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The R.A.P.Project "Prosto o slozhnom" "Astro-ph za 2006 g." Nemnogo statistiki Predydushii vypusk (N195) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 09.09.2008. Chernyi val's s feierverkom 29.08.2008. "Kotik, cheshirchik ...." 28.08.2008. Ne temnaya li eto materiya nasledila? 19.08.2008. Ochen' legkii millisekundnyi pul'sar 08.08.2008. Portret beta Liry 22.01.2008. Chernaya dyra v Omega Centavra 11.01.2008. Dvoinoe einshteinovskoe kol'co 06.08.2007. Kto eto tam tak bumknul? 14.03.2007. Taina kolec sverhnovoi 06.03.2007. BL Lac v zhestkom gamma Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" arxiv/0810.0444 Sostoyanie i budushee nazemnoi TeVnoi astronomii arxiv/0810.0514 Kvantovoe prostranstvo-vremya: za kontinuumom Minkovskogo i Einshteina arxiv/0810.0649 Vospominaniya o chislennyh shemah arxiv/0810.0919 Tranzitnye planety po rezul'tatam kosmicheskogo proekta CoRoT VI. CoRoT-Exo-3b: Pervyi dostovernyh obitatel' pustyni buryh karlikov arxiv/0810.14269 Modelirovanie raspredeleniya citiruemosti za stoletie arxiv/0810.1522 Razlichiya i shodstva holodnyh galo temnogo veshestva arxiv/0810.1601 Akrobatika zhidkosti - video Otdel'nye stat'i Evolyucioniruyushee goryachee pyatno, vrashayusheesya vokrug Sgr A* Obzornyi poisk periodicheskih gravitacionnyh voln po dannym sensa S5 LIGO Geliosfera vo vremeni Sostoyanie i budushee nazemnoi TeVnoi astronomii Obrazovanie strui v chislennom MGD modelirovanii Svezhie neitrino ot IceCube Kosmologiya iz Antarktiki Tranzitnye planety po rezul'tatam kosmicheskogo proekta CoRoT VI. CoRoT-Exo-3b: Pervyi dostovernyh obitatel' pustyni buryh karlikov Vybor astronomicheskih ploshadok: ob ispol'zovanii sputnikovyh dannyh po monitoringu soderzhaniya aerozolei Astrofizika vysokih energii s novym pokoleniem radioastronomicheskih ustanovok Obrazovanie massivnyh zarodyshevyh chernyh dyr: stolknoveniya v pervyh zvezdnyh skopleniyah Al'ternativnyi variant proishozhdeniya giperskorostnyh zvezd O galakticheskom tempe rozhdeniya neitronnyh zvezd Razlichiya i shodstva holodnyh galo temnogo veshestva Pul'sary kak istochniki kosmicheskih pozitronov vysokih energii Iz razdela physics Vospominaniya o chislennyh shemah Kvantovoe prostranstvo-vremya: za kontinuumom Minkovskogo i Einshteina Modelirovanie raspredeleniya citiruemosti za stoletie Akrobatika zhidkosti - video 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 Obsudit' v bloge na Subscribe.ru Avtor proekta Sergei Popov Ranee uchastvovali: Mihail Prohorov Ekaterina Kasimova Diskussii po stat'yam Arhiva CosmoCoffee arXiv Blog Postav'te u sebya nashu knopku! Proekt razmeshen na saitah: Smotri takzhe diskussii i blogi: Informacionnye partnery Vy mozhet takzhe razmestit' na svoem saite nashu lentu obzorov Kniga avtora 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 N196 astro-ph za 01 - 12 oktyabrya 2008 goda: izbrannye stat'i Referaty otdel'nyh statei arxiv:0810.0138 Evolyucioniruyushee goryachee pyatno, vrashayusheesya vokrug Sgr A* (An evolving hot spot orbiting around Sgr A*) Authors: M. Zamaninasab et al. Comments: 7 pages, 5 figures, contribution for the conference "The Universe under the Microscope" (AHAR 2008), to be published in Journal of Physics: Conference Series by Institute of Physics Publishing Po nablyudeniyam v mae 2007 goda odnoi iz vspyshek SGR A* v blizhnem IK-diapazone avtory stroyat model', v kotoroi izmenenie parametrov vspyshki ob'yasnyaetsya goryachim pyatnom v diske. Pyatno vrashaetsya differencial'no, v rezul'tate ono evolyucioniruet, chto i nablyudaetsya. Sm. takzhe drugie svezhie raboty etoi gruppy, svyazannye s issledovaniem nashei central'noi chernoi dyry i oblasti vokrug nee: arxiv:0810.0168 (o skoordinirovannyh nablyudeniyah SGR A* v raznyh diapazonah spektra), arxiv:0810.0138 (o nablyudeniyah SGR A* v millimetrovom diapazone), arxiv:0810.0138 (ob okoloyadernom zvezdnom skoplenii v centre Galaktiki). arxiv:0810.0283 Obzornyi poisk periodicheskih gravitacionnyh voln po dannym sensa S5 LIGO (All-sky LIGO search for periodic gravitational waves in the early S5 data) Authors: LIGO Scientific Collaboration Comments: 6 pages, 1 figre Avtory privodyat ocherednye verhnie predely, kotorye stanovyatsya vse interesnee i interesnee. Na etot raz rech' idet o poiske po vsemu nebu periodicheskogo signala po dannym LIGO na chastotah 50-1100 Gc. Dlya neitronnyh zvezd s ekvatorial'noi elliptichnost'yu vyshe odnoi millionnoi eto daet predel na rasstoyanie 500 pk. T.e., vplot' do etogo rasstoyaniya net bystrovrashayushihsya neitronnyh zvezd s takim szhatiem. miniobzor arxiv:0810.0441 Geliosfera vo vremeni (The Heliosphere in Time) Authors: H-R. Muller et al. Comments: 12 pages, to appear in Space Science Reviews Geliosfera postoyanno izmenyaetsya, poskol'ku Solnce proletaet skvoz' mezhzvezdnuyu sredu s raznymi parametrami. Izmenyayutsya svoistva sredy - plotnost', temperatura, skorost' otnositel'no Solnca - "dyshit" geliosfera. Avtory obsuzhdayut kakoi mogla byt' geliosfera v proshlom i kakoi mozhet stat' v budushem. Vse eti izmeneniya "galakticheskoi pogody" mogut imet' sovsem neakademicheskoe znachenie! Ispol'zuya dannye radionablyudenii, avtory delayut vyvod, chto bolee 9 procentov vremeni Solnce provodit v teploi neitral'noi (ili chastichno ionizovannoi) srede. obzor arxiv:0810.0444 Sostoyanie i budushee nazemnoi TeVnoi astronomii (The Status and future of ground-based Tev gamma-ray astronomy. White paper prepared for the Division of Astrophysics of the American Physical Society) Authors: J. Buckley et al. Comments: 133 pages Nazemnaya gamma-astronomiya - eto burno razvivayushayasya oblast'. T.e., tuda budut vkladyvat' sredstva, a potomu nuzhen detal'nyi analiz togo, chto sdelano i chto mozhno sdelat'. Etomu i posvyashen ogromnyi obzor. Rassmotreny raznye tipy istochnikov, obsuzhdeno, pochemu ih izuchenie vazhno. Opisany sushestvuyuie proekty, nekotorye tehnicheskie aspekty ih raboty i plany na blizhaishee budushee. Vtoruyu chast' stat'i, posvyashennuyu gamma-vspleskam v smysle ih nablyudenii na nazmenyh TeVnyh ustanovkah, mozhno naiti tut: arxiv:0810.0520. Chast', posvyashennuyu ostatkam sverhnovyh i kosmicheskim lucham - zdes': arxiv:0810.0673. Pro galakticheskie kompaktnye ob'ekty chitaite tut: arxiv:0810.0683. Sm. takzhe seriyu svezhih statei po nablyudeniyam na ustanovke VERITAS, naprimer stat'i arxiv:0810.0474, arxiv:0810.0515. miniobzor arxiv:0810.0526 Obrazovanie strui v chislennom MGD modelirovanii (Jet Formation in MHD Simulations) Authors: F. Chris Fragile Comments: 14 pages, invited review for VII Microquasar Workshop Nebol'shoi, a potomu neizbezhno nepolnyi, obzor po modelirovaniyu struinyh istechenii ot chernyh dyr. Avtor rassmatrivaet imenno obrazovanie strui, v to vremya kak mnogie issledovaniya svyazany s ustoichivost'yu strui, ih proyavleniyami i tp. V rassmotrennyh modelyah dlya zapuska dzheta neobhodimo magnitnoe pole. arxiv:0810.0573 Svezhie neitrino ot IceCube (Recent $\nu$s from Ice Cube) Authors: Spencer R. Klein for the IceCUbe Collaboration Comments: Invited talk presented at Neutrino 2008; 7 pages Neitrinnyi detektor IceCube, sooruzhaemyi v Antarktide, gotov uzhe napolovinu. Sootvetstvenno, uzhe detektiruyutsya sobytiya. O sovremennom statuse proekta i nekotoryh ego predvaritel'nyh rezul'tatah mozhno prochest' v stat'e. O svezhih rezul'tatah s SuperKamiokande po oscillyaciyam solnechnyh i atmosfernyh neitrino mozhno prochest' tut: arxiv:0810.0573. obzor arxiv:0810.0737 Kosmologiya iz Antarktiki (Cosmology from Antarctica) Authors: Robert W. Wilson, Antony A. Stark Comments: 17 pages, for publication in @Smithsonian at the Poles@, proceedings of Smithsonian IPY Conference Na antakrticheskom plato holodno, yasno i suho. Ideal'noe mesto dlya astronomicheskih nablyudenii, osobenno esli govorit' o nazemnyh priborah dlya izucheniya mikrovolnovogo fona. V samom dele, uzhe cht' li ne desyatok eksperimentov byl osushestvlen v etoi oblasti. Eto ne tol'ko pribory, ustanovlennye na zemle, no i balonnye eksperimenty. Avtory summiruyut poluchennye rezul'taty i ispol'zovavshiesya metoda, i rasskazyvayut o novom proekte 10-metrovogo teleskopa - SPT (Soth Pole Telescope), kotoryi budet issledovat' anizotropiyu relikta na masshtabe menee 1 gradusa. Sam teleskop byl ustanovlen chut' bolee goda nazad, no polnaya realizaciya proekta potrebuet vremeni. arxiv:0810.0919 Tranzitnye planety po rezul'tatam kosmicheskogo proekta CoRoT VI. CoRoT-Exo-3b: Pervyi dostovernyh obitatel' pustyni buryh karlikov (Transiting exoplanets from the CoRoT space mission VI. CoRoT-Exo-3b: The first secure inhabitant of the brown-dwarf desert) Authors: M. Deleuil et al. Comments: 11 pages, 12 figures, accepted for A&A V ramkah kosmicheskogo proekta CoRoT otkryta interesnaya tranzitnaya planeta. Tochnee, ne ochen' yasno nado li klassificirovat' eto kak planetu. Ob'ekt vrashaetsya na ochen' tesnoi orbite (period 4.26 dnya) vokrug zvezdy klassa F3. Massa ob'ekta okolo 20-23 mass Yupitera, plotnost' - 20-30 g v kubicheskom santimetre (!). Eto ili unikal'no malomassivnyi buryi karlik ili predstavitel' nekoego novogo klassa "superplanet". arxiv:0810.0927 Vybor astronomicheskih ploshadok: ob ispol'zovanii sputnikovyh dannyh po monitoringu soderzhaniya aerozolei (Astronomical site selection: On the use of satellite data for aerosol content monitoring) Authors: A.M. Varela et al. Comments: 16 pages with 13 figures, accepted for MNRAS (2008) Avtory kriticheski obsuzhdayut predlozhenie ispol'zovat' sputnikovye dannye dlya monitoringa soderzhaniya aerozolei s cel'yu vybora optimal'nyh mest dlya astronomicheskih nablyudenii. Vyvod sostoit v tom, chto vse-taki nel'zya oboitis' bez pryamyh izmerenii na meste. Odnih sputnikov malo. miniobzor arxiv:0810.0951 Astrofizika vysokih energii s novym pokoleniem radioastronomicheskih ustanovok (High energy astrophysics with the next generation of radip astronomy facilities) Authors: Rob Fender Comments: 9 pages, to appear in the proceedings of the 7th Microquasar workshop, Foca, Turkey Avtor obsuzhdaet, kak novye radioproekty (v pervuyu ochered' LOFAR) pomogut astrofizike vysokih energii. V pervuyu ochered', avtor ozhidaet proryva blagodarya gryadushei vozmozhnosti monitoringa vsego neba v radiodiapazone. Vmeste s rentgenovskimi dannymi, eto mozhet zdorovo pomoch' v izuchenii ryada yavlenii. Krome togo, daetsya poleznaya svodka planov po vvodu v stroi novyh radioustanovok. Sm. takzhe arxiv:0810.0954. arxiv:0810.1057 Obrazovanie massivnyh zarodyshevyh chernyh dyr: stolknoveniya v pervyh zvezdnyh skopleniyah (Formation of massive black hole seeds: runaway collisions in the first stellar clusters) Authors: Devecchi Berbadetta, Volonteri Marta Comments: 14 pages, 8 figures, Submitted to ApJ on 09/08/2008 Sushestvuet takaya problema: Uzhe na krasnom smeshenii poryadka 5 my vidim kvazary. T.e., chernye dyry v nih uzhe dostatochno massivny. Poyavit'sya chernye dyry mogli iz pervyh zvezd na z~10-20. No prosto pervye zvezdy dayut dyry s massami 100-200 mass Solnca, i oni ne uspeyut dorasti do desyatkov millionov solnechnyh k z~5. V dannoi rabote avtory s pomosh'yu islennogo modelirovaniya rassmatrivayut model', kotoraya mozhet reshit' problemu. Ideya sostoit v tom, chto neskol'ko procentov pervyh protogalatik na z~10-20 imeyut usloviya, dostatochnye dlya rozhdeniya plotnogo skopleniya massivnyh zvezd v centrah ih galo. Takoe skoplenie ochen' bystro dinamicheski evolyucioniruet. Zvezdy nachinayut slivat'sya drug s drugom bystree, chem zakonchat svoyu evolyuciyu. V itoge obrazuetsya ochen' massivnaya zvezda, kotoraya ostavlyaet posle sebya dyru s massoi 1000-2000 solnechnyh. I takaya dyra uzhe uspeet vyrasti, chtoby na z~5 my uvideli kvazar. arxiv:0810.1429 Al'ternativnyi variant proishozhdeniya giperskorostnyh zvezd (An alternative origin for hypervelocity stars) Authors: Mario G. Abadi et al. Comments: Apj Letters, submitted, 8 pages, 4 figures Napomnyu, chto v poslednie gody v galo Galaktiki byli otkryty zvezdy so skorost'yu dvizheniya neskol'ko soten kilometrov v sekundu. Standartnym ob'yasneniem yavlyaetsya dinamicheskoe vzaimodeistvie so sverhmassivnoi chernoi dyroi v centre Galaktiki. V rezul'tate vzaimodeistviya zvezda mozhet byt' vybroshena s bol'shoi skorost'yu. V dannoi stat'e avtory predlagayut sleduyushuyu al'ternativu. Ih modelirovanie pokazyvaet, chto razrushenie karlikovoi galaktiki-sputnika v central'noi oblasti Mlechnogo Puti takzhe mozhet privesti k poyavleniyu zvezd s ochen' bol'shimi skorostyami. Avtory pokazyvayut, chto v blizhaishem budushem mozhno budet vyyasnit' kakoi iz scenariev veren, t.k. nekotorye ih predskazaniya ochen' razlichny. Naprimer, v scenarii s galaktikoi-sputnikom budut oblasti, v kotoryh giperskorostnyh zvezd budet gorazdo bol'she. arxiv:0810.1512 O galakticheskom tempe rozhdeniya neitronnyh zvezd (On the birthrates of galactic neutron stars) Authors: E.F. Keane, M. Kramer Comments: accepted for publication in MNRAS, 9 pages, 3 figures Sushestvuet neskol'ko populyacii otnositel'no molodyh odinochnyh neitronnyh zvezd: pul'sary, Velikolepnaya semerka, SGRs, AXPs, RRATs, CCOs ... Evolyucionnye svyazi mezhdu nimi neponyatny. Krome togo, skladyvaetsya paradoksal'naya situaciya: summa ocenok tempa rozhdeniya kazhdoi populyacii prevoshodit ocenku galakticheskogo tempa sverhnovyh. Znachit, vryad li mozhno oboitis' bez predpolozheniya o tom, chto kakie-to iz populyacii prinadlezhat odnomu evolyucionnom treku. Avtory zashishayut ideyu o tom, chto pul'sary, RRATs i Velikolepnaya semerka - eto raznye proyavleniya odnogo evolyucionnogo treka (t.e., prosto my vidim raznye stadii evolyucii). Lichno mne seichas kazhetsya, chto bolee veroyaten drugoi scenarii, zashishaemyi, naprimer, Hose Ponsom. A imenno. Raspad magnitnogo polya i nagrev kory pozvolyaet postroit' cepochku SGRs, AXPs -> Velikolepnaya semerka, RRATs i pul'sary s bol'shim magnitnym polem. arxiv:0810.1522 Razlichiya i shodstva holodnyh galo temnogo veshestva (The diversity and similarity of cold dark matter halos) Authors: Julio F. Navarro et al. Comments: Submitted to MNRAS Avtory predstavlyayut rezul'taty proekta Aquarius po modelirovaniyu obrazovaniya galaktik. Formirovanie galaktik - eto, v pervuyu ochered', formirovanie galo temnogo veshestva. V predstavlyaemyh modelyah galo sostoit iz bolee chem milliarda chastic, a v nachal'nom modelirovanii uchastvovalo bolee 4 milliardov chastic (prosto ne vse v konce scheta vhodyat v sostav galo). Obnaruzheno nebol'shoe sistematicheskoe otklonenie ot teoreticheskih profilei Navarro, Frenka i Vaita, kotorye aktivno ispol'zuyutsya v raznyh modelyah (vse troe, kstati, vhodyat v chislo avtorov obsuzhdaemoi stat'i). arxiv:0810.1527 Pul'sary kak istochniki kosmicheskih pozitronov vysokih energii (Pulsars as the sources of high energy cosmic ray positrons) Authors: Dan Hooper et al. Comments: 10 pages, 5 figures Vsem pamyatna nedavnyaya diskussiya po rezul'tatam raboty sputnika PAMELA. Na neskol'kih konferenciyah komanda sputnika dolozhila ob obnaruzhenii izbytka pozitronov. T.e., standartnye modeli rozhdeniya etih chastic v mezhzvezdnoi srede ne mogut ob'yasnit' predstavlennye rezul'taty. Otsyuda mnogie sdelali vyvod, chto effekt mozhet naiti ob'yasnenie v rozhdenii elektron-pozitronnyh par pri annigalyacii chastic temnoi materii. V etoi stat'e avtory obsuzhdayut kuda bolee konservativnuyu gipotezu o tom, chto izbytok pozitronov mozhet porozhdat'sya pul'sarami. Dlya ob'yasneniya vsego izbytka im trebuetsya dostatochno vysokii temp rozhdeniya gamma-pul'sarov vo vsei Galaktike, a takzhe dostatochnaya aktivnost' blizkih ob'ektov. Poka vse ukladyvaetsya v izvestnye ogranicheniya. Skoree vsego, okonchatel'nyi otvet dadut dannye sputnika GLAST-Fermi, kotorye poyavyatsya uzhe v blizhaishii god-dva. Kstati, o planiruemyh nabldeniyah pul'sarov na GLAST-Fermi mozhno prochest' tut arxiv:0810.1637. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). arxiv:0810.0649 Vospominaniya o chislennyh shemah (Reminiscences about numerical schemes) Authors: Sergei K. Godunov Comments: 27 pages Vsem chitat'! Godunov vspominaet o sozdanii godunovskih chislennyh shem, nazvannyh v ego chest'. Ochen' interesno! Obsudit' v ZhZh-soobshestve ru_astroph. Obsudit' na Astroforume v Nauchnoi panorame. arxiv:0810.0514 Kvantovoe prostranstvo-vremya: za kontinuumom Minkovskogo i Einshteina (Quantum Space-times: Beyond the Continuum of Minkowski and Einstein) Authors: Abhay Ashtekar Comments: 31 pages, 6 figures, To appear in the volume Minkowski Space-time: A Hundred Years LAter, edited by V. Petkov (Springer-Verlag, 2008) Bol'shoe dovol'no dostupnoe esse o problemah, stoyashih pered temi, kto zanimaetsya naibolee fundamental'nymi voprosami v fizike: svoistvami prostranstva-vremeni. Ideya sostoit v tom, chto hochetsya imet' teoriyu, v kotoroi geometriya ne zadavalas' by rukami, a "voznikala" dinamichesi, a takzhe, chtoby vse eto bylo sovmestimo s kvantovoi fizikoi. arxiv:0810.1426 Modelirovanie raspredeleniya citiruemosti za stoletie (Modeling a century of citation distributions) Authors: Matthew L. Wallace et al. Comments: 20 pages, 5 figues Na ochen' bol'shom materiale - citiruemost' za 1900-2006 gody: 25 millionov statei, 600 millionov ssylok - avtory analiziruyut evolyuciyu raspredelenii razlichnyh bibliometricheskih parametrov. V chastnosti, avtory vydelyayut izmenenie politiki citirovaniya, proizoshedshee v 60-e gg., a takzhe obsuzhdayut, chto schitat' "klassicheskoi stat'ei". arxiv:0810.1601 Akrobatika zhidkosti - video (Luquid acrobatics) Authors: James C. Bird, Howard A. Stone Comments: 3 pages V razdele physics poyavlyaetsya seriya statei raznyh avtorov, v kotoryh opisyvayutsya udivitel'nye primery povedeniya zhidkostei i gazov, i prikladyvayutsya video. Ih stoit smotret'!!!! Drugie stat'i s video (nepolnyi spisok): arxiv:0810.1725, arxiv:0810.1549, arxiv:0810.1551, arxiv:0810.1587, arxiv:0810.1702. Prosto otkroite PDF i kliknite v ssylku s video. Vse eto 1-2-stranichnye zametki, v kotoryh vy naidete ssylki na video. Obsudit' v ZhZh-soobshestve ru_astroph. Obsudit' na Astroforume v Nauchnoi panorame. Vernut'sya k nachalu stranicy

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