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The R.A.P.Project "Prosto o slozhnom" "Astro-ph za 2006 g." Nemnogo statistiki Predydushii vypusk (N191) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 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/0808.0367 Fizicheskie usloviya v potencial'nyh istochnikah kosmicheskih luchei. I Novyi variant diagrammy Hillasa i ogranicheniya za schet radiacionnyh poter' arxiv/0808.0932 Pervye izobrazheniya zatmennoi vzaimodeistvuyushei dvoinoi beta Liry arxiv/0808.1594 Ochen' vysokotochnaya VLBI-astrometriya dlya pul'sara PSR J0437-4715 i prilozheniya k teoriyam gravitacii arxiv/0808.1849 Obshii metod ocenki parametrov zvezd po dannym fotometrii Otdel'nye stat'i GRAVITY: dostat' gorizont sobytii Sgr A* Uglovoi moment galaktik i ego korrelyacii GRIPS - Issledovatel' gamma vspleskov metodami polyarimetrii i spektroskopii Fizicheskie usloviya v potencial'nyh istochnikah kosmicheskih luchei. I Novyi variant diagrammy Hillasa i ogranicheniya za schet radiacionnyh poter' Voprosy v astrofizike vysokih energii Massy chernyh dyr vo vselennoi Issledovanie novoi populyacii kompaktnyh ob'ektov: rentgenovskie i IK nablyudeniya galakticheskogo centra Pervye izobrazheniya zatmennoi vzaimodeistvuyushei dvoinoi beta Liry Kogda skopleniya stalkivayutsya: ogranicheniya na antiveshestvo na bol'shih masshtabah Ogranicheniya na uravnenie sostoyaniya yadernoi materii pri vysokoi plotnosti po nablyudeniyam neitronnyh zvezd Ochen' vysokotochnaya VLBI-astrometriya dlya pul'sara PSR J0437-4715 i prilozheniya k teoriyam gravitacii Test po kolichestvennomu sravneniyu astrofizicheskih gidrodinamicheskih kodov Obshii metod ocenki parametrov zvezd po dannym fotometrii Eksperiment NuMoon: pervye rezul'taty Iz razdela physics Lekcii po teorii veroyatnostei, entropii i statisticheskoi fizike Kommentarii na stat'yu "yavlyaetsya li vera vragom nauki?" Formula Einshteina: E_0 = mc^2. Ne smeetsya li Gospod' Bog? Vvodnye lekcii po teorii strun Neitrinnaya astrofizika 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 N192 astro-ph za 01 - 14 avgusta 2008 goda: izbrannye stat'i Referaty otdel'nyh statei arxiv:0808.0063 GRAVITY: dostat' gorizont sobytii Sgr A* (GRAVITY: getting to the event horizon of Sgr A*) Authors: F. Eisenhauer et al. Comments: 13 pages, 11 figures, to appear in the conference proceedings of SPIE Astronomical Instrumentation, 23-28 June 2008, Marseille, France Dlya VLT razrabatyvaetsya special'nyi pribor, kotoryi pomozhet nablyudat' dvizhenie zvezd i gaza v neposredstvennoi blizosti ot gorizonta sobytii v istochnike Sgr A* - sverhmassivnoi chernoi dyre v centre nashei Galaktiki. Dlya realizacii potrebuetsya ne tol'ko sozdat' novye instrumenty, no i zadeistvovat' vsyu mosh' interferometricheskoi sistemy VLT. Razumeetsya, nikto ne delaet pribor "pod odin ob'ekt", i v stat'e avtory rassmatrivayut i drugie vozmozhnye oblasti prilozhenii. Pribor nachnet rabotat' v 2013 godu (seichas ego sozdanie polnost'yu odobreno). obzor arxiv:0808.0203 Uglovoi moment galaktik i ego korrelyacii (Review: galactic angular momenta and angular momentum correlations in the cosmological large-scale structure) Authors: Bjoern Malte Schaefer Comments: 22 pages, 7 figures, invited review for IJMPD Galaktiki priobretayut uglovoi moment za schet prilivnyh vozdeistvii v processe formirovaniya krupnomasshtabnoi struktury. Razumeetsya, parametry vrasheniya okazyvayut skorrelirovany s drugimi parametrami galaktik i okruzhayushih ih struktur. Vse eto tak ili inache mozhet proyavlyat'sya v nablyudeniyah (v chastnosti, v dannyh po linzirovaniyu). Vsemu etomu i posvyashen dannyi obzor. Napisano otnyud' ne prosto. arxiv:0808.0267 GRIPS - Issledovatel' gamma vspleskov metodami polyarimetrii i spektroskopii (GRIPS - Gamma-Ray Burst Investigation via Polarimetry and Spectroscopy) Authors: J. Greiner, et al Comments: Excerpt of a proposal submitted in response to the ESA Cosmic Vision Call in June 2007, but not selected for further consideration; 11 pages, 6 Figs. only scientific sections Avtory predlagayut proekt novogo sputnika dlya izucheniya gamma-vspleskov. Osnovnaya novizna sostoit v vozmozhnosti spektroskopicheskih nablyudenii v shirokom diapazone (200 keV - 50 MeV) i v poluchenii dannyh o polyarizacii. Razumeetsya, takoi sputnik budet polezen ne tol'ko dlya issledovaniya gamma-vspleskov. Polnaya versiya prokta opublikovana v Experimental Astronomy. arxiv:0808.0367 Fizicheskie usloviya v potencial'nyh istochnikah kosmicheskih luchei. I Novyi variant diagrammy Hillasa i ogranicheniya za schet radiacionnyh poter' (Physical conditions in potential sources of ultra-high-energy cosmic rays. I. Updated Hillas plot and radiation-loss constraints) Authors: Ksenia Ptitsyna, Sergey Troitsky Comments: 24 pages, 12 figures Ochen' vazhno pomnit', chto v "kosmicheskih uskoritelyah" chasticy ne tol'ko uskoryayutsya, no i izluchayut. Eto obstoyatel'stvo nakladyvaet ogranicheniya na maksimal'nye vozmozhnye energii. T.e., nel'zya prosto vzyat' diagrammu Hillasa (svyazyvayushuyu razmer i magnitnoe pole v istochnike kosmicheskih luchei) i poluchit' ocenku energii. Energiya na samom dele budet nizhe. A vot naskol'ko i pochemu - mozhno prochest' v obzore. obzor arxiv:0808.0417 Voprosy v astrofizike vysokih energii (Problems in High Energy Astrophysics) Authors: Paolo Lipari Comments: 31 pages, Talk given at the workshop "Neutrino Oscillations in Venice" (april 2008) Obzor posvyashen kosmicheskim lucham (a takzhe neitrino vysokih energii), tomu, kakuyu rol' ih issledovaniya zanimayut v astrofizike, i na kakie voprosy oni mogut pomoch' naiti otvety. Sm. takzhe obzor avtora arxiv:0808.0344. miniobzor arxiv:0808.0435 Massy chernyh dyr vo vselennoi (Masses of Black Holes in the Universe) Authors: Janusz Ziolkowski Comments: 13 pages, Chin. J. Astron. Astrophys. Vol. 8 (2008), Suppl., 273-280 Obsuzhdayutsya razlichnye metody ocenki mass dlya astrofizicheskih chernyh dyr (zvezdnyh, promezhutochnyh mass i sverhmassivnyh). Kak obychno v obzorah Ciolkovskogo, est' neskol'ko poleznyh tablic. arxiv:0808.0519 Issledovanie novoi populyacii kompaktnyh ob'ektov: rentgenovskie i IK nablyudeniya galakticheskogo centra (Exploring a New Population of Compact Objects: X-ray and IR Observations of the Galactic Centre) Authors: Reba M. Bandyopadhyay et al. Comments: 4 pages, 2 figures, to appear in the Proceedings of The Second Kolkata Conference on Observational Evidence for Black Holes in the Universe'', ed. S. Charkrabarti, Kolkata, India; AIP Conf. Series Fantasticheski vyglyadit! Eto ne opticheskoe, a rentgenovskoe izobrazhenie. Oblast' centra Galaktiki - vse nebo v almazah. Chandra vidit tam ob'ekty so svetimost'yu do 1031 erg v sekundu. Razumeetsya, otozhdestvlyat' istochniki v centre Galaktiki ochen' trudno. Tak chto raboty tam eshe mnogo. P.S. Interesno, net li tam odinochnyh akkreciruyushih neitronnyh zvezd? arxiv:0808.0932 Pervye izobrazheniya zatmennoi vzaimodeistvuyushei dvoinoi beta Liry (First Resolved Images of the Eclipsing and Interacting Binary Beta Lyrae) Authors: M. Zhao et al. Comments: 13 Pages, 3 Figures; Accepted by ApJL S pomosh'yu opticheskih interferometrov vpervye udalos' v detalyah razglyadet' sistemu betu Liry, razreshiv ee na dva komponenta. Izobrazhenie polucheno s pomosh'yu sistemy CHARA Array. Vidna zvezda donor (sleva) i disk vokrug vtorogo komponenta. Vidno, chto donor slegka vytyanut, t.e. vpervye udalos' rassmotret' napryamuyu iskazhenie formy vo vremya zapolneniya polosti Rosha. Obsudit' v ZhZh-soobshestve ru_astroph. Obsudit' na Astroforume v Nauchnoi panorame. arxiv:0808.1122 Kogda skopleniya stalkivayutsya: ogranicheniya na antiveshestvo na bol'shih masshtabah (When Clusters Collide: Constraints On Antimatter On The Largest Scales) Authors: Gary Steigman Comments: 4 pages, 1 figure Koroten'kaya zametka, posvyashennaya obsuzhdeniyu togo, kak rentgenovskie i gamma- nablyudeniya stalkivayushihsya skoplenii galaktik mogut dat' ogranicheniya na dolyu antiveshestva. Esli otbrosit' ideyu o tom, chto antiveshestvo s samyh rannih momentov zhizni vselennoi sobrano v kakie-to ochen' kompaktnye ob'ekty, to ogranicheniya na ego soderzhanie beretsya iz nablyudenii kosmicheskih luchei (nuzhno imenno zahvatyvat' chasticy, dlya etogo nuzhny sputniki tipa PAMELA) i nablyudenii gamma-luchei. Poslednie mogli by rozhdat'sya pri annigilyacii. Po gamma-izlucheniyu est' predely na dolyu antiveshestva na samyh raznyh masshtabah. Shteigman obsuzhdaet predely na masshtabah poryadka 10 Mpk - t.e. masshtabah skoplenii. Esli dva skopleniya stalkivayutsya (kak izvestnoe Bullet cluster), to antiveshestvo dolzhno annigilirovat' s veshestvom. Sootvetstvenno, verhnii predel na gamma-izlucheniya dast ogranichenie na antiveshestvo. Avtor rassmatrivaet konkretnye primery i obsuzhdaet, kak v budushem mozhno eshe uluchshit' takie predely. miniobzor arxiv:0808.1279 Ogranicheniya na uravnenie sostoyaniya yadernoi materii pri vysokoi plotnosti po nablyudeniyam neitronnyh zvezd (Constraints on the High-Density Nuclear Equation of State from Neutron Star Observables) Authors: David Blaschke, Thomas Klaehn, Fridolin Weber Comments: 16 pages, 11 figures, Contribution to Proceedings of the 3rd International Workshop on Astronomy and Relativistic Astrophysics (IWARA), 3-6 October 2007, Joao Pessoa, Brazil Ocherednoi obzor po astrofizicheskim ogranicheniyam na uravnenie sostoyaniya pri vysokoi plotnosti. Bystrovrashayushiesya i massivnye neitronnye zvezdy, kompaktnye ob'ekty s izmerennym radiusom, ochen' goryachie ili holodnye ... vse oni mogut dat' informaciyu o tom, kak vedet sebya veshestvo v ih nedrah pri plotnosti, v neskol'ko raz prevoshodyashei yadernuyu. arxiv:0808.1594 Ochen' vysokotochnaya VLBI-astrometriya dlya pul'sara PSR J0437-4715 i prilozheniya k teoriyam gravitacii (Extremely high precision VLBI astrometry of PSR J0437-4715 and implications for theories of gravity) Authors: A. T. Deller, J.P.W. Verbiest, S.J. Tingay, M. Bailes Comments: 11 pages, 1 Figure, submitted to ApJL Avtory rasskazyvayut o tochnom opredelenii (tochnost' okolo 1%) parallaksa do samogo blizkogo (156 pk) millisekundnogo dvoinogo pul'sara i o tom, chto iz etogo mozhno izvlech'. A izvlech' mozhno nemalo, t.k. dlya takih ob'ektov est' nezavisimye metody opredeleniya rasstoyaniya. Eti nezavisimye metody osnovany na nekotoryh predpolozheniyah, kotorye mozhno proveryat', ispol'zuya tochnyi trigonometricheskii parallaks. Sredi etih prepolozhenii vo-pervyh nado otmetit' postoyanstvo postoyannoi tyagoteniya (n'yutonovoi). I avtory privodyat samyi zhestkii predel na ee proizvodnuyu. Vo-vtoryh, eto neizvestnye massivnye planety na zadvorkah solnechnoi sistemy. I v tret'ih, gravitacionno-volnovoi shum. Podrobnee ob izmerenii parallaksov pul'sarov s pomosh'yu VLBI sm. arxiv:0808.1598. V chastnosti, tam rasskazyvaetsya ob izmereniyah s submilliarksekundnoi tochnost'yu (tochno opredeleno rasstoyanie do pul'sara na ~2.5 kpc ot nas). arxiv:0808.1844 Test po kolichestvennomu sravneniyu astrofizicheskih gidrodinamicheskih kodov (A test suite for quantitative comparison of hydrodynamics codes in astrophysics) Authors: Elizabeth J. Tasker et al. Comments: 18 pages, 15 figures. Accepted for publication in MNRAS Avtory sravnivayut chetyre koda: Enzo, Flash, Gadget i Hydra. Dlya etogo oni reshayut s ih pomosh'yu nekotorye zadachi s izvestnymi resheniyami. Rech' ne idet o vyyavlenii "chempiona", prosto vazhno ponyat' kakie kody luchshe podhodyat dlya raznyh klassov zadach. arxiv:0808.1849 Obshii metod ocenki parametrov zvezd po dannym fotometrii (A general method of estimating stellar astrophysical parameters from photometry) Authors: A.N. Belikov, S. Roser Comments: 14 pages, 20 figures, accepted by A&A Seichas est' mnogo horoshih obzorov neba s fotometricheskimi dannymi v shirokih polosah. Iz etih dannyh mozhno bylo by poprobovat' ocenit' parametery zvezd (effektivnye temperatury, metallichnost', silu tyazhesti), no ne vse tak prosto - est' mezhzvezdnoe veshestvo, kotoroe privodit k pokrasneniyu. Avtory predlagayut metod, kotoryi, po ih utverzhdeniyu, horosho spravlyaetsya s etoi neprostoi i aktual'noi zadachei. Sm. takzhe arxiv:0808.1848 ob absolyutnoi kalibrovke zvezd glavnoi posledovatel'nosti tonkogo diska po nablyudeniyam v optike i blizhnem IK. arxiv:0808.1878 Eksperiment NuMoon: pervye rezul'taty (The NuMoon experiment: first results) Authors: S. Buitink et al. Comments: 8 pages, 8 figures, proceedings of XXth rencontres de Blois, 2008 Effekt Askaryana pozvolyaet registrirovat' vysokoenergichnye neitrino po radioizlucheniyu, kotoroe voznikaet pri dvizhenii chastic v srede. Na Zemle chashe obsuzhdayutsya ustanovki (i nekotorye uzhe rabotayut), gde "rabochim telom" sluzhit led (Antarkticheskii, grenlandskii). No Dagkesamanskii i Zheleznyh eshe v 1989 godu predlozhili nablyudat' s pomosh'yu radioteleskopov Lunu, i nablyudeniya byli provedeny. Pravda, udalos' poluchit' lish' verhnie predely. Rech' idet o registracii ochen' korotkih slabyh radiosignalov. V proekte NuMoon ispol'zuetsya bol'shoi teleskop v Vesterborke. Izyuminka v ispol'zovanii bolee nizkih chastot chem v predydushih popytkah. Nablyudeniya uzhe nachalis'. Rezul'taty poka pozvolyayut lish' postavit' verhnie predely, no eto uzhe ochen' horoshie predely. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). arxiv:0808.0012 Lekcii po teorii veroyatnostei, entropii i statisticheskoi fizike (Lectures on Probability, Entropy, and Statistical Physics) Authors: Ariel Caticha Comments: 170 pages. Invited lectures at MaxEnt 2008, the 28th International Workshop on Bayesian Inference and Maximum Entropy Methods in Science and Engineering (July 8-13, 2008, Boraceia Beach, Sao Paulo, Brazil) 170 stranic lekcii.... Mnogo teorem s dokazatel'stvami. No s drugoi storony mnogo i primerov primenenii raznyh statisticheskih metodov. arxiv:0808.0128 Kommentarii na stat'yu "yavlyaetsya li vera vragom nauki?" (Comment on "Is Faith the Enemy of Science?") Authors: Lawrence M. Krauss Comments: to appear in "Physics in Canada", response to 0807.3670 Ya pisal o zametke arxiv:0808.3670. Ona byla naveyana vystupleniem Kraussa. Teper' Krauss pis'menno otvechaet na nee. Krauss pishet, chto vcelom on soglasen s avtorom arxiv:0807.3670, a razlichiya u nih v osnovnom terminologicheskie. arxiv:0808.0437 Formula Einshteina: E_0 = mc^2. Ne smeetsya li Gospod' Bog? (The Einstein formula: E_0=mc^2 "Isn't the Lord laughing?") Authors: L.B. Okun Comments: 20 pages, Published: Uspekhi Fiz. Nauk 178 (5) (2008) 541-555 (in Russian); Physics--Uspekhi 51 (5) (2008) 513-527 (in English) Obsuzhdaetsya izvestnaya formula E=mc^2, rol' indeksa "0" u energii i koe-chto eshe. Na russkom stat'yu mozhno skachat' tut. Pol'zuyas' sluchaem, eshe neskol'ko interesnyh ssylok na nedavnie raboty v UFN: Priroda akkrecionnyh diskov tesnyh dvoinyh zvezd: neustoichivost' sverhotrazheniya i razvitaya turbulentnost' A.M. Fridman, D.V. Bisikalo Teoriya otnositel'nosti i teorema Pifagora Lev Landau i problema singulyarnostei v kosmologii Dinamicheskaya model' krotovoi nory i model' Mul'tivselennoi Obsudit' v ZhZh-soobshestve ru_astroph. Obsudit' na Astroforume v Nauchnoi panorame. arxiv:0808.0663 Vvodnye lekcii po teorii strun (Introductory Lectures on String Theory) Authors: A.A. Tseytlin Comments: 38 p., 21 fig Nazvanie govorit samo za sebya, no uchtite, chto tekst sostoit prakticheski tol'ko iz odnih formul. arxiv:0808.0735 Neitrinnaya astrofizika (Neutrino Astrophysics) Authors: W. C. Haxton Comments: 37 pages, 15 figures; presentation at an introductory level Horoshii obzor po vsem oblastyam neitrinnoi astrofiziki: solnechnye neitrino, atmosfernye, ot sverhnovyh, rol' neitrino v nukleosinteze, processy v zvezdah, neitrino vysokih energii. Razumeetsya, perechisleny osnovnye ustanovki i plany v etoi oblasti. Vse zhostatochno polno i ponyatno. Rekomenduyu. 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 >>

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