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  • 11.10.2004. N'yuton smotrit na M31
  • 05.10.2004. Million sekund Kassiopei A
  • 18.09.2004. Rozhdenie lacertidy
  • 16.09.2004. Planeta okolo korichnevogo karlika

    Soderzhanie i bystryi perehod k razdelam obzora


    Stat'i nedeli
    "Luchshie iz luchshih"

  • astro-ph/0410536
    Akkreciruyushie neitronnye zvezdy i chernye dyry: desyatiletie otkrytii

  • astro-ph/0410673
    Otkrytie vtorogo komponenta sverhnovoi Tiho Brage (SN 1572)

  • Obzory etogo vypuska


    Otdel'nye stat'i
  • Otlozheniya na dne okeanov v kachestve teleskopov
  • Vliyanie sverh-Habblovskih vozmushenii na kosmologiyu
  • CLASS B2108+213: novaya shirokaya gravitacionnaya linza
  • Obilie ozona v zemnoi paleoatmosfere s dominirovanie dvuokisei azota i ugleroda
  • Vliyanie naklona i kollimaciya izlucheniya rentgenovskih dvoinyh s chernymi dyrami
  • Seriya statei pro polyarizaciyu
  • Karta Faradeeva vrasheniya dlya galakticheskogo neba
  • Komponent dvoinoi, porodivshei sverhnovuyu Tiho Brage 1572 goda
  • Detektiruemost' komet vokrug zvezd tipa Solnca v zavisimosti ot vozrasta
  • Obzory
  • Ot pervyh zarodyshei k segodnyashnim sverhmassivnym chernym dyram
  • Akkreciruyushie neitronnye zvezdy i chernye dyry: desyatiletie otkrytii
  • Obzor bystroi peremennosti v rentgenovskih dvoinyh
  • Biografiya magnitnogo polya u neitronnyh zvezd
  • Sverhnovye tipa Ia i kosmologiya
  • Gravitacionnoe izluchenie ot kosmicheskih strun: vspyshki, stohasticheskii fon i okna nablyudenii
  • Zvezdoobrazovanie i himicheskaya evolyuciya na bol'shih krasnyh smesheniyah
  • Kosmicheskie luchi naivysshih energii
  • Struktura magnitovrashatel'nyh dzhetov i vetrov
  • Gravitaciya i kosmologiya v Mirah-na-brane
  • Kosmologicheskaya evolyuciya seti domennyh sten


    Iz razdela physics
  • 12th International Congress on Plasma Physics
  • Zametka o sravnenii indeksov citirovaniya v raznyh oblastyah znanii


    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 2001-2003 gg.
  • Obzory preprintov astro-ph

    Vypusk N90
    astro-ph za 25 - 31 oktyabrya 2004 goda: izbrannye stat'i

    Goryachie temy nedeli


    V etom vypuske mozhno otmetit' celyh tri goryachih temy.

    • Vo-pervyh, eto otkrytie vtorogo komponenta sverhnovoi Tiho 1572 goda (astro-ph/0410673).
    • Vo-vtoryh, seriya statei po razlichnym aspektam polyarimetricheskih (spektropolyarimetricheskih) nablyudenii (astro-ph/0410563-0410568).
    • I, nakonec, v etu nedelyu sredi preprintov okazalos' neobychno mnogo interesnyh obzorov i miniobzorov po razlichnym temam. My ih sgruppirovali v otdel'nuyu sekciyu.



    Referaty otdel'nyh statei


    astro-ph/0410525 Otlozheniya na dne okeanov v kachestve teleskopov: ispol'zovanie dannyh po izotopam dlya analiza nukleosinteza v sverhnovyh (Deep-Ocean Crusts as Telescopes: Using Live Radioisotopes to Probe Supernova Nucleosynthesis)
    Authors: Brian D. Fields, Kathrin A. Hochmuth, John Ellis
    Comments: 13 pages, 2 figures, AASTeX. Comments welcome

    Izotop zheleza 60Fe zhivet vsego 2.2 milliona let. Ispol'zuya dannye o soderzhanii etogo izotopa v okeanicheskih otlozheniyah, avtory popytalis' poluchit' ocenku na rasstoyanie do sverhnovoi, porodivshei obnaruzhennyi 60Fe. V zavisimosti ot massy zvezdy-praroditelya rasstoyanie poluchaetsya ravnym 15-120 pk. Kak vidno neopredelennost' velika (da eshe nuzhno ne zabyt' o neopredelennostyah v modelyah, kotorye ispol'zovali avtory.


    astro-ph/0410541 Vliyanie sverh-Habblovskih vozmushenii na kosmologiyu (Cosmological influence of super-Hubble perturbations)
    Authors: Edward W. Kolb, Sabino Matarrese, Alessio Notari, Antonio Riotto
    Comments: 4 pages, 0 figures

    Soglasno inflyacionnoi teorii, nachal'nye kvantovye vozmusheniya v moment bol'shogo vzryva na stadii inflyacii prevrashayutsya v ochen' shirokii spektr vozmushenii: ot mikroskopicheskih do prevyshayushih (vozmozhno na mnogo poryadkov) sovremennyi razmer Vselennoi (Habblovskii radius). Osnovnoi ideei dannoi zametki yavlyaetsya utverzhdenie, chto sverh-Habblovskie vozmusheniya okazyvayut vpolne nablyudaemoe vozdeistvie na kosmologicheskie processy v nablyudaemoi nami oblasti Vselennoi.

    [Zametim, chto k takim zhe vyvodam po dannomu voprosu prishli okolo 15 let nazad ryad avtorov, naprimer, L.P.Grishuk.]


    astro-ph/0410554 CLASS B2108+213: novaya shirokaya gravitacionnaya linza (CLASS B2108+213: A new wide separation gravitational lens system)
    Authors: J.P.McKean et al.
    Comments: 9 pages, 8 figures, accepted for MNRAS

    U bol'shinstva gravitacionnyh linz rasstoyanie mezhdu izobrazheniyami neveliko. "Shirokih" gravitacionnyh linz, rasstoyanie mezhdu izobrazheniyami v kotoryh sostavlyaet neskol'ko uglovyh sekund(!), izvestno vsego neskol'ko. CLASS B2108+213 - samyi novyi i "samyi shirokii" iz etih ob'ektov. On byl otkryt i issledovan v ramkah radioobzora CLASS (Cosmic Lens All-Sky Survey), kotoryi provodilsya na VLA na chastote 8.46 GGc i na MERLIN na 5 GGc. Kak radioizobrazheniya, tak i posleduyushie opticheskie fotografii s Habblovskogo teleskopa, pokazali prisutstvie dvuh linziruyushih galaktik i dvuh izobrazhenii (odno - sil'nee vsego linzirovannoe - s dugoi).

    Sverhu izobrazhenie linzy i dvuh galaktik v fil'tre F814 Habblovskogo teleskopa. Na etom snimke dva bol'shih izobrazheniya v centre - linziruyushie galaktiki, vnizu sleva i sprava sverhu - linzirovannye izobrazheniya udalennogo istochnika.
    Na nizhnem snimke galaktiki v centr byli "vychteny", linzirovannye izobrazheniya stali vidny gorazdo chetche, osobenno duga vozle verhnego izobrazheniya.


    astro-ph/0410555 Obilie ozona v zemnoi paleoatmosfere s dominirovanie dvuokisei azota i ugleroda (Ozone Abundance in a Nitrogen-Carbon Dioxide Dominated Terrestrial Paleoatmosphere)
    Authors: B.C. Thomas, et al.
    Comments: 7 pages, 1 figure

    Avtory postroili model', opisyvayushuyu processy vozniknoveniya i razrusheniya ozona (O3) v pervichnoi atmosfere Zemli, sostoyavshei v osnovnom iz NO2 i SO2. Ozon voznikal pod deistviem vneshnego ul'tafioletovogo izlucheniya, a razrushalsya v hode himicheskih reakcii.

    Poluchennye rezul'taty vazhny kak dlya ponimaniya rannei geologicheskoi istorii Zemli, tak i dlya izucheniya processov v atmosferah ekzoplanet.


    astro-ph/0410556 Vliyanie naklona i kollimaciya izlucheniya rentgenovskih dvoinyh s chernymi dyrami (Inclination Effects and Beaming in Black Hole X-ray Binaries)
    Authors: Ramesh Narayan and Jeffrey E. McClintock
    Comments: 24 pages, 3 figures, submitted to ApJ

    Avtory issledovali zavisimost' nablyudatel'nyh svoistv chernyh dyr v rentgenovskih dvoinyh ot nakloneniya ih orbit k luchu zreniya (ot ugla i). Ih vyvody takovy:

    1. Tranzienty (vspyhivayushie istochniki) s chernymi dyrami v nizkom sostoyanii na pokazyvayut kakoi-libo zavisimosti ot i. Eto oznachaet, chto izluchenie sistem v etom sostoyanii slabo kollimirovano, t.e. osnovnoi vklad daet akkrecionnyi disk, a ne dzhety ili zhe lorenc-faktor veshestva v dzhetah ne prevoshodit 1.2.
    2. V spektre istochnika 4U1543-47 s i~21o prisutstvuet ochen' moshnaya fluorescentnaya liniya zheleza. Esli ona formiruetsya v dzhete, to ego lorenc-faktor men'she 1.04.
    3. Ne izvestno podobnyh rentgenovskih dvoinyh s i>75o. Etot fakt, a takzhe otsutstvie zatmenii vo vseh 20 rentgenovskih dvoinyh s chernymi dyrami ukazyvaet na vozmozhnost' zatmeniya central'nogo zhestkogo istochnika diskom.
    4. Sistemy s i~70-75o imeyut gorazdo bolee slozhnoe povedenie, chem sistemy s malymi nakloneniyami. Etot effekt, veroyatno, takzhe svyazan so svoistvami akkrecionnogo diska.


    astro-ph/0410564 Polyarimetricheskaya kalibrovka bol'shih teleskopov I: metod puchkov (Polarimetric Calibration of Large-Aperture Telescopes I: The Beam-Expansion Method)
    Authors: H. Socas-Navarro
    astro-ph/0410563 Polyarimetricheskaya kalibrovka bol'shih teleskopov II: metod sub-apertur (Polarimetric Calibration of Large-Aperture Telescopes II: The sub-aperture method)
    Authors: H. Socas-Navarro
    astro-ph/0410565 Tehnika vydeleniya osobennostei dlya analiza spektral'nyh polyarizacionnyh profilei (Feature Extraction Techniques for the Analysis of Spectral Polarization Profiles)
    Authors: H. Socas-Navarro
    astro-ph/0410566 Fizicheskie svoistva spikul po odnovremennym spektropolyarimetricheskim nablyudeniyam linii He I i Ca II (Physical Properties of Spicules from Simultaneous Spectro-Polarimetric Observations of He I and Ca II Lines)
    Authors: H. Socas-Navarro, D. Ellmore
    astro-ph/0410567 Strategiya obrasheniya spektral'nyh profilei s ispol'zovanie neironnyh setei (Strategies for Spectral Profile Inversion using Artificial Neural Networks)
    Authors: H. Socas-Navarro
    astro-ph/0410568 Udarnye volny v spokoinoi solnechnoi fotosfere: neobychnye predpolozheniya (Shocks in the Quiet Solar Photosphere: A Rather Common Occurrence)
    Authors: H. Socas-Navarro, R. Manso
    Comments: ApJ Letters, submitted

    Seriya teoreticheskih i prakticheskih statei posvyashennyh polyarizacii. V nih zatronuty sleduyushie voprosy:

    • kalibrovka instrumentov, nablyudayushih polyarizaciyu;
    • obrabotka spektral'nyh polyarimetricheskih nablyudenii;
    • polyarimetricheskie nablyudeniya Solnca;
    • mehanizmy vozniknoveniya polyarizovannogo izlucheniya v solnechnoi fotosfere.


    astro-ph/0410636 Karta Faradeeva vrasheniya dlya galakticheskogo neba (A Faraday Rotation Template for the Galactic Sky)
    Authors: Patrick Dineen, Peter Coles
    Comments: 8 pages, 8 figures, submitted to MNRAS

    Faradeevo vrashenie pozvolyaet opredelit' napryazhennost' magnitnogo polya vdol' lucha zreniya. Dlya togo, chtoby postroit' kartu etoi velichiny dlya Galaktiki nado provesti (ili sobrat') nablyudeniya po krainei mere neskol'kih sot vnegalakticheskih (radio)istochnikov s polyarizovannym izlucheniem na neskol'kih dlinah voln. Imenno eto rabotu (sbor dannyh po literature) prodelali avtory dannoi raboty.

    Im udalos' sobrat' tri nabora nablyudenii, soderzhashih 540, 644 i 744 istochnika sootvetstvenno. Eti dannye pozvolyayut stroit' karty do 16-18 sfericheskoi garmoniki vklyuchitel'no. Dve karty iz etogo nabora pokazany nizhe.

    Verhnyaya karta postroena po 744 istochnikam i soderzhit garmoniki vplot' do lmax=16. Nizhnyaya karta ta zhe, no iz nee udaleny dipol' i kvadrupol' (l=2 i 3, sootvetsvenno).


    Otkrytie !!! astro-ph/0410673 Komponent dvoinoi, porodivshei sverhnovuyu Tiho Brage 1572 goda (The binary progenitor of Tycho Brahe's 1572 supernova)
    Authors: Pilar Ruiz-Lapuente et al.
    Comments: 31 pages, 4 figures, accepted by Nature

    Sverhnovaya Tiho Brage (SN 1572) odna iz dvuh istoricheskih sverhnovyh tipa Ia (vtoroi byla SN 1006) v nashei Galaktike. Sverhnovaya pervogo tipa proishodit, kak seichas schitaetsya, iz-za termoyadernogo vzryva belogo karlika, kotoryi dostig predel'noi (Chandrasekarovskoi) massy i poteryal ustoichivost'. Podobnyi process (uvelichenie massy belogo karlika) mozhet effektivno proishodit' tol'ko v dvoinoi sisteme: libo pri akkrecii veshestva s nevyrozhdennogo vtorogo kompan'ona, libo pri sliyanii dvuh belyh karlikov.

    Pohozhe, chto v sverhnovoi Tiho realizovalsya imenno pervyi scenarii. Pri glubokom obzore central'noi chasti ostatka sverhnovoi byla naidena zvezda spektral'nogo klassa G0-G2 (podobnaya nashemu Solncu), kotoraya dvizhetsya so skorost'yu primerno v tri raza bol'shei, chem srednyaya skorost' zvezd v okrestnosti ostatka.

    Sprava glubokii Habblovskii snimok. Sleva - shema dvizheniya zvezd na etom snimke. Kresty v centre shemy otmechayut geometricheskie centry rentgenovskogo izlucheniya Chandra (Ch), ROSAT (RO) i centr radioizlucheniya ostatka (Ra). Vokrug kazhdogo iz nih proveden krug radiusom 0.5" (sinie punktirnye linii). Sploshnoi krug - oblast', za predely kotoroi ni pri kakih usloviyah ne mogla vyletet' vtoraya komponenta predsverhnovoi.

    Zvezda, otozhdestvlennaya so vtorichnym komponentom predsverhnovoi po sobstvennomu dvizheniyu, oboznachena bukvoi G. Esli eto otozhdestvlenie verno, to v 1572 godu sverhnovaya vzorvalas' v tochke, otmechennoi krestom i bukvami (Ty).

    Krasnye tochki - polozheniya zvezd s vysokim sobstvennym dvizheniem na moment vzryva sverhnovoi.


    astro-ph/0410679 Detektiruemost' komet vokrug zvezd tipa Solnca v zavisimosti ot vozrasta (The Age-Dependence of the Detectabiity of Comets Orbiting Solar-Type Stars)
    Authors: M. Jura
    Comments: 6 pages, 1 figure, accepted by ApJ

    Nalichie komet vokrug G-zvezd glavnoi posledovatel'nosti mozhet byt' obnaruzheno po (dostatochno redkomu) poyavleniyu linii poglosheniya OH vblizi 3100A v spektre zvezdy. Veroyatnost' etogo sobytiya dostatochno mala (~3x10-8, chto sootvetstvuet poyavleniyu aktivnoi komety podobnoi komete Heila-Boppa). V molodyh zvezdnyh sistemah, gorazdo bolee bogatyh kometami, eta veroyatnost' mozhet byt' sushestvenno vyshe i dostigat' 1%.

    hep-ph/0410356 Kosmologicheskaya evolyuciya seti domennyh sten (The Cosmological Evolution of Domain Wall Networks)
    Authors: J.C.R.E.Oliveira, C.J.A.P.Martins, P.P.Avelino
    Comments: 7 pages, submitted to Phys Rev D

    Avtory izuchili evolyucii sistemy domennyh stenok v dvuh, treh I chetyrehmernyh prostranstvah.


    Vypusk 90: Obzory

    obzor astro-ph/0410526 Ot pervyh zarodyshei k segodnyashnim sverhmassivnym chernym dyram (From the Earliest Seeds to Today's Supermassive Black Holes)
    Authors: Piero Madau
    Comments: 15 pages, invited review to appear in "Growing Black Holes", eds. A. Merloni, S. Nayakshin, R. Sunyaev, Springel-Verlag series of "ESO Astrophysics Symposia"

    Problema vozniknoveniya sverhmassivnyh chernyh dyr v centrah galaktik do sih por ne reshena v polnoi mere. Est' neopredelennosti s zarodyshami, iz kotoryh rastut masivnye dyry, ne udaetsya poluchit' dostatochno massivnye chernye dyry na bol'shih krasnyh smesheniyah i t.d. i t.p.

    P'ero Madau daet obzor seh etih problem, a takzhe opisyvaet rezul'taty svoih (s soavtorami) nedavnih rabot.


    obzor astro-ph/0410536 Akkreciruyushie neitronnye zvezdy i chernye dyry: desyatiletie otkrytii (Accreting Neutron Stars and Black Holes: A Decade of Discoveries)
    Authors: Dimitrios Psaltis (University of Arizona)
    Comments: 42 pages; 24 figures. To appear in "Compact Stellar X-ray Sources", eds. W.H.G. Lewin and M. van der Klis

    Glava iz knigi, posvyashennoi kompaktnym rentgenovskim istochnikam. Avtor daet podrobnyi obzor osnovnyh otkrytii (i nablyudatel'nyi i teoreticheskih) v oblasti issledovanii akkreciruyushih neitronnyh zvezd i chernyh dyr za poslednee desyatiletie.

    Mnogo poleznyh tablic, a takzhe ogromnyi spisok ssylok na original'nye issledovaniya.


    obzor astro-ph/0410551 Obzor bystroi peremennosti v rentgenovskih (A review of rapid X-ray variability in X-ray binaries)
    Authors: M. van der Klis
    Comments: 73 pages, 21 figures, no color to appear in Compact stellar X-ray sources, Lewin & van der Klis (eds), Cambridge University Press

    Eshe odna glava iz "Compact stellar X-ray sources".

    van der Klis yavlyaetsya, pozhalui, samym krupnym ekspertom po QPO - kvaziperiodicheskim oscillyaciyam, Etot tip peremennosti nablyudaetsya u akkreciruyushih neitronnyh zvezd i chernyh dyr. Po QPO mozhno poluchat' vazhnuyu informaciyu o parametrah sistem.


    miniobzor astro-ph/0410607 Biografiya magnitnogo polya u neitronnyh zvezd (A Biography of the Magnetic Field of a Neutron Star)
    Authors: Malvin Ruderman (Columbia University)
    Comments: Latex 16 pages, 3 figures

    Izvestnyi specialist po neitronnym zvezdam - Malvin Ruderman - daet nabrosok biografii neitronnoi zvezdy ot ee detstva do dovol'no "zrelogo" vozrasta. Osnovnoe vnimanie udelyaetsya evolyucii magnitnogo polya.

    Posle korotkogo perioda ochen' intensivnogo ostyvaniya tol'ko chto rodivsheisya neitronnoi zvezdy my poluchaem vrashayushuyusya zamagnichennuyu kanonicheskuyu neitronnuyu zvezdu: so sverhprovodyashimi protonami, sverhtekuchimi neitronami i predel'no vyrozhdennymi relyativistskimi elektronami v yadre, prichem vse eto okruzheno vysokoprovodyashei koroi. Dal'neishaya evolyuciya podobnogo ob'ekta predskazyvaet izmenenie orientacii magnitnogo dipolya, anomal'no malyi polyarnyi kasp u millisekundnyh pul'sarov i periodicheskie sboi vrasheniya - "glitchi".

    Otmetim, chto narisovannaya v stat'e kartina dostatochno kachestvennaya, i real'nost' mozhet okazat'sya kuda slozhnee.


    obzor astro-ph/0410609 Sverhnovye tipa Ia i kosmologiya (Type Ia Supernovae and Cosmology)
    Authors: Alexei V. Filippenko
    Comments: 39 pages, 17 figures

    Sverhnovye tipa Ia yavlyayutsya prekrasnymi standartnymi svechami s dostatochnoi dlya kosmologicheskih issledovanii yavkost'yu. S ih pomosh'yu byli prodelany sleduyushie izmereniya: postoyannaya Habbla - H0=72+/-8 km/s/Mpk (po sverhnovym s z<0.1); plotnost' Vselennoi i kosmologicheskaya postoyannaya - ΩΛ=0.72 i ΩM=0.28 (primerno po 200 sverhnovym); vozrast Vselennoi t=13.1+/-1.5 Gyr (po sverhnovym s z=1.0-1.7). Srednee vremya mezhdu obrazovaniem zvezdy i vspyshkoi ee kak sverhnovoi (tipa Ia) sostavlyaet primerno 3 milliarda let.

    V obzore vy naidete eshe mnogo interesnogo.


    obzor hep-th/0410222 Gravitacionnoe izluchenie ot kosmicheskih strun: vspyshki, stohasticheskii Fon i okna nablyudenii (Gravitational radiation from cosmic (super)strings: bursts, stochastic background, and observational windows)
    Authors: Thibault Damour and Alexander Vilenkin
    Comments: 16 pages, 6 figures

    Kosmicheskie struny (ne putat' s mikroskopicheskimi superstrunami) yavlyayutsya ob'ektami ochen' maloi tolshiny, kosmicheskoi (ili, skoree, kosmologicheskoi protyazhennosti) i sushestvennoi massy. Kosmicheskie struny dvizhutsya ili koleblyutsya (zamknutye struny) s lineinymi skorostyami, blizkimi k svetovym. Pri etom oni izluchayut gravitacionnye volny, vysokochastotnaya chast' spektra kotoryh budet popadat' v diapazon chuvstvitel'nosti nazemnyh (LIGO/VIRGO) i kosmicheskih (LISA) detektorov. (Gladkie uchastki strun izluchayut nizkochastotnye volny, vysokochastotnoe izluchenie dayut kaspy - peregiby i skladki zamknutyh strun.) Krome etogo fon gravitacionnyh voln mozhet byt' obnaruzhen po dolgovremennym nablyudeniyam taiminga pul'sarov.

    Drugim istochnikom nizkochastotnyh gravitacionnyh voln mogut byt' molodye i plotnye skopleniya zvezd. Etomu posvyashen miniobzor Simona Portegis Zvarta astro-ph/0410531.


    miniobzor astro-ph/0410684 Zvezdoobrazovanie i himicheskaya evolyuciya na bol'shih krasnyh smesheniyah (Star Formation and Chemical Evolution at High Redshift)
    Authors: Chip Kobulnicky
    Comments: 12 pages, 8 figures

    V etom obzore rassmotreny mehanizmy obogasheniya metallami v galaktikah na srednih i bol'shih krasnyh smesheniyah, vklyuchaya tempy zvezdoobrazovaniya, pogloshenie pyl'yu, kinematiku i himicheskih sostav mezhzvezdnoi sredy v galaktikah s moshnym zvezdoobrazovaniem. Na malyh krasnyh smesheniyah z=0-3 temp obogasheniya metallami sostavlyaet ΔZ/Δz=0.18-0.26 dex, chto gorazdo nizhe predskazyvaemogo kosmologicheskimi modelyami na bolee rannih etapah.


    miniobzor astro-ph/0410685 Kosmicheskie luchi naivysshih energii (Highest Energy Cosmic Rays)
    Authors: A. V. Olinto (KICP)
    Comments: 12 pages, 10 figures

    Nebol'shoi, no dostatochno polnyi obzor problem, svyazannyh s samymi energichnymi kosmicheskimi luchami. Osobyi interes predstavlyaet modelirovanie neba v sverhzhestkih kosmicheskih luchah.

    Otdel'no hochetsya takzhe porekomendovat' stat'yu Gorbunova i Troickogo, takzhe posvyashennuyu rasprostraneniyu kosmicheskih luchei sverhvysokih energii.


    obzor astro-ph/0410704 Struktura magnitovrashatel'nyh dzhetov i vetrov (The Structure of Magnetocentrifugal Jets and Winds I. Steady Mass Loading)
    Authors: Jeffrey M. Anderson, Zhi-Yun Li, Ruben Krasnopolsky and Roger D. Blandford
    Comments: 36 pages, including 19 figures, LaTeX, submitted to ApJ

    "Sceplenie" veshestva s magnitnym polem vrashayusheisya zvezdy porozhdaet magnitovrashatel'nye potoki veshestva razlichnoi stepeni kollimacii (uzkie - dzhety, shirokie - vetra). Dannyi obzor posvyashen rezul'tatam chislennogo modelirovaniya dannogo yavleniya na rasstoyaniyah ot 0.1 do 1AE ot central'noi zvezdy.


    obzor gr-qc/0410129 Gravitaciya i kosmologiya v Mirah-na-brane (Gravitation and cosmology in brane-worlds)
    Authors: David Langlois
    Comments: 20 pages, 5 figures

    Izuchenie Mirov-na-brane - populyarnoe napravlenie sovremennoi kosmologii, v kotorom nashe 4-mernoe prostranstvo-vremya predpolagaetsya vlozhennym v ob'emlyushee prostranstvo bol'shei razmernosti. Avtor rassmatrivaet tol'ko 5-mernye prostranstva, a osnovnoe vnimanie udelyaet svoistvam gravitacii v etih mirah i osobennostyam ih kosmologii.





    My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing).

    proceedings 12th International Congress on Plasma Physics

    V razdele Physics avtory prodolzhayut vykladyvat' materialy 12-go Mezhdunarodnogo kongressa po fizike plazmy.

    math.ST/0410574 Zametka o sravnenii indeksov citirovaniya v raznyh oblastyah znaniya (A note on comparison of scientific impact expressed by number of citations in different fields of science)
    Authors: Igor Podlubny
    Comments: 5 pages, 1 table Subj-class: Statistics

    Avtor sravnivaet indeksy citirovaniya v raznyh oblastyah znaniya za 1992, 1994, 1996, 1997, 1999 i 2001 gg, Pokazano, chto otnoshenie polnogo chisla citirovanii sohranyaetsya. T.e., esli v 1992 godu otnoshenie chisla citirovanii v fizike i himii sostavlyalo "n", to primerno takoe zhe otnoshenie sohranyaetsya i v drugie gody.


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