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The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N70) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 29.02.2004. Karta neba v gamma-luchah po dannym BATSE Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0402512 Otkrytiya sverhnovyh tipa Ia na z>1 s pomosh'yu teleskopa Habbla astro-ph/0402587 Karta neba v gamma-luchah po dannym BATSE Otdel'nye stat'i Otkrytie vidimyh plashmya analogov cepnyh galaktik Kosmicheskie luchi samyh vysokih energii Magnitnye kosmicheskie stenki Nablyudeniya treh kandidatov v prilivnoe razrushenie zvezd na sputnike Chandra Otkrytiya sverhnovyh tipa Ia na z>1 s pomosh'yu teleskopa Habbla Rentgenovskoe izluchenie ot dvoinogo pul'sara J0737-3039 Atlas yarkih vzaimodeistvuyushih galaktik IRAS Issledovanie processov akkrecii na chernye dyry: pyat'desyat let raboty Karta neba v gamma-luchah po dannym BATSE Massovoe linzirovanie na skoplenii Abell 2218: ogranicheniya na geometriyu Vselennoi Statisticheskie svoistva ekzoplanet: svoistva planet i kratnost' zvezd Iz razdela physics Tehnicheskoe opisanie i rabota detektora NEMO3 Novye predely na izmenenie postoyannoi tonkoi struktury so vremenem v nashe vremya 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" Sozdavaemyi katalog on-lainovoi nauchnoi literatury

Obzory preprintov astro-ph Vypusk N71 astro-ph za 23 - 29 fevralya 2004 goda: izbrannye stat'i Referaty otdel'nyh statei astro-ph/0402477 Otkrytie vidimyh plashmya analogov cepnyh galaktik (Discovery of Face-On Counterparts of Chain Galaxies in the Tadpole ACS Field) Authors: Debra Meloy Elmegreen et al. Comments: 6 pages, 4 figures, ApJ Letters in press Vse videli mnogochislennye fotografii spiral'nyh galaktik. Prakticheski vse znayut, chto spirali - eto ne mesta "skopleniya" zvezd. My vidim eti obrazovaniya ne potomu chto v nih zvezd mnogo, a mezhdu spiralyami malo, a potomu chto spirali vklyuchayut v sebya mnogo yarkih massivnyh zvezd. V epohu formirovaniya galaktik aktivnoe zvezdoobrazovanie mozhet idti ne v krasivyh uporyadochennyh spiralyah, a kuda kak bolee haotichno. V takom sluchae my budem nablyudat' dovol'no strannye struktury, "procherchennye" oblastyami burnogo zvezdoobrazovaniya. Izvestny t.n. cepnye galaktiki (chain galaxies). Eto obrazovaniya, nablyudaemye kak cepochka sgushenii (na illyustracii - sleva). V etoi rabote avtory izuchili ryad izobrazhenii cepnyh galaktik i menee vytyanutyh sgushenii (na illyustracii v centre i sprava). Oni prishli k vyvodu, chto cepnye galaktiki - eto diskovye galaktiki bez spiral'noi struktury, no s ryadom oblastei zvezdoobrazovaniya, vidimye s rebra. Esli my vidim takuyu galaktiku ne s rebra, a plashmya, to nablyudaetsya prosto sgustok otdel'nyh "pyaten". obzor astro-ph/0402487 Kosmicheskie luchi samyh vysokih energii (The highest-energy cosmic rays) Authors: James W. Cronin Comments: 43 pages, 38 figures Pervuyu chast' obzora sostavlyaet pedagogicheskaya diskussiya o rasprostranenii pervichnyh kosmicheskih luchei v mezhzvezdnoi srede i atmosfere Zemli. V ostal'nom obzor dostatochno tipichen: obsuzhdayutsya detali dvuh naibolee krupnyh eksperimentov (AGASA i HiRes) i nekotorye rashozhdeniya v rezul'tatah etih eksperimentov v oblasti energii >1019 eV. astro-ph/0402491 Magnitnye kosmicheskie stenki (Magnetized cosmic walls) Authors: G. Siemieniec-Ozieblo and A. Woszczyna Comments: 7 pages, 3 figures included; A&A accepted V etoi stat'e rech' idet ne o domennyh stenkah, a ob odnomernyh vozmusheniyah plotnosti ("blinah Zel'dovicha"), kotorye voznikayut pri nelineinom narastanii nachal'nyh vozmushenii plotnosti. Esli v eto nachal'noe veshestvo bylo vmorozheno magnitnoe pole, to pole usilivaetsya iz-za szhatiya veshestva i voznikayut "magnitnye kosmicheskie stenki", o kotoryh idet zdes' rech'. astro-ph/0402497 Nablyudeniya treh kandidatov v prilivnoe razrushenie zvezd na sputnike Chandra (Follow-Up Chandra Observations of Three Candidate Tidal Disruption Events) Authors: J.P. Halpern, S. Gezari, S. Komossa Comments: 17 pages, 4 figures, to appear in ApJ April 1 2004 Nedavno proshla novost' o nablyudenii posledstvii prilivnogo razrusheniya zvezdy sverhmassivnoi chernoi dyroi. Iznachal'no rentgenovskaya vspyshka nablyudalas' neskol'ko let nazad na sputnike ROSAT, a seichas, nablyudaya tot zhe istochnik na sputnikah Chandra i HMM-N'yuton, astronomy zaregistrirovali sil'no padenie bleska. Eto interpretiruetsya kak pogloshenie veshestva chernoi dyroi. Krome istochnika, popavshego na vse novostnye lenty, est' i drugie kandidaty. O nih i rasskazano v etoi stat'e. Dlya vseh etih istochnikov nablyudalas' vspyshka i posleduyushee padenie bleska po opredelennomu zakonu, kotoryi nahoditsya v sootvetstvii s modelyami. astro-ph/0402512 Otkrytiya sverhnovyh tipa Ia na z>1 s pomosh'yu teleskopa Habbla (Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution) Authors: Adam G. Riess et al. Comments: Accepted Astrophysical Journal, to Appear June 2004 72 pages, 17 Figures Po dalekim sverhnovym pervogo tipa mozhno otslezhivat' temp rasshireniya Vselennoi. S pomosh'yu Kosmicheskogo teleskopa udalos' uvidet' eshe 16 sverhnovyh na krasnom smeshenii bol'she 1. Eto bol'shoi shag vpered. Iz semi samyh dalekih sverhnovyh tipa Ia shest' opisano v dannoi rabote. Novye rezul'taty soglasuyutsya s obsheprinyatoi ploskoi model'yu, gde 70 procentov plotnosti prihoditsya na temnuyu energiyu. Vazhno, chto udalos' pokazat', chto predlozhennye modeli s evolyuciei sverhnovyh ili s poglosheniem za schet pyli mozhno teper' otbrosit'. Krome togo, mozhno nalozhit' vazhnye ogranicheniya na parametry evolyucii samoi temnoi energii. Napomnim, chto seichas dlya dokazatel'stva sushestvovaniya temnoi energii v principe mozhno i ne privlekat' dannye po sverhnovym, dostatochno rezul'tatov po reliktovomu izlucheniyu i po krupnomasshtabnoi strukture. Eto vazhno, t.k. sushestvovali ser'eznye somneniya v tom, chto issledovaniya sverhnovyh ne imeyut kakih-libo sistematicheskih neopredelennostei. Odnako novye dannye, privedennye v etoi stat'e, pozvolyayut govorit' o tom, chto neopredelennosti maly, i sverhnovye yavlyayutsya vazhnym i tochnym instrumentom issledovaniya Vselennoi. Dannye nablyudeniya podtverzhdayut prinyatuyu segodnya kosmologicheskuyu model': teper' my vidim, chto seichas i na z=0.7 Vselennaya rasshiryaetsya uskorenno, a pri z=1.2-1.5 - eshe s zamedleniem. astro-ph/0402518 Rentgenovskoe izluchenie ot dvoinogo pul'sara J0737-3039 (X-Ray Emission from the Double Pulsar System J0737-3039) Authors: M. A. McLaughlin et al. Comments: 5 pages, 4 figures, accepted by ApJ Letters S pomosh'yu sputnika Chandra udalos' zaregistrirovat' rentgenovskoe izluchenie ot dvoinogo radiopul'sara J0737-3039. Eto pervyi sluchai registracii rentgena ot dvoinoi neitronnoi zvezdy. Izluchenie neteplovoe. Dannye soglasuyutsya s model'yu, v kotoroi za rentgen otvetstvena magnitosfera bolee energichnogo pul'sara J0737-3039A. atlas astro-ph/0402531 Atlas vseh yarkih vzaimodeistvuyushih galaktik IRAS s uluchshennym razresheniem (An IRAS High Resolution Image Restoration (HIRES) Atlas of All Interacting Galaxies in the IRAS Revised Bright Galaxy Sample) Authors: J.A. Surace et al. Comments: 49 pages, 13 figures. To appear in AJ IRAS - odna ih pervyh i ochen' uspeshnyh kosmicheskih infrakrasnyh missii. Ee arhivnye dannye byli pereobrabotany s cel'yu uvelicheniya uglovogo razresheniya izobrazhenii. V atlase privedeny izobrazheniya 106 vzaimodeistvuyushih galaktik s vysokim razresheniem (30"-60") na chetyreh dlinah voln (12, 25, 60 i 100 mikron). PDF versiyu atlasa s izobrazheniyami vysokogo kachestva mozhno naiti na saite avtorov: http://humu.ipac.caltech.edu/~jason/pubs/surace_hires.pdf. istoricheskii obzor astro-ph/0402562 Issledovanie processov akkrecii na chernye dyry: pyat'desyat let raboty (Study of Accretion Processes on Black Holes: Fifty Years of Developments) Authors: Sandip K. Chakrabarti Pervoi rabotoi, otnosyasheisya k dannomu napravleniyu, avtor schitaet vyshedshuyu v 1952 godu nazad stat'yu Bondi (Bondi) o sfericheskoi akkrecii. [50 let etoi stat'e ispolnilos' v 2002, kogda i byl opublikovan dannyi obzor.] S etogo vremeni potok statei ros eksponencial'no i bylo sdelano ochen' mnogo. astro-ph/0402587 Karta neba v gamma-luchah po dannym BATSE (Gamma-Ray All-Sky Imaging with the Burst and Transient Source Experiment) Authors: S.E. Shaw et al. Comments: 16 pages, 10 figures Eksperiment BATSE rabotal na bortu Komptonovskoi observatorii (CGRO) s 1991 po 2000 gg. V osnovnom etot eksperiment izvesten blagodarya svoemu vkladu v izuchenie gamma-vspleskov. Odnako po dannym mnogoletnih nablyudenii mozhno sdelat' i drugie veshi (otmetim, naprimer, vazhnye raboty po dlitel'nomu monitoringu rentgenovskih pul'sarov). V dannoi rabote predstavlena karta neba v gamma-luchah po dannym BATSE. Karta postroena blagodarya tomu, chto istochniki inogda zatmevayutsya Zemlei. Posle slozhnoi obrabotki udaetsya "vychlenit'" vklad otdel'nyh istochnikov, chto i vidno na risunke. Avtory vydelili bolee 20 istochnikov. Sredi nih Krab, izvestnye akkreciruyushie tesnye dvoinye i aktivnye yadra galaktik. astro-ph/0402658 Massovoe linzirovanie na skoplenii Abell 2218: ogranicheniya na geometriyu Vselennoi (Multiple-Images in the Cluster Lens Abell 2218: Constraining the Geometry of the Universe?) Authors: G. Soucail, J.P. Kneib, G. Golse Comments: 5 pages, 3 figures, accepted in A∧A Gravitacionnoe linzirovanie eshe odin metod dlya opredeleniya kosmologicheskih parametrov. V bogatom skoplenii Abell 2218 nablyudaetsya stol' bol'shoe chislo sobytii gravitacionnogo linzirovaniya (na otdel'nyh galaktikah), chto eti parametry mozhno opredelyat' tol'ko po nim. Parametry okazyvayutsya takimi: 0 < &OmegaM < 0.30 (dlya ploskoi Vselennoi) ili 0 < &OmegaM < 0.33 i w < -0.85 (dlya ploskoi Vselennoi s kvintessenciei). Konechno, eti dannye na protivorechat nezavisimym (i bolee tochnym) rezul'tatam WMAP. astro-ph/0402664 Statisticheskie svoistva ekzoplanet: svoistva planet i kratnost' zvezd (Statistical properties of exoplanets III. Planet properties and stellar multiplicity) Authors: A. Eggenberger, S. Udry, M. Mayor Comments: 9 pages, 2 figures, accepted in A&A Na segodnyashnii den' otkryto bolee sta vnesolnechnyh planet. 19 iz nih obrashayutsya vokrug komponent dvoinyh ili kratnyh zvezd (vot oni, mechty fantastov). V dannoi stat'e issleduyutsya statisticheskie svoistva etoi gruppy ob'ektov. Odnako vyborka ochen' mala, i sdelat' znachimyh vyvodov ne udaetsya, krome odnogo: ekscentrisitety orbit planet s periodami koroche 40 dnei men'she v kratnyh sistemah, chem v odinochnyh. Dlya 5 (iz 19) planet, kotorye vhodyat v troinye i kratnye sistemy, vyvody delat' eshe rano. Yasno, odnako, chto obychnyi scenarii obrazovaniya planet v takih sistemah vryad li rabotaet. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0402115 Tehnicheskoe opisanie i rabota detektora NEMO3 (Technical design and performance of the NEMO3 detector) Authors: the NEMO Collaboration: R. Arnold, et al Comments: 62 pages, submitted to Nucl. Instrum. Methods A Eksperiment prednaznachen dlya poiska bezneitrinnogo dvoinogo beta raspada. Esli takoi kanal raspada budet obnaruzhen, to znachit neitrino maioranovskie, t.e. "sami sebe antichasticy". Stat'ya soderzhit podrobnoe opisanie etogo proishodyashego gluboko pod zemlei eksperimenta. Detali, konechno, interesny tol'ko specialistam. No avtoram udalos', na nash vzglyad, dat' ochen' kratkoe vvedenie v sut' problemy. physics/0402132 Novye predely na izmenenie postoyannoi tonkoi struktury so vremenem v nashe vremya (New limit on the present temporal variation of the fine structure constant) Authors: E. Peik et al Comments: 4 pages, 3 figures Dany novye laboratornye predely na izmenenie postoyannoi tonkoi struktury so vremenem. Issledovalis' dannye po izmeneniyu chastoty perehoda v 171Yb+ na protyazhenii 2.8 let. Postavlennye predely (d (lnα)/dt=-0.3 +/-2 10-15/god) yavlyayutsya samymi sil'nymi na segodnyashnii den'. Vernut'sya k nachalu stranicy

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