkrytie rentgenovskogo istochnika na bol'shom z ochen' blizko ot yadra NGC 7319 Iz razdela physics Mezhdu zakonami i modelyami: filosofskie vyvody iz lagranzhevoi mehaniki 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" "Okno vo Vselennuyu" Zamechatel'nyi sait Astronomiya i teleskopostroenie Novosti nauki na Grani.Ru

Obzory preprintov astro-ph Vypusk N84 astro-ph za 01 - 12 sentyabrya 2004 goda: izbrannye stat'i Goryachie temy nedeli SKA Posle dlitel'nogo pereryva, vyzvannogo kanikulami, konferenciyami, issledovaniyami i t.d., vozvrashaemsya k goryachim temam. Na etot raz povodom stali raboty, posvyashennye ispol'zovaniyu sistemy radioteleskopov SKA. SKA - Square Kilometer Array. Gigantskaya sistema radioteleskopov (okonchatel'nyi dizain ne opredelen, na kartinke priveden odin iz variantov). Stoimost' proekta bolee milliarda dollarov. Stroit' budut dolgo. Zapusk na polnuyu moshnost' proizoidet ne ranee 2020 goda. Chuvstvitel'nost' SKA prevzoidet Aresibo v 10 raz. Posle proshedshih konferencii nachinaya s konca iyulya stali poyavlyat'sya stat'i, posvyashennye proektu SKA. Vydelim nekotorye iz nih. Nachnem s dvuh statei, posvyashennyh poisku vnezemnyh civilizacii. Eto raboty astro-ph/0408473 i astro-ph/0408474. Tochnee, sobstvenno SETI posvyashena tol'ko pervaya. Vtoraya rassmatrivaet vopros poiska ekzoplanet, odnako tozhe ne bez vyhoda na vnezemnuyu zhizn'. Otmetim takzhe stat'yu Large-scale Structure with the SKA, gde, kak yasno iz nazvaniya, rassmotreny issledovaniya krupnomasshtabnoi struktury s pomosh'yu etogo radioteleskopa. A takzhe rabotu Transient phenomena , v kotoroi rech' idet o tranzientnyh (vspyshechnyh) fenomenah, kotorye mozhno budet izuchat' na novom superteleskope. Eshe odna stat'ya posvyashena issledovaniyu sil'no gravitacionnogo linzirovaniya s pomosh'yu SKA. Material astro-ph/0409097 posvyashen izucheniyu evolyucii sverhmassivnyh chernyh dyr v centrah galaktik na bol'shih krasnyh smesheniyah (eshe po etoi tematike mozhno posmotret' svezhuyu rabotu "The Growth of the Earliest Supermassive Black Holes and Their Contribution to Reionization"). Stat'ya The Origin and Evolution of Cosmic Magnetism tozhe svyazana so SKA. Rech' idet o takoi probleme, kak proishozhdenie pervyh magnitnyh polei v kosmose, ih evolyucii i t.p. Okazyvaetsya, chto zdes' ot SKA takzhe mozhno ozhidat' ochen' interesnyh rezul'tatov. Obsuzhdayutsya i nablyudeniya zvezd na SKA. S. M. White pishet o gryadushih nablyudeniyah zvezdnyh atmosfer i vetrov dlya zvezd samyh raznyh tipov. Krome togo, poyavilas' otdel'naya stat'ya po nablyudeniyam zvezd na pozdnih stadiyah evolyucii: http://arXiv.org/abs/astro-ph/0409168. Osobo obsuzhdaetsya vozmozhnost' nablyudeniya pyli v atmosferah etih zvezd. Dzhekson rassmatrivaet srazu i obrazovanie pervyh zvezd, i evolyuciyu aktivnyh yader, i ih vzaimosvyaz'. I vse eto v prilozhenii k budushim nablyudeniyam na SKA. Bezuslovno ne ostanetsya bez vnimaniya i znamenitaya chastota 21 sm. Kanekar i Briggs pishut o tom, kak mozhno budet poluchat' informaciyu o svoistvah galaktik po nablyudeniyam poglosheniya v linii 21 sm. A Furlanetto i (snova) Briggs pishut o "tomografii vselennoi na bol'shih krasnyh smesheniyah s pomosh'yu SKA". Izuchenie vselennoi na malyh krasnyh smesheniyah rassmatrivaetsya Braunom. S pomosh'yu SKA planiruyut izuchat' i Solnechnuyu sistemu! Osoboe vnimanie planiruetsya udelit' atmosferam i magnitosferam planet-gigantov, poverhnosti planet zemnoi gruppy, a takzhe malym telam. Obo vsem etom v stat'e Solar System Science with SKA. Nu i nakonec nizhe vy naidete bolee podrobnoe opisanie raboty Kramera, posvyashennoi issledovaniyu ekzoticheskih dvoinyh radiopul'sarov na blago vsei fundamental'noi fiziki. Referaty otdel'nyh statei astro-ph/0409013 Molodye ostatki sverhnovyh i sami sverhnovye (Young core collapse supernova remnants and their supernovae) Authors: Roger A. Chevalier Comments: 42 pages, ApJ, submitted Sushestvuet neskol'ko tipov sverhnovyh, razlichaemyh po vidu krivoi bleska i po spektral'nym harakteristikam. V dannoi stat'e avtor rassmatrivaet sverhnovye, svyazannye s kollapsom yadra massivnoi zvezdy (core collapse supernovae). Vydelyayut takie ih tipy: IIP, 1987-A-like, IIL/b, Ib/c. Vse oni detal'no opisyvayutsya v etoi stat'e. Osnovnaya cel' stat'i - svyazat' izvestnye molodye ostatki sverhnovyh s tipom sverhnovoi, t.e. opredelit', kakov byl tip sverhnovoi, porodivshii dannyi nablyudayushiisya ostatok. Posle opisaniya teorii rassmotreno 14 ostatkov (kak s pul'sarami, tak i bez). Vozmozhno, chto stat'yu stoit chitat' vmeste s rabotoi Rotating Core Collapse and Bipolar Supernova Explosions. obzor astro-ph/0409018 Pervye kosmicheskie struktury i ih proyavleniya (The First Cosmic Structures and their Effects) Authors: Benedetta Ciardi, Andrea Ferrara Comments: 96 pages, 25 figures, Space Science Reviews, in print. In this submission, several figures were compressed, resulting in a reduction in quality. A postscript file with the full figures is available at http://www.arcetri.astro.it/science/cosmology/ Obsuzhdayutsya dostizheniya i problemy v takoi aktual'noi oblasti sovremennoi astrofiziki kak obrazovanie pervyh struktur. S obrazovaniem pervyh ob'ektov svyazano mnogo zagadok. Hotya my znaem uzhe galaktiki na z=10, tem ne menee my tak i ne vidim samye pervye istochniki izlucheniya. Sovremennaya teoriya schitaet, chto eto byli massivnye zvezdy, no hochetsya bol'she yasnosti... My znaem, chto aktivnost' kvazarov navernyaka svyazana so sverhmassivnymi chernymi dyrami, i my vidim kvazary na krasnyh smesheniyah 5-7. Odnako, neponyatno, kak chernye dyry uspeli nabrat' bol'shuyu massu za stol' malyi otrezok kosmicheskoi evolyucii... Voprosov mnogo. Mnogie iz nih obsuzhdayutsya v obzore. astro-ph/0409020 Fundamental'naya fizika i SKA: proverka gravitacii v sil'nom pole ispol'zuya pul'sary i chernye dyry (Fundamental Physics with the SKA:Strong-Field Tests of Gravity Using Pulsars and Black Holes) Authors: M. Kramer Comments: Talk presented at 'Exploring the Cosmic Frontier - Astrophysical Instrument for the 21st Century', to be published in Springer series "ESO Astrophysics Symposia", 4 pages, 1 figure SKA - planiruemyi radioteleskop. Eto budet samoe moshnoe orudie radioastronomii, kogda libo sozdannoe na Zemle. Nedavno proshla konferenciya, posvyashennaya etomu proektu, a potomu v Arhive poyavlyaetsya mnozhestvo statei na etu temu. Pered vami odna iz nih. Osnovnoi upor avtor delaet na gryadushie issledovaniya dvoinyh radiopul'sarov, gde vtorym komponentom yavlyaetsya chernaya dyra. Vladimir Lipunov i ego gruppa eshe 10-20 let nazad provodila raschety, pokazavshie, chto takie sistemy dolzhny vstrechat'sya primerno raz na neskol'ko tysyach otkrytyh radiopul'sarov. Seichas izvestno bolee 1000 radiopul'sarov. SKA budet videt' prakticheski vse pul'sary v Galaktike, chei luch voobshe popadaet na Zemlyu. Poetomu sistemy pul'sar+dyra neizbezhno budut otkryty. Kramer v svoei rabote rassuzhdaet o tom, kakie dannye, vazhnye s tochki zreniya fundamental'noi fiziki, mozhno budet poluchit' issleduyu takuyu ekzoticheskuyu paru. lekciya astro-ph/0409042 Kosmologicheskie fazovye perehody (Cosmological Phase Transitions) Authors: Norbert Straumann Comments: 54 pages, 9 figures, Invited lecture at the third Summer School on Condensed Matter Research, 7-14 August 2004, Zuoz, Switzerland V lekcii rassmotreny fazovye perehody, proishodyashie v rannei vselennoi po mere ee rasshireniya (i sootvetstvuyushih padenii temperatury i plotnosti). Tekst napolnen mnozhestvom formul, poetomu chtenie budet sovsem ne legkim ... miniobzor astro-ph/0409096 Poyas Gulda, zvezdoobrazovanie i lokal'naya mezhzvezdnaya sreda (The Gould Belt, star formation, and the local interstellar medium) Authors: Isabelle A. Grenier Comments: 10 pages, 4 figures Istoriya lokal'noi mezhzvezdnoi sredy i lokal'nogo (zhe) zvezdoobrazovaniya na rasstoyanii do neskol'kih sot parsek i za period v neskol'ko desyatkov millionov let pochti polnost'yu opredelyaetsya poyasom Gulda. Avtor rassmatrivaet pochti vse: zony HI i H2, obrazovanie obychnyh i massivnyh zvezd, a iz poslednih - rentgenovskih istochnikov. miniobzor astro-ph/0409100 Priroda i evolyuciya kosmicheskogo magnetizma (The Origin and Evolution of Cosmic Magnetism) Authors: B.M.Gaensler et al. Comments: 11 pages, 7 embedded. Magnetizm (elektromagnetizm) - odno iz chetyreh fundamental'nyh fizicheskih vzaimodeistvii. Odnako proishozhdenie magnitnyh polei v zvezdah, galaktikah i ih skopleniyah vo mnogom ostaetsya otkrytoi problemoi. Chto porodilo nachal'nye magnitnye polya? Sovremennye polya voznikli iz nachal'nyh cherez dinamo-effekty ili deistvovali drugie mehanizmy? Na eti i drugie voprosy pytaetsya otvetit' avtor dannogo obzora. astro-ph/0409107 Goryachii saturn vokrug HD 88133 po dannym konsorciuma N2K (A Hot Saturn Planet Orbiting HD 88133, from the N2K Consortium) Authors: D.A.Fischer et al. Comments: 19 pages, 6 figures N2K konsorcium (v kotoryi vhodyat chetyre teleskopa) provodit spektral'nyi poisk planet u bogatyh metallami blizkih zvezd. V ramkah proekta byli provedeny nablyudeniya bolee 14000 zvezd glavnoi posledovatel'nosti i subgigantov na rasstoyanii do 110 pk, yarche V=10.5 i s 0.4 < B-V < 1.2 V rezul'tate u bogatoi metallami zvezdy HD 88133 spektral'nogo klassa G5IV byla obnaruzhena planeta s orbital'nym periodom 3.415 dnei. Massa planety sostavlyaet m sin i=0.29 mass Yupitera. obzor astro-ph/0409131 Sovremennyi status nablyudatel'noi kosmologii (The current status of observational cosmology) Authors: Jeremiah P. Ostriker and Tarun Souradeep Comments: 13 pages, 3 figures Metr astrofiziki HH veka Dzheremi Ostraiker rasskazyvaet o sovremennom sostoyanii nablyudatel'noi kosmologii. Rassmatrivayutsya izmeneniya, proizoshedshie s nachalom "epohi vysokotochnoi kosmologii". Rassmatrivayutsya voprosy tochnosti opredeleniya kosmologicheskih parametrov po nablyudeniyam anizotropii mikrovolnovogo fona i krupnomasshtabnoi struktury. gr-qc/0409010 Shum LISA ot zahvatov central'noi chernoi dyroi (Confusion Noise from LISA Capture Sources) Authors: Leor Barack and Curt Cutler Comments: 26 pages, 23 figures Central'nye chernye dyry galaktiki zahvatyvayut zvezdy i kompaktnye ob'ekty (v osnovnom belye karliki). Gravitacionnoe izluchenie etih processov popadaet v diapazon chuvstvitel'nosti kosmicheskogo lazernogo interferometra LISA (milligercy). Amplituda ukazannyh signalov dostatochno velika, chtoby oni byli zaregistrirovany. Odnako, osnovnaya chast' ukazannyh signalov ne budet razreshena na individual'nye zahvaty, t.e. ostanetsya shumom. A lyuboi shum vreden dlya nablyudenii. Mozhno li budet zaregistrirovat' chto-to eshe na fone ukazannogo shuma? Otvet da. astro-ph/0409174 Spin-orbital'nyi rezonans i evolyuciya kompaktnyh dvoinyh sistem (Spin-Orbit Resonance and the Evolution of Compact Binary Systems) Authors: Jeremy D. Schnittman Comments: 19 pages, 10 figures, submitted to Phys.Rev.D Osi vrasheniya neitronnyh zvezd v slivayushihsya dvoinyh sistemah v nachale etogo processa mogut imet' proizvol'nuyu orientaciyu. Odnako po mere sblizheniya zvezd ih orientaciya menyaetsya. Prichinoi etogo yavlyayutsya prilivnye vzaimodeistviya, osobenno effektivnye pri vozniknovenii rezonansov. Osi zvezd mogut vyravnivat'sya s orbital'nym momentom (eta situaciya bez vozniknoveniya spin-orbital'nogo rezonansa pokazana na risunke sleva), libo proishodit "rezonansnyi zahvat" i poluchaetsya sovsem drugoe konechnoe raspredelenie (risunok sprava). astro-ph/0409203 Dinamicheskie prilivy i evolyuciya zvezd v tesnyh dvoinyh (Dynamic Tides and the Evolution of Stars in Close Binaries) Authors: B. Willems, A. Claret Comments: 10 pages, 3 figures Prilivy v tesnyh dvoinyh sistemah, deistvuyut takzhe, kak mezhdu Zemlei i Lunoi. Ih osnovnoe deistvie proyavlyaetsya v cirkulyarizacii orbity (ekscentrisitet stremitsya k nulyu) i v sinhronizacii vrasheniya zvezd (periody vrasheniya zvezd stanovyatsya ravnymi orbital'nomu, a osi perpendikulyarnymi k ploskosti orbity) zvezdy navsegda povorachivayutsya drug k drugu odnim bokom. No vse eti processy, tak zhe kak v sluchae nashei planety i ee sputnika, proishodyat ochen' medlenno, parametry izmenyayutsya za ochen' bol'shie intervaly vremeni. Odnako ukazannaya kartina rezko menyaetsya, esli chastota prilivov sovpadaet s odnoi iz chastot sobstvennyh kolebanii zvezd ... astro-ph/0409204 Scintillyacii pul'sara J0737-3039A vo vremya zatmeniya (Probing the Eclipse of J0737-3039A with Scintillation) Authors: W.A.Coles et al. Comments: 6 pages, 7 figures, submitted to ApJ Neskol'ko zamechanii po suti dannoi stat'i: 1). J0737-3039A samyi populyarnyi na segodnya dvoinoi radiopul'sar: obe komponenty etoi sistemy yavlyayutsya pul'sarami (odin A millisekundnym, drugoi B "obychnym"), orbital'nyi period etogo pul'sara samyi korotkii iz vseh izvestnyh, krome togo my smotrim na etu sistemu pochti s rebra. 2). I pul'sar, i Zemlya dvizhutsya v prostranstve, v rezul'tate chego luch zreniya peresekaet neodnorodnosti mezhzvezdnoi sredy. Refrakciya gigagercovogo izlucheniya pul'sarov na etih neodnorodnostyah privodit k izmeneniyu registriruemoi na Zemle intensivnosti izlucheniya pul'sara. Ukazannyi effekt nazyvaetsya mezhzvezdnymi scintillyaciyami izlucheniya pul'sarov. Po chastote podobnyh pul'sacii v svoe vremya opredelyali prostranstvennuyu skorost' etih istochnikov (izmeryayut i seichas, no mezhkontinental'naya radiointeferometriya delaet eto tochnee). 3). Razmer neitronnoi zvezdy okolo 10 km i, konechno, dve takie zvezdy v sisteme J0737-3039 ne zatmevayut drug druga neposredstvenno. Pod "zatmeniyami" v etoi sisteme podrazumevayutsya momenty vremeni, kogda izluchenie millisekundnogo komponenta J0737-3039A (on v etot moment raspolozhen szadi) prohodit skvoz' protyazhennuyu magnitosferu vtorogo komponenta J0737-3039B. Uzhe obnaruzhen celyi ryad vpolne nablyudaemyh v radiodiapazone effektov podobnogo "magnitnogo" zatmeniya. Nablyudeniya na chastotah 820 i 1440 MGc na teleskope Grin Benk pokazali, chto scintillyacii izlucheniya oboih komponentov v moment zatmeniya stanovitsya ochen' sil'no skorrelirovannymi. Eto pozvolyaet ocenit' rasstoyanie mezhdu komponentami sistemy v kartinnoi ploskosti v moment ih maksimal'nogo sblizheniya, kak d=4000+/-2000 km, a naklonenie orbity, sootvetstvenno, kak i=90.26+/-0.13o (samoe tochnoe na segodnyashnii den' opredelenie!). astro-ph/0409215 Otkrytie rentgenovskogo istochnika na bol'shom z ochen' blizko ot yadra NGC 7319 (The Discovery of a High Redshift X-ray Emitting QSO Very Close to the Nucleus of NGC 7319) Authors: P.Galianni et al. Comments: 10 pages, 8 figures. Yarkii rentgenovskii istochnik obnaruzhen s borta Chanda vsego v 8" sekundah ot yadra seifertovskoi galaktiki vtorogo tipa NGC 7319. Krasnoe smeshenie istochnik (tochnee ego opticheskogo kounterparta) sostavlyaet z=2.114, a ego rentgenovskaya svetimost', sootvetstvenno, Lx=1.5x1040 erg/s. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0409030 Mezhdu zakonami i modelyami: filosofskie vyvody iz lagranzhevoi mehaniki (Between Laws and Models: Some Philosophical Morals of Lagrangian Mechanics) Authors: Jeremy Butterfield Comments: 106 pages, no figures 106 stranic (bez kartinok) filosofskih vyvodov iz lagranzhevoi mehaniki! Na samom dele stat'ya (pervaya v serii) mozhet okazat'sya ves'ma interesnoi (my ne uspeli ee prochest' celikom). Avtor polagaet, chto lagranzheva mehanika ne poluchila adekvatnogo filosofskogo osmysleniya. On pomeshaet lagranzhev podhod mezhdu podhodom "zakonov prirody" i "model'nym" podhodom. Bylo by interesno uznat' mnenie filosofov nauki ob etoi stat'e. Vernut'sya k nachalu stranicy

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Sm. takzhe: Obzory elektronnyh preprintov Astro-Ph Opublikovan ocherednoi obzor preprintov astro-ph Luchshie raboty v astro-ph v 2006 godu Luchshie nablyudatel'nye raboty v astro-ph za 2005 g. Obzory elektronnyh preprintov Astro-Ph za 2002 g. Obzor obzorov astro-ph: luchshee za pervuyu polovinu 2003 g. Obzor obzorov astro-ph: luchshee za vtoruyu polovinu 2003 g. Vse publikacii na tu zhe temu >>