The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N74) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 24.03.2004. Obzor neba po dannym SIGMA 20.03.2004. Interesnyi dvoinoi radiopul'sar Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0404213 Obzor po poisku pul'sarov v sharovyh skopleniyah na volne 20 sm hep-ph/0404061 Solnechnye modeli i oscillyacii solnechnyh neitrino astro-ph/0404277 Istoriya astrofiziki v Antarktide Otdel'nye stat'i Ogranicheniya na rost sverhmassivnyh chernyh dyr na bol'shih krasnyh smesheniyah Uvideli li atmosfernye cherenkovskie teleskopy temnuyu materiyu? Krivye bleska sverhnovyh: argument v pol'zu novogo modulya rasstoyanii Obzor po poisku pul'sarov v sharovyh skopleniyah na volne 20 sm Rastekanie akkreciruemogo veshestva po belym karlikam Otkrytie v optike treh rasseyannyh skoplenii v Galaktike Final'nye stadii formirovaniya planet Solnechnye modeli i oscillyacii solnechnyh neitrino Dva novyh "ochen' goryachih Yupitera" sredi kandidatov OGLE Andromeda IX: novyi karlikovyi sputnik M31 Para chasov v dvoinom pul'sare PSR J0737-3039: ego proishozhdenie i evolyuciya Istoriya astrofiziki v Antarktide Chernye dyry i golograficheskii princip "Razreshennaya priroda" sobytiya mikrolinzirovaniya v BMO LMC-5 Molekulyarnaya vodorodnaya atmosfera neitronnoi zvezdy Astrofizika pul'sarov: fenomen glitchei Iz razdela physics Opisanie kilotonnogo zhidkogo scincillyatora eksperimenta KamLAND Fizika v fil'mah 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" Zamechatel'nyi sait Astronomiya i teleskopostroenie

Obzory preprintov astro-ph Vypusk N75 astro-ph za 12 - 19 aprelya 2004 goda: izbrannye stat'i Referaty otdel'nyh statei astro-ph/0404196 Ogranicheniya na rost sverhmassivnyh chernyh dyr na bol'shih krasnyh smesheniyah (Constraints from Gravitational Recoil on the Growth of Supermassive Black Holes at High Redshift) Authors: Zoltan Haiman Comments: submitted to ApJ Letters, 5 emulateapj pages with 1 figure Pri sliyanii dvuh chernyh dyr poluchivshayasya chernaya dyra poluchaet dopolnitel'nuyu skorost' (sobstvenno, dlya chernyh dyr effekt prosto maksimalen, sushestvuet zhe on i dlya drugih slivayushihsya ob'ektov - my pisali ob etom nekotoroe vremya nazad). V poslednie neskol'ko mesyacev effekt stal aktivno rassmatrivat'sya v svyazi s rostom massy chernyh dyr na bol'shih krasnyh smesheniyah. Napomnim, chto uzhe na krasnyh smesheniyah bol'shih 6 nablyudayutsya kvazary, t.e. tam uzhe sushestvovali sverhmassivnye chernye dyry, vyrosshie iz "zarodyshevyh" ob'ektov. Est' dve osnovnye prichiny rosta: sliyaniya i akkreciya. V etoi stat'e avtor rassmatrivaet kakie ogranicheniya nalagaet "gravitacionnaya otdacha" (Gravitational Recoil) na rost sverhmassivnyh chernyh dyr. Osnovnym vyvodom raboty yavlyaetsya sleduyushee: na nekotorom etape temp akkrecii dolzhen sushestvenno prevoshodit' eddingtonovskii, ili zhe dlya rassmotrennogo kvazara (s massoi 4.6 milliadov mass Solnca na krasnom smeshenii 6.43) skorosti, poluchennye pri "gravitacionnoi otdache" vsegda byli men'she 64 km/s, chto maloveroyatno. astro-ph/0404205 Uvideli li atmosfernye cherenkovskie teleskopy temnuyu materiyu? (Have Atmospheric Cerenkov Telescopes Observed Dark Matter?) Authors: Dan Hooper et al. Comments: 19 pages, 7 figures Dva atmosfernyh cherenkovskih teleskopa (VERITAS i CANGAROO) nezavisimo zaregistrirovali TeVnoe gamma-izluchenie v napravlenii centra nashei Galaktiki. V ramkah sovremennoi ponimaniya fizicheskih processov, protekayushih v astronomicheskih ob'ektah, ob'yasnit' eto izluchenie ne udaetsya (Zam.: po mneniyu avtorov). Avtory stat'i schitayut, chto izluchenie obrazuetsya pri raspade ili annigilyacii massivnyh chastic nebarionnoi temnoi materii. obzor astro-ph/0404207 Krivye bleska sverhnovyh: argument v pol'zu novogo modulya rasstoyanii (Supernovae Light Curves: An Argument for a New Distance Modulus) Authors: Jerry W. Jensen Comments: 34 Pages, 21 figures Avtor schitaet, chto kogerentnoe Ramanovskoe rasseyanie nekogerentnogo sveta v mezhgalakticheskoi srede okazyvaet vliyanie na ocenku rasstoyanii do dalekih ob'ektov (i eto vliyanie uzhe mozhno obnaruzhit'). V pol'zu svoei gipotezy on privodit analiz krivyh bleska dalekih sverhnovyh, v kotoryh nahodit sootvetstvuyushuyu sistematiku. Po povodu dannoi gipotezy eshe, navernoe, budut sporit' specialisty, a v rezul'tate poluchilsya interesny obzor, v tom chisle i prosto po sverhnovym. astro-ph/0404213 Obzor po poisku pul'sarov v sharovyh skopleniyah na volne 20 sm (A 20-cm Survey for Pulsars in Globular Clusters using the GBT and Arecibo) Authors: Scott Ransom et al. Comments: 7 pages, 2 figures, to be published in the proceedings of the "Binary Pulsars" Conference, Aspen, January 2004 Seichas izvestno primerno 80 pul'sarov v 23 sharovyh skopleniyah. Pri etom bolee poloviny iz nih otkryty za poslednie 4 goda. Eto svyazano s aktivnymi poiskovymi programmami v Arecibo i Green Bank. V etoi korotkoi zametke avtory rasskazyvayut ob otkrytii 13 millisekundnyh pul'sarov (eshe est' kandidaty). Iz nih 12 - dvoinye (iz nih tri - zatmennye). Poka obrabotano 80 procentov dannyh, obrabotka prodolzhaetsya. Rasskaz o kazhdom novom pul'sare soprovozhdaetsya kratkoi informaciei po materinskomu sharovomu skopleniyu. astro-ph/0404214 Rastekanie akkreciruemogo veshestva po belym karlikam (Spreading of Accreted Material on White Dwarfs) Authors: Anthony L. Piro (UCSB), Lars Bildsten (KITP, UCSB) Comments: 14 pages, 3 pages Esli u belogo karlika slaboe magnitnoe pole, a akkrecionnyi disk tonkii (tolshina vnutrennego kraya v neskol'ko raz men'she razmera zvezdy), to disk dohodit do poverhnosti zvezdy v oblasti ekvatora vrasheniya. Skorost' veshestva diska tam vyshe, chem skorost' poverhnosti zvezdy. Veshestvo tormozitsya i rastekaetsya po poverhnosti, obrazuya tak nazyvaemyi "pogranichnyi sloi", v kotorom vydelyaetsya prakticheski stol'ko zhe energii, kak vo vsem ostal'nom akkrecionnom diske v celom. Veshestvo rastekaetsya po poverhnosti zvezdy, priblizhayas' k polyusam, ego skorost' i temperatura postepenno sravnivayutsya s parametrami zvezdy. Etot process vyglyadit takzhe, kak mnogokratno ranee opisannoe obrazovanie pogranichnogo sloya u akkreciruyushei neitronnoi zvezdy so slabym magnitnym polem. Dlya belyh karlikov chislennoe modelirovanie (provedennoe v stat'e) delaetsya, kazhetsya, vpervye. astro-ph/0404223 Otkrytie v optike treh rasseyannyh skoplenii v Galaktike (Discovery of three optical open clusters in the Galaxy) Authors: E.Bica et al. Comments: 12 pages, 9 figures Po opticheskim nablyudeniyam otkryto tri novyh rasseyannyh skopleniya v nashei Galaktike: dva v sozvezdii Shita (pervoe s koordinatami l=18.44o i b=-0.42o, vtoroe - l=19.60o i b=-1.02o) i odno v Bol'shoi Medvedice (l=235.61o i b=-4.10o). Vozrasta etih skoplenii ocenivayutsya v 25, 500 i 32-100 mln.let, a rasstoyaniya do nih 1.6, 2.2 i 3.9 kpk, sootvetstvenno. Fotografii treh otkrytyh rasseyannyh skoplenii astro-ph/0404240 Final'nye stadii formirovaniya planet (Final Stages of Planet Formation) Authors: Peter Goldreich, Yoram Lithwick, Re'em Sari Comments: 10 pages, 0 figures Avtory pytayutsya otvetit' na tri voprosa pro Solnechnuyu sistemu: Chto opredelilo chislo planet v nei? Pochemu ih orbity pochti krugovye i lezhat v odnoi ploskosti? Kak dolgo formirovalas' eta struktura? Chitat' "otvety" avtorov ochen' interesno, a vot naskol'ko oni pravil'ny pokazhet vremya. obzor hep-ph/0404061 Solnechnye modeli i oscillyacii solnechnyh neitrino (Solar models and solar neutrino oscillations) Authors: John N. Bahcall, Carlos Pe\~na-Garay Comments: 17 pages, Submitted to the Neutrino Focus Issue of New Journal of Physics Obzor sovremennogo sostoyaniya del v izuchenii solnechnyh neitrino. astro-ph/0404264 Dva novyh "ochen' goryachih Yupitera" sredi kandidatov OGLE (Two new "very hot Jupiters" among the OGLE transiting candidates) Authors: F.Bouchy et al. Comments: 4 pages, 4 figures, submitted to A&A U dvuh zvezd, zapodozrennyh v obladanii planetami v eksperimente OGLE (po prohozhdeniyu planety po disku zvezdy), ih nalichie bylo podtverzhdeno izmereniem luchevyh skorostei. Vot rezul'taty: U OGLE-TR-113 naidena planeta s massoi 1.35+/-0.22 MJup i periodom 1.43 dnya, u OGLE-TR-132 - s massoi 1.01+/-0.31 MJup i periodom 1.69 dnya. astro-ph/0404268 Andromeda IX: novyi karlikovyi sputnik M31 (Andromeda IX: A New Dwarf Spheroidal Satellite of M31) Authors: D.B.Zucker et al. Comments: 5 pages, 4 figures Otkryt novyi karlikovyi sferoidal'nyi sputnik galaktiki M31: Andromeda IX. Sputnik otkryt na osnove fotometrii razreshennyh zvezd v obzore SDSS. Andromeda IX obladaet samoi nizkoi poverhnostnoi yarkost'yu iz vseh izvestnyh galaktik: μV~26.8 zv.vel./kv.sek. Sleva ranee otkrytyi sputnik M31 Andromeda V, sprava - Andromeda IX. astro-ph/0404274 Para chasov v dvoinom pul'sare PSR J0737-3039: ego proishozhdenie i evolyuciya (Two clocks in the PSR J0737-3039 binary system and their implications for the system's origin and evolution) Authors: D.R.Lorimer et al. Comments: 4 pages, 1 figure Ochen' korotkaya (4 stranicy) stat'ya pro to: chto mozhno uznat', nablyudaya samyi populyarnyi segodnya dvoinoi pul'sar s dvumya nablyudaemymi komponentami. A takzhe iz chego i kak on obrazovalsya. obzor astro-ph/0404277 Istoriya astrofiziki v Antarktide (The History of Astrophysics in Antarctica) Authors: Balthasar T. Indermuehle et al. Comments: 29 pages, 10 figures, 1 table Submitted to PASA in April 2004 Bol'shoi soderzhatel'nyi obzor po astrofizicheskim issledovaniya, provodivshimsya v Antarktike v 20 veke. Antarktida - s tochki zreniya astroklimata ochen' horoshee mesto. Gory, holodno, suho, net zasvetki. Krome togo, shestoi kontinent ochen' podhodit dlya zapuska razlichnoi apparatury na ballonah. Vse eto privodit k tomu, chto nesmotrya na surovyi klimat, otsutstvie infrastruktury i t.p. v Antarktike provodilos' i provoditsya mnogo vazhnyh eksperimentov. Samye izvestnye, pozhalui, otnosyatsya k issledovaniyam neitrino i k izucheniyu reliktovogo mikrovolnovogo fona. Podrobnosti - v obzore. obzor hep-th/0404098 Chernye dyry i golograficheskii princip (Black Holes and the Holographic Principle) Authors: Larus Thorlacius Comments: 19 pages, 7 figures, invited lecture at the Gunnar Nordstrom Symposium on Theoretical Physics, Helsinki, August 27-30, 2003 Dannaya stat'ya predstavlyaet soboi obzornuyu lekciyu, posvyashennuyu golorgaficheskomu principu voobshe i ego prilozheniyam k chernyh dyram v chastnosti. O golograficheskom principe podrobno mozhno prochitat' v prekrasnom obzore hep-th/0203101. O chernyh dyrah est' mnogo statei, otmetim kak bolee prostuyu astro-ph/9801252 i bolee "prodvinutuyu" gr-qc/0304042 (otdel'no otmetim stat'yu, posvyashennuyu ispareniyu chernyh dyr: gr-qc/0010055). V vul'garnom izlozhenii Golograficheskii princip mozhno predstavit' tak: v prostranstve-vremeni mozhno opredelit' nekotoruyu granicu tak, chto entropiya vnutri etoi granicy budet opredelyat'sya ne ob'emom oblasti, a ploshad'yu poverhnosti granicy. Srazu zametim, chto t.n. prostranstvennopodobnaya granica (t.e. kogda vy prosto okruzhaete kakuyu-to oblast' ogranichevayushei poverhnost' v prostranstve) ne rabotaet. Detali - v lekciyah i obzorah. Chtoby zaintrigovat' otmetim, chto golograficheskii princip schitaetsya vozmozhnym vazhnym shagom na puti sozdaniya teorii kvantovoi gravitacii. astro-ph/0404285 "Razreshennaya priroda" sobytiya mikrolinzirovaniya v BMO LMC-5 (Resolving the Nature of the LMC Microlensing Event LMC-5) Authors: A.J.Drake et al. Comments: 4 pages, 1 figure, Accepted ApJL C Habblovskogo teleskopa udalos' obnaruzhit' linzu, otvetstvennuyu za sobytie LMC-5 v Bol'shom Magellanovom Oblake. Eto obychnaya zvezda, karlik spektral'nogo klassa M, na rasstoyanii 578(+65/-53) pk ot nas (opredeleno po trigonometricheskomu parallaksu) i s sobstvennym dvizheniem μ=21.39+/-0.04 mas/god. Takim obrazom podtverzhdenii vliyanie parallaksa na formu privoi bleska etogo sobytiya. astro-ph/0404290 Molekulyarnaya vodorodnaya atmosfera neitronnoi zvezdy (A hydrogenic molecular atmosphere of a neutron star) Authors: A.V. Turbiner and J.C. Lopez Vieyra Comments: 8 pages, 1 figure Molekuly v atmosferah neitronnyh zvezd? Okazyvaetsya eto vpolne vozmozhno. Po krainei mere dlya odinochnoi neitronnoi zvezdy 1E1207.4-5209 nailuchshee soglasie s nablyudeniyami daet model' atmosfery, v kotoroi osnovnym komponentom yavlyaetsya ekzoticheskii molekulyarnyi ion H32+ i magnitnym polem 2-6x1014 Gs. Reakcii fotoionizacii H32+ -> e + 3p i fotodissociacii H32+ -> H + 2p pozvolyayut ob'yasnit' absorbcionnye detali na energiyah 0.7 i 1.4 keV. Krome togo dannaya model' predskazyvaet osobennost' na energii 80-150 eV iz-za drugoi reakcii fotodissociacii H32+ -> H2+ + p. miniobzor astro-ph/0404324 Astrofizika pul'sarov: fenomen glitchei (Pulsar astrophysics: the glitch phenomenon) Authors: J.E. Horvath Comments: 8 pp. 3 fig., Ochen' korotkii obzor pro sboi vrasheniya pul'sarov i ih mehanizmy. Naibol'shii upor avtor delaet upor na pul'sar PSR B1828-11 v kotorom, vozmozhno, nablyudaetsya svobodnaya precessiya. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0404071 Opisanie kilotonnogo zhidkogo scincillyatora eksperimenta KamLAND (An Overview of the KamLAND 1-kiloton Liquid Scintillator) Authors: F. Suekane et al. Comments: 12 pages 11 figures, 1 table. Proceedings for "KEK-RCNP International School and mini-Workshop for Scintillating Crystals and their Applications in Particle and Nuclear Physics". (Nov., 17-18, 2003, KEK, Japan.) Dano podrobnoe opisanie ochen' vysokokachestvennogo zhidkogo scincillyatora, ispol'zuemogo v neitrinnom eksperimente KamLAND. Avtory polagayut, chto odnoi iz vazhneishih sostavlyayushih uspeha etogo proekta po izucheniyu neitrinnyh oscillyacii byla vysokaya chistota (v smysle fonovoi radioaktivnosti) scincillyatora. physics/0404064 Fizika v fil'mah (Physics in Films: A New Approach to Teaching Science) Authors: Costas J. Efthimiou, Ralph Llewellyn Comments:Based on a talk by R.L. in EISTA 2003; contains 8 figures in eps format; to appear in the Journal of Systemics, Cybernetics and Informatics Pomnitsya v sovetskoe vremya bylo dovol'no mnogo uchebnyh fil'mov po fizike, himii, biologii. Fil'my - eto deistvitel'no zdorovo. Nastoyashie eksperimenty, razumeetsya, eshe luchshe. No fil'm tochno luchshe komp'yuternoi simulyacii. Odnako zdes' avtory ispol'zuyut drugoi podhod. Oni berut ne special'nye uchebnye, a prosto populyarnye fil'my, i analiziruyut otdel'nye sceny s tochki zreniya fiziki. Trudno skazat' naskol'ko eto effektivno... Vernut'sya k nachalu stranicy

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