The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N84) Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 18.09.2004. Rozhdenie lacertidy 16.09.2004. Planeta okolo korichnevogo karlika 14.09.2004. Gravitacionnye linzy i tridcatimetrovyi glaz 26.06.2004. Molodoe zvezdnoe skoplenie NGC 7129: Perepis' zvezd Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0409274 Nauka so SKA astro-ph/0409323 Vozmozhnaya planeta-gigant okolo korichnevogo karlika astro-ph/0409392 H1517+656: rozhdenie ob'ekta tipa BL Lac? Goryachie temy nedeli SKA Otdel'nye stat'i Astrometricheskoe otkrytie GJ 164B 30-ti metrovye teleskopy i gravitacionnoe linzirovanie Differencial'noe vrashenie F-zvezd glavnoi posledovatel'nosti Novye otkrytiya v fizike solnechnogo vetra s pomosh'yu SOHO Poisk temnoi materii budushimi kosmicheskimi pozitronnymi eksperimentami Nauka so SKA Kosmologiya na SKA Tur po koncepciyam standartnoi kosmologicheskoi modeli Kvadrupol' mikrovolnovogo izlucheniya vyzvannyi polyarizaciei na skopleniyah i filamentah Vozmozhnaya planeta-gigant okolo korichnevogo karlika Gamma-luchi vysokih energii Rasstoyanie do Pleyad: blizkie infrakrasnye spektry zvezd glavnoi posledovatel'nosti Proverka anomalii Pionerov s pomosh'yu missii k Plutonu Pervye izmereniya polyarizacii reliktovogo izlucheniya na malyh uglovyh masshtabah na CAPMAP Geo-neitrino: korotkii obzor Spektral'naya klassifikaciya posle M H1517+656: rozhdenie ob'ekta tipa BL Lac? Datirovka vozrasta galaktik so zvezdoobrazovaniem Vyzhivanie diskov vokrug radiopul'sarov Iz razdela physics Ekzoticheskie atomy 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 Druzhestvennye rassylki: "Astronomiya dlya shkol'nikov" "Okno vo Vselennuyu" Zamechatel'nyi sait Astronomiya i teleskopostroenie Novosti nauki na Grani.Ru

Obzory preprintov astro-ph Vypusk N85 astro-ph za 13 - 19 sentyabrya 2004 goda: izbrannye stat'i Goryachie temy nedeli SKA Prodolzhaetsya potok rabot, posvyashennyh SKA. V pervuyu ochered' stoit prochitat' rabotu astro-ph/0409274, gde daetsya vvedenie v problematiku, svyazannuyu s etim proektom. Zatem stoit posmotret' bol'shuyu stat'yu astro-ph/0409278, s opisaniem kosmologicheskih nablyudenii na SKA. Interesnoe predlozhenie obsuzhdaetsya v rabote Spacecraft Tracking with the SKA. Eto tehnicheskoe prilozhenie SKA k obsluzhivaniyu kosmicheskih missii. Izucheniyu magnitnyh polei v blizkih galaktikah (i v samom Mlechnom puti) posvyashena stat'ya astro-ph/0409368. Obychno kartina raspredeleniya magnitnogo polya stroitsya kak raz po radionablyudeniyam, i SKA zdes' budet prosto chempionom! Referaty otdel'nyh statei astro-ph/0409235 Astrometricheskoe otkrytie GJ 164B (Astrometric Discovery of GJ 164B) Authors: Steven H. Pravdo et al Comments: 14 pages, 6 figs Malomassivnyi komponent u karlika GJ 164 spektral'nogo klassa M byl otkryt s pomosh'yu astrometricheskih izmerenii na PZS kamere Zvezdnogo Planetnogo Obzora. Komponent poluchil oboznachenie GJ 164B. Poskol'ku parallaks etoi sistemy izvesten (0.082+/-0.008"), udalos' vychislit' parametry ee orbity: P=2.04+/-0.03 goda, a=1.03+/-0.03AE, summarnaya massa sistemy M=0.265+/-0.020Mo. Massy komponent, sootvetstvenno, MA=0.170+/-0.015Mo i MB=0.095+/-0.015Mo. Na osnove etih dannyh novyi komponent otnesen k zvezdam so spektral'nym klassom M6-8V. astro-ph/0409236 30-ti metrovye teleskopy i gravitacionnoe linzirovanie (Thirty Meter Telescopes and Gravitational Lensing) Authors: R. G. Carlberg Comments: invited contribution to IAU 225, Gravitational Lensing, eds G. Meylan and Y. Mellier (CUP) Planiruetsya, chto v 2015 godu zarabotayut 30-ti metrovye teleskopy. Bezuslovno, u nih budet mnogo zadach. Odna iz nih svyazana s nablyudeniyami linzirovannyh ob'ektov. V chastnosti, mozhno budet bolee tochno vosstanavlivat' kartinu raspredeleniya mass v linze. Na risunke nizhe pokazan rezul'tat modelirovaniya togo, kak mozhet vyglyadet' linzirovanie glazami 30-metrovogo teleskopa. Vazhnaya osobennost': vidny galaktiki do z=15 Modelirovanie kusochka neba razmerom 40 na 32 uglovyh sekundy. Pokazany galaktiki do krasnogo smesheniya z=15. Krasnye - kak raz samye dalekie galaktiki (sinie - samye blizkie). V stat'e est' eshe horoshie kartinki. astro-ph/0409246 Differencial'noe vrashenie F-zvezd glavnoi posledovatel'nosti (Differential rotation of main sequence F stars) Authors: M. Kueker, G. Ruediger Comments: 7 pages, 10 figures Proizveden raschet differencial'no vrashayusheisya zvezdy nulevogo vozrasta (tol'ko chto vyshedshei na glavnuyu posledovatel'nost') s massoi 1.2Mo (spektral'nogo klassa F8). Samosoglasovannyi profil' differencial'nogo vrasheniya poluchilsya ochen' pohozhim na Solnechnyi. Maksimal'naya raznost' skorostei vrasheniya (na ekvatore i polyuse) dostigalas' pri periode 7 dnei, t.e. pri medlennom vrashenii. astro-ph/0409260 Novye otkrytiya v fizike solnechnogo vetra s pomosh'yu SOHO (New Insights into Solar Wind Physics from SOHO) Authors: Steven R. Cranmer Comments: 9-page invited review paper, 4 figures, to be published in proceedings of the 13th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, Hamburg, Germany, 5-9 July 2004, ESA Opisyvaetsya missiya SOHO i ee dostizheniya v oblasti izucheniya solnechnogo vetra. Stat'ya napisana dostatochno ponyatno i prosto. hep-ph/0409104 Poisk temnoi materii budushimi kosmicheskimi pozitronnymi eksperimentami (Searching for Dark Matter with Future Cosmic Positron Experiments) Authors: Dan Hooper, Joseph Silk Comments: 19 pages, 33 figures Esli v galo Galaktiki est' temnaya materiya, to annigilyaciya ee chastic budet davat' pozitronnyi potok. Eto mozhno budet nablyudat' s pomosh'yu kosmicheskih eksperimentov AMS-02 i PAMELA (PAMELA, kstati, sozdaetsya s uchastiem rossiiskih uchenyh, v chastnosti iz MIFI, i prototip etogo apparata - NINA - uzhe uspeshno porabotal). Avtory obsuzhdayut neskol'ko konkretnyh kandidatov v temnuyu materiyu i, sootvetstvenno, delayut nekotorye predskazaniya otnositel'no vozmozhnogo detektirovaniya pozitronnogo signala. astro-ph/0409274 Nauka so SKA (Science with the Square Kilometer Array: Motivation, Key Science Projects, Standards and Assumptions) Authors: C. Carilli, S. Rawlings Comments: 6 pages, 3 tables, espcrc2.sty. to appear in Science with the square kilometer array, New Astronomy Reviews, (Elsevier, Amsterdam), eds. C. Carilli & S. Rawlings Goryachaya tema proshlogo ( 84-go) vypuska byla posvyashena SKA. Vot stat'ya, kotoraya v nekotorom smysle dolzhna sluzhit' vvedeniem v proekt SKA. Avtory kratko opisyvayut celi proekta i ego osnovnye sostavlyayushie. astro-ph/0409278 Kosmologiya so SKA (Cosmology with the Square Kilometre Array) Authors: Chris Blake, Filipe Abdalla, Sarah Bridle, Steve Rawlings Comments: 20 pages, 8 figures. To appear in "Science with the Square Kilometer Array", eds. C.Carilli and S.Rawlings, New Astronomy Reviews (Elsevier: Amsterdam) Kak yasno iz nazvaniya, stat'ya rasskazyvaet o tom, kakie kosmologicheskie zadachi mozhno reshat' s pomosh'yu SKA. Osnovnoi upor delaetsya na to, chto vsego za god SKA smozhet sdelat' obzor dostupnoi poloviny neba. Budut polucheny dannye po neskol'kim milliardam istochnikov (!). Rezul'taty izmerenii dlya milliarda galaktik na krasnom smeshenii z<1.5 pozvolit poluchit' vazhneishie dannye ob ih skuchivanii, t.e. o svoistvah krupnomasshtabnoi struktury. Ne vydelyaya v otdel'nuyu zametku otmetim takzhe stat'yu Probing the Dark Ages with the Square Kilometer Array, posvyashennuyu blizkoi tematike. obzor astro-ph/0409280 Tur po koncepciyam standartnoi kosmologicheskoi modeli (A Conceptual Tour About the Standard Cosmological Model) Authors: Antonio L. Maroto, Juan Ramirez Comments: 26 pages, 3 figures S nachalom XXI veka sovpalo prevrashenie semeistva blizkih Standartnyh Kosmologicheskih Modelei v odnu gorazdo bolee konsolidirovannuyu. Eto svyazano s verifikaciei dannoi modeli na gorazdo bolee tochnyh astronomicheskih dannyh. Avtory rassmatrivayut svyaz' bazovyh fizicheskih koncepcii s sovremennymi kosmologicheskimi modelyami. Osnovnye temy? Zatronutye v obzore: OTO i kosmologicheskie konstanty; Kosmologicheskii princip i model' Fridmana-Robertsona-Uokera; Habblovskaya diagramma i temnaya energiya; Krupnomasshtabnaya struktura i temnaya materiya; Reliktovoe izluchenie, pervichnyi nukleosintez i inflyaciya. astro-ph/0409297 Kvadrupol' mikrovolnovogo izlucheniya vyzvannyi polyarizaciei na skopleniyah i filamentah (CMB Quadrupole induced polarisation from clusters and filaments) Authors: Guo-Chin Liu, Antonio da Silva, Nabila Aghanim Comments: 8 pages Prohozhdenie izlucheniya cherez elementy krupnomasshtabnoi struktury (skopleniya galaktik i filamenty) vyzyvaet izmenenie struktury reliktovogo fona. Eti izmeneniya ohvatyvayut vse masshtaby, vplot' do kvadrupolya. Krome togo, posle Podobnogo rasseyaniya fonovoe izluchenie okazyvaetsya polyarizovannym. Maksimum polyarizacii budet prihodit'sya na masshtaby s l=560--20000. astro-ph/0409323 Vozmozhnaya planeta-gigant okolo korichnevogo karlika (A Giant Planet Candidate near a Young Brown Dwarf) Authors: G. Chauvin et al. Comments: 4 pages and 4 figures, letter accepted to A&A Po dannym nablyudenii na 8.2-metrovom teleskope Yepun (eto odin iz chetverki teleskopov sistemy VLTI) obnaruzhen slabyi ob'ekt okolo korichnevogo karlika 2MASSWJ1207334-393254. Nablyudeniya provodilis' v IK-diapazone. Rasstoyanie ot karlika do slabogo ob'ekta okolo 55 astronomicheskih edinic. Priroda istochnika do konca ne yasna. Eto mozhet byt' vtoroi korichnevyi karlik tol'ko men'shego razmera (spektral'nyi klass L5-L9.5). Massa takogo ob'ekta v raznyh modelyah okazyvaetsya razlichnoi, ot odnoi do desyati mass Yupitera. Sootvetstvenno mozhno nazvat' takoi ob'ekt planetoi-gigantom. Otmetim, chto massa samogo 2MASSWJ1207334-393254 sostavlyaet primerno 25 mass Yupitera. Otmetim, chto poka ne dokazana svyazannost' etih dvuh ob'ektov. Vozmozhno, chto eto ne svyazannaya para, a prosto rezul'tat sluchainogo nalozheniya. Esli podtverditsya, chto ob'ekty obrazuyut paru (rasstoyanie ot nas do korichnevogo karlika sostavlyaet okolo 70 pk), to eto budet pervoe pryamoe izobrazhenie ekzoplanety. miniobzor astro-ph/0409361 Gamma-luchi vysokih energii (High Energy Gamma Ray) Authors: Mathieu de Naurois Comments: Invited talk at the XXIV Physics in Collisions Conference (PIC04), Boston, USA, June 2004, 10 pages, LaTeX, 13 eps figures. PSN TUET07 Nebol'shoi obzor po astrofizike gamma-luchei vysokih energii. Vklyucheny kak nedavnie otkrytiya, tak i opisaniya osnovnyh deistvuyushih i proektiruemyh ustanovok. astro-ph/0409362 Rasstoyanie do Pleyad: blizkie infrakrasnye spektry zvezd glavnoi posledovatel'nosti (The distance to the Pleiades: Main sequence fitting in the near infrared) Authors: S.M. Percival et al. Comments: 8 pages. A&A accepted Astrometricheskii eksperiment Gipparhos ocenil rasstoyanie do Pleyad v 118 pk. Eto na 10% men'she "klassicheskih" ocenok na osnove podgonki spektrov zvezd glavnoi posledovatel'nosti v etoi gruppe. Chem mozhet byt' vyzvano podobnoe rashozhdenie? Avtora proveli vysokotochnoe sravnenie teoreticheskih i nablyudaemyh spektrov zvezd Pleyad v blizkom IK-diapazone i poluchili ocenku rasstoyaniya 133.8+/-3 pk. Sledovatel'no, eto rezul'taty Gipparhosa imeyut 10% tochnost'. astro-ph/0409373 Proverka anomalii Pionerov s pomosh'yu missii k Plutonu (Testing for the Pioneer anomaly on a Pluto exploration mission) Authors: Andreas Rathke Comments: 6 pages, 2 figures. Talk at the 3rd International Conference on Frontier Science - Physics and Astrophysics in Space, Frascati, Italy, 14-19 June 2004 Korotkaya zametka. Sut', v principe, yasna iz nazvaniya. V kachestve vtorichnogo zadaniya dlya proektiruemoi missii k Plutonu rassmatrivaetsya proverka anomalii v znachenii uskoreniya sputnikov Pioner-10 i -11. Evropeiskoe kosmicheskoe agenstvo rassmatrivaet proekty missii k Plutonu. Eto dolzhen byt' nebol'shoi sputnik, kotoryi budet krutit'sya vokrug Plutona na nizkoi krugovoi orbite. Polet budet soprovozhdat'sya gravitacionnymi manevrami, a potomu do celi sputnik doberetsya lish' v 2034 godu. Dlya proverki anomalii neobhodimo derzhat' pod tshatel'nym kontrolem sam apparat (teplopoteri, moshnost' izluchatelei i t.p.). Vse eto trebuet produmyvaniya konstrukcii sputnika. Krome togo trebuetsya (i eto vozmozhno) obespechit' bolee tochnoe (po-sravneniyu s Pionerami) otslezhivanie skorosti i polozheniya apparata. Dlya drugih nauchnyh zadach takaya tochnost' nesushestvenna, no bylo by neploho ee zalozhit' v konstrukciyu, chtoby nakonec razobrat'sya s etoi anomaliei. Hotya ... dazhe esli proekt budet odobren, zhdat' pridetsya dolgo. astro-ph/0409380 Pervye izmereniya polyarizacii reliktovogo izlucheniya na malyh uglovyh masshtabah na CAPMAP (First measurements of the polarization of the cosmic microwave background radiation at small angular scales from CAPMAP) Authors: D. Barkats et al. Comments: 5 pages, 2 figures, submitted to ApJ CAPMAP - Cosmic Anisotropy Polarization MAPper. Eto nazemnyi amerikanskii proekt po izmereniyu polyarizacii kosmicheskogo mikrovolnovogo fona. V stat'e predstavleny rezul'taty pervogo sezona nablyudenii. Poka est' signal lish' na urovne 2-3 standartnyh otkloneniya, t.e. eto eshe ne otkrytie. miniobzor hep-ph/0409152 Geo-neitrino: korotkii obzor (Geo-Neutrinos: a short review) Authors: Gianni Fiorentini et al. Comments: 7 pages, 2 figures, presented at Neutrino 2004 in Paris Kak poluchat' neposredstvennye dannye iz zemnyh glubin? Naprimer, s pomosh'yu neitrino, voznikayushih pri raspade radioaktivnyh elementov (urana, toriya, kaliya). V obzore (ne takom uzh i korotkom vse-taki) rassmatrivayutsya osnovnye idei i podhody k etoi probleme. Obsuzhdayutsya kak raznye teorii vnutrennego stroeniya ZEmli, kotorye mozhno bylo by podtverdit' ili otvergnut', a takzhe planiruemye special'nye neitrinnye detektory. miniobzor astro-ph/0409389 Spektral'naya klassifikaciya posle M (Spectral Classification Beyond M) Authors: S.K.Leggett et al. Comments: 12 pages including 17 figures Uzhe okolo 10 let posle zvezd klassa M, kotorymi ran'she vse konchalos', idet klass L (infrakrasnye zvezdy), a za nim klass T (korichnevye karliki). Segodnya izvestno uzhe mnogo ob'ektov etih klassov. V obzore rassmotreny modeli atmosfer etih ob'ektov i na etoi osnove opisyvayutsya ih spektral'nye svoistva. astro-ph/0409392 H1517+656: rozhdenie ob'ekta tipa BL Lac? (H1517+656: the Birth of a BL Lac Object?) Authors: Matthew O'Dowd et al. Comments: 29 pages, 9 figures, accepted for publication in ApJ H1517+656 - odna iz samyh moshnyh lacertid (v opticheskom diapazone eto prosto samyi moshnyi ob'ekt sredi istochnikov etogo klassa). Schitaetsya, chto lacertidy (napomnim, chto nazvanie proishodit ot istochnika-prototipa BL Lac) obladayut ekstremal'nymi svoistvami, potomu chto my smotrim pryamo v zherlo aktivnogo yadra galaktiki: napravlenie dzheta prakticheski sovpadaet s luchom zreniya. V etoi stat'e avtory rassmatrivayut interesnuyu gipotezu. Oni polagayut, chto my fakticheski nablyudaem formirovanie lacertidy. Argumenty ih takovy. Na izobrazheniyah H1517+656 nablyudayut dugi. Rassmotrenie razlichnyh variantov ih proishozhdeniya privelo avtorov k zaklyucheniyu, chto naibolee veroyatnoe ob'yasnenie vozniknoveniya dug - sliyanie galaktik. Pri etom sliyanie proizoshlo v ploskosti neba, t.e. my smotrim perpendikulyarno ploskosti sliyaniya. Napravlenie dzheta estestvennym obrazom ortogonal'no ekvatoru central'noi chernoi dyry. Pri sliyanii na chernuyu dyru budet vypadat' mnogo veshestva, chto budet ee raskruchivat', i dazhe mozhet izmenit' napravlenie osi vrasheniya, povernuv ee perpendikulyarno ploskosti, v kotoroi proishodit pritok veshestva. T.o., esli my vidim aktivnoe yadro perpendikulyarno ploskosti sliyaniya galaktik, to my smotrim pryamo v dzhet, t.e. vidim lacertidu. Issledovaniya zvezdnogo sostava podtverzhdayut gipotezu o sliyanii, poetomu vsya kartina vyglyadit vpolne obosnovannoi. obzor astro-ph/0409407 Datirovka vozrasta galaktik so zvezdoobrazovaniem (Age-Dating of Starburst Galaxies) Authors: Claus Leitherer Comments: 16 pages, 6 figures. Invited review talk. To be published in "The Evolution of Starbursts", ed. S. Huettemeister & E. Manthey (Melville: AIP) Daetsya obzor metodov opredeleniya vozrastov zvezdnyh populyacii posle vspyshke zvezdoobrazovaniya. astro-ph/0409408 Vyzhivanie diskov vokrug radiopul'sarov (Disks Surviving the Radiation Pressure of Radio Pulsars) Authors: K.Y. Eksi and M.A. Alpar Comments: accepted by Astrophysical Journal Potok izlucheniya ot radiopul'sara vovse ne obyazan razrushit' okruzhayushii ego disk. V dannoi oblasti za poslednie desyatiletiya vyshlo vsego neskol'ko teoreticheskih rabot, s kotorym avtory sravnivayut svoi rezul'taty. Vyvod avtorov takov: nesmotrya na mnenie predshestvennikov, diski vokrug radiopul'sarov mogut sushestvovat' dazhe v radiacionno-dominirovannoi zone. Pri etom oni mogut imet' slozhnuyu iskrivlennuyu formu iz-za vzaimodeistviya s magnitnym polem neitronnoi zvezdy. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0409058 Ekzoticheskie atomy (Exotic atoms) Authors: Paul Indelicato Comments: Physica Scripta T112 (2004) 20-26 V osnovnom opisany sovremennye eksperimenty s ekzoticheskimi atomami. Chto skryvaetsya za etim nazvaniem? Eto "atomy", gde po-krainei mere odna iz privychnyh chastic (protony, elektrony) zamenena na nechto bolee redkoe: myuon, pion, antiproton i t.p. Sama stat'ya korotkaya i ponyatnaya (dazhe ochen' ponyatnaya, soobshayutsya fakticheski vse skol'-nibud' neobhodimye dannye). Krome togo, prilagaetsya bol'shoi spisok literatury, nu i, konechno zhe, risunki. Bylo by neploho, esli by kto-nibud' na osnove etoi stat'i sdelal populyarnyi material na russkom. 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 >>