The R.A.P.Project "Prosto o slozhnom" "Astro-ph za vtoruyu polovinu 2003 g." Nemnogo statistiki Predydushii vypusk (N66) Zvezdy AstroRuneta-2003 Slovar' astroterminov Spisok missii i teleskopov Obzory UFN Stat'i SOZh ANKa Dnya 19.01.2004. Saturn pochti ne viden ... Soderzhanie i bystryi perehod k razdelam obzora Stat'i nedeli "Luchshie iz luchshih" astro-ph/0401476 Glitch akkreciruyushego pul'sara astro-ph/0401547 Vvedenie v kosmologiyu astro-ph/0401549 Ogranicheniya na al'ternativy chernyh dyr astro-ph/0401638 Nablyudeniya pokrytii zvezd Lunoi Otdel'nye stat'i Glitch akkreciruyushego pul'sara Evolyuciya Mlechnogo puti s samyh rannih etapov: ogranicheniya na zvezdnyi nukleosintez Fabrika blizkih sverhnovyh Issledovanie n'yutonovskoi postoyannoi na bol'shih masshtabah Fenomenologicheskie aspekty kosmologii s dominiruyushei rol'yu temnoi energii Astrofizicheskaya seriya observatorii Karnegi Gravitacionnoe linzirovanie v standartnyh i al'ternativnyh kosmologiyah Vvedenie v kosmologiyu Ogranicheniya na al'ternativy chernyh dyr K voprosu o nizkoi masse kompan'ona v sisteme J0737-3039 Tormozhenie magnitara, gipermoshnye sverhnovye i gamma-vspleski Evolyuciya prilivnyh ostatkov Gravitacionnoe izluchenie pri kollapse vrashayushegosya yadra: effekty magnitnyh polei i realistichnyh uravnenii sostoyaniya Usovershenstvovannye tuluzskie solnechnye modeli VLA 3.6cm obzor galakticheskih zvezd Vol'fa-Raie Kratkoe izlozhenie modeli ekpiroticheskoi/ciklicheskoi Vselennoi Vliyanie cvetnoi sverhprovodimosti na strukturu i obrazovanie kompaktnyh ob'ektov Fizika gazovyh ekzoplanet: ot teorii k nablyudeniyam Variacii postoyannoi tonkoi struktury v prostranstve i vremeni Anizotropiya kosmicheskih luchei sverhvysokih energii Nablyudeniya pokrytii zvezd Lunoi v infrakrasnom i opticheskom diapazonah na polutorometrovom teleskope v Calar Alto dlya izmereniya diametrov zvezd i obnaruzheniya novyh dvoinyh sistem Uvelichenie chisla detektiruemyh gravitacionno-volnovyh signalov za schet gravitacionnogo linzirovaniya Iz razdela physics Narushenie simmetrii razbeganiya murav'ev, vyzvannogo panikoi Vne prostranstva i vremeni Stohasticheskoe modelirovanie oshibok v citirovanii Tri stat'i po fizike asteroidov, planet i iskusstvennym sputnikam 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 N67 astro-ph za 26 - 31 yanvarya 2004 goda: izbrannye stat'i Referaty otdel'nyh statei astro-ph/0401476 Glitch akkreciruyushego pul'sara (A Frequency Glitch in an Accreting Pulsar) Authors: D.K. Galloway et al. Comments: 10 pages, 4 figures; submitted to ApJ Glitch - eto sboi perioda vrasheniya. Nablyudayutsya oni u obychnyh radiopul'sarov (naprimer, u pul'sara v Krabe) i nedavno byli otkryty u anomal'nyh rengenovskih pul'sarov. No nikogda glitchi ne nablyudalis' u akkreciruyushih neitronnyh zvezd v tesnyh dvoinyh sistemah. Pri glitche skachkom menyaetsya period vrasheniya. Menyaetsya na neznachitel'nuyu velichinu. Svyazyvayut eto ili s izmeneniem momenta inercii kory zvezdy, ili s otryvom vihrevyh nitei, kotorye "pricepleny" k kore iznutri. Avtory etoi raboty privodyat dannye o rezkom (zavedomo menee 10 chasov) izmenenii perioda neitronnoi zvezdy v sisteme KS 1947+300. Eto dvoinaya s Ve-zvezdoi. Period vrasheniya neitronnoi zvezdy 18.7 sekundy. Vvidu slozhnosti povedeniya perioda vrasheniya akkreciruyushih neitronnyh zvezd v dvoinyh sistemah avtory rassmatrivayut razlichnye prichiny skachka perioda. Odnako, po ih mneniyu, glitch - samaya veroyatnaya. Tem ne menee otmetim, chto delo eto poka temnoe. Tem bolee, chto glitch poluchaetsya ochen' netipichnym kak po velichine, tak i po posleduyushei evolyucii vrasheniya neitronnoi zvezdy. V lyubom sluchae, avtoram udalos' uvidet' ochen' interesnoe yavlenie. astro-ph/0401499 Evolyuciya Mlechnogo puti s samyh rannih etapov: ogranicheniya na zvezdnyi nukleosintez (The evolution of the Milky Way from its earliest phases : constraints on stellar nucleosynthesis) Authors: Patrick Francois et al. Comments: 20 pages, 10 figures, submitted to A&A Mozhno rassmatrivat' dinamicheskuyu evolyuciyu nashei galaktiki, mozhno rassmatrivat' spektral'nuyu evolyuciyu, a mozhno i himicheskuyu (sm. obzor v stat'e astro-ph/0401538). So vremenem himicheskii sostav galaktiki postoyanno menyaetsya v storonu uvelicheniya doli tyazhelyh elementov za schet sinteza v zvezdah. Za schet zvezdnyh vetrov i vzryvov veshestvo popadaet v mezhzvezdnuyu sredu, zatem v zvezdy novogo pokoleniya i t.d. V etoi rabote avtory modeliruyut himicheskuyu evolyuciyu Mlechnogo Puti, ispol'zuya novye dannye po evolyucii massivnyh zvezd i po sverhnovym tipa Ia. Zatem rezul'taty modeli sravnivayutsya s dannymi nablyudenii. Dlya sravneniya ispol'zovany samye novye dannye (osobenno po Solnechnoi okrestnosti). Na osnovanii sravneniya avtory delayut vyvody kak o parametrah modelei evolyucii zvezd i proizvodstva v nih elementov, tak i ob istorii nashei Galaktiki. Naprimer, is treh rassmotrennyh modelei sverhnovyh tol'ko odna bez modifikacii daet priemlemye rezul'taty. astro-ph/0401513 Fabrika blizkih sverhnovyh (The Nearby Supernova Factory) Authors: W. M. Wood-Vasey et al. Comments: 7 pages, 3 figures to be published in New Astronomy Reviews Na proshloi nedele my pisali o tom, kak kosmologicheskii obzornyi proekt planiruyut ispol'zovat' dlya izucheniya malyh tel Solnechnoi sistemy. Na etot raz vse naoborot. Nebol'shoi (1.2 metra) teleskop programmy poiska okolozemnyh asteroidov (NEAT) ispol'zuyut dlya poiska sverhnovyh. Rech' idet o sverhnovyh tipa Ia na krasnyh smesheniyah 0.03 < z < 0.08. Planiruetsya issledovat' okolo 300 takih ob'ektov (otsyuda i nazvanie "fabrika" zaimstvovannoe, kak nam kazhetsya, iz fiziki elementarnyh chastic, gde populyarny temriny "mezonnaya fabrika" i t.p.). Kak vy pomnite, sverhnovye tipa Ia ispol'zuyut v kosmologii kak standartnye svechi. Avtory planiruyut ispol'zovat' dannye po blizkim sverhnovym v pervuyu ochered' dlya kalibrovki. Planiruetsya, chto temp otkrytiya sverhnovyh na dannoi ustanovke budet okolo 12 shtuk v mesyac! astro-ph/0401515 Issledovanie n'yutonovskoi postoyannoi na bol'shih masshtabah (Probing Newton's Constant on Vast Scales: DGP Gravity, Cosmic Acceleration and Large Scale Structure) Authors: Arthur Lue, Roman Scoccimarro, and Glenn D. Starkman Comments: 20 pages, 3 figures Sushestvuet interesnaya al'ternativa "temnoi energii", predlozhennaya v rabotah Dvali, Gababadze i Porrati. Sut' ee sostoit v tom, chto, esli my zhivem na brane, to gravitony mogut "utekat'" s nee v osnovnoi ob'em (bulk) - t.e. v dopolnitel'nye izmereniya. Eto privodit k tomu, chto na bol'shih (kosmologicheskih) masshtabah zakon tyagoteniya budet nemnozhechko inym. Predskazaniya modeli vpolne konkretny, i ih mozhno pytat'sya proveryat'. Naprimer, po dannym ob obrazovanii krupnomasshtabnoi struktury. Sobstvenno etim i zanyalis' avtory rassmatrivaemoi stat'i. Oni pokazyvayut, chto esli dinamika rasshireniya Vselennoi ob'yasnyaetsya takim "begstvom" gravitonov, to imeetsya voobshe govorya znachimoe, no ne dramaticheskoe, rashozhdenie s nablyudaemymi parametrami krupnomasshtabnoi struktury. Poskol'ku protivorechie obnaruzhivaetsya vsego lish' na urovne dvuh standartnyh otklonenii, to neobhodima dal'neishaya rabota, v tom chisle i po utochneniyu predpolozhenii, sdelannyh avtorami dannoi stat'i. dissertaciya astro-ph/0401517 Fenomenologicheskie aspekty kosmologii s dominiruyushei rol'yu temnoi energii (Phenomenological aspects of dark energy dominated cosmologies) Authors: Pier Stefano Corasaniti Comments: PhD thesis, University of Sussex, 109 pages Krome samostoyatel'nogo interesa original'nyh rezul'tatov dissertaciya mozhet byt' polezna tem, kto hochet razobrat'sya v sovremennyh dannyh o dinamike rasshireniya Vselennoi i v ih interpretacii. vazhnaya ssylka astro-ph/0401526 Astrofizicheskaya seriya observatorii Karnegi (The Carnegie Observatories Astrophysics Series) Authors: Luis C. Ho Comments: The Carnegie Observatories Astrophysics Series is available online at http://www.ociw.edu/ociw/symposia/series/ V svyazi so stoletnim yubileem observatoriya Karnegi nachinaet izdanie serii knig. Nachinaetsya izdanie s materialov chetyreh konferencii: (1) Coevolution of Black Holes and Galaxies [Ed. L. C. Ho] (2) Measuring and Modeling the Universe [Ed. W. L. Freedman] (3) Clusters of Galaxies: Probes of Cosmological Structure and Galaxy Evolution [Ed. J. S. Mulchaey, A. Dressler, and A. Oemler] (4) Origin and Evolution of the Elements [Ed. A. McWilliam and M. Rauch] Prichem elektronnye versii uzhe dostupny! Vsyacheski rekomenduem. dissertaciya astro-ph/0401542 Gravitacionnoe linzirovanie v standartnyh i al'ternativnyh kosmologiyah (Gravitational Lensing in Standard and Alternative Cosmologies) Authors: Margarita Safonova Comments: Ph.D. thesis (University of Delhi, 2002) Kak i polozheno v dissertacii vypisano yavno mnogo poleznyh formul i sdelan neplohoi obzor. Nu i konechno zhe - original'nye rezul'taty. obzor astro-ph/0401547 Vvedenie v kosmologiyu (TASI Lectures: Introduction to Cosmology) Authors: Mark Trodden, Sean M. Carroll Comments: 82 pages, 12 figures, contributions to the TASI-02 and TASI-03 summer schools V stat'e ob'edineny tri lekcii, prochitannye na shkole po fizike elementarnyh chastic. Lekcii rasschitany kak vvodnye, no dlya aspirantov po special'nostyam fizika elementarnyh chastic i teoriya strun. Tak chto kosmologiya-to daetsya s azov, zato dlya teh, kto horosho znaet matematiku i fiziku. astro-ph/0401549 Ogranicheniya na al'ternativy chernyh dyr (Constraining Alternate Models of Black Holes: Type I X-ray Bursts on Accreting Fermion-Fermion and Boson-Fermion Stars) Authors: Ye-Fei Yuan, Ramesh Narayan, Martin J. Rees Comments: 29 pages, 7 figures, to appear in The Astrophysical Journal Ochen' vazhnaya rabota. My neodnokratno otmechali, chto pri opredelennom urovne paranoii vsegda mozhno oboitis' bez chernyh dyr. Delo v tom, chto protestirovat' pryamo-taki nalichie gorizonta ochen' trudno. Poetomu poyavlyayutsya razlichnye al'ternativy, inogda ochen' interesnye i tshatel'no prorabotannye. V dannoi stat'e avtory rassmatrivayut naibolee sil'nye al'ternativy, sravnivayut ih s nablyudeniyami, nu i delayut opredelennye vyvody. Povtorim vsled za Kipom Tornom: "V dannom sluchae chernaya dyra - eto samaya konservativnaya gipoteza". astro-ph/0401553 K voprosu o nizkoi masse kompan'ona v sisteme J0737-3039 (On the Low Progenitor Mass of the Binary Pulsar J0737-3039B) Authors: Tsvi Piran, Nir J. Shaviv Comments: 12 pages, 3 figure Kak navernoe mnogie pomnyat, v nedavno otkrytoi sisteme, sostoyashei iz dvuh radiopul'sarov, massa vtorogo komponenta dovol'no mala - okolo 1.25 massy Solnca. Avtory rassuzhdayut o tom, s chem eto mozhet byt' svyazano. Problema kroetsya v tom, chto esli sistema bystro sbrasyvaet bolee poloviny massy, to ona razrushaetsya (eto esli net special'no podobrannoi skorosti otdachi pri sbrose). Pri mnogih "podgonochnyh" variantah s sohraneniem sistemy poluchaetsya dovol'no bol'shoi ekscentrisitet, a u J0737-3039 on kak raz mal (menee 0.1). Krome togo, sistema sidit blizko ot ploskosti Galaktiki, chto yavlyaetsya argumentom v pol'zu maloi skorosti otdachi. Znachit, poluchaetsya, chto bylo sbrosheno ochen' malo veshestva pri pochti nulevoi otdache. Massa predsverhnovoi poluchaetsya menee 2 mass Solnca (dazhe vozmozhno menee 1.5). Voobshe govorya, eto ne ochen' horosho soglasuetsya s teoriyami vzryvov sverhnovyh .... astro-ph/0401555 Tormozhenie magnitara, gipermoshnye sverhnovye i gamma-vspleski (Magnetar Spindown, Hyper-Energetic Supernovae, and Gamma Ray Bursts) Authors: Todd A. Thompson et al. Comments: 16 pages, 5 figures, emulateapj V stat'e avtory pytayutsya uvyazat' v edinoe celoe formirovanie sil'nozamagnichennyh neitronnyh zvezd (magnitarov), gamma-vspleski i sverhnovye s bol'shim energovydeleniem. Sut' sostoit v tom, chto esli obrazuetsya bystrovrashayushayasya sil'nozamagnichennaya neitronnaya zvezda, to dinamika povedeniya udarnoi volny budet sil'no drugoi. Eto mozhet kak dat' dopolnitel'nuyu energiyu dlya vzryva, tak i sozdat' usloviya dlya gamma-vspleska (dzhety, naprimer). O magnitarah mozhno takzhe prochest' v rabote astro-ph/0401561. miniobzor astro-ph/0401557 Evolyuciya prilivnyh ostatkov (The Evolution of Tidal Debris) Authors: Chris Mihos Comments: Invited review at IAU Symposium 217, "Recycling Intergalactic and Interstellar Matter". 10 pages, 6 figures Vzaimodeistvie galaktik privodit k ih prilivnomu iskazheniyu ili dazhe razrusheniyu. My neodnokratno pisali v nashih obzorah i ANKah ob ostatkah takih vzaimodeistvii. V dannoi rabote privoditsya kratkii obzor nashego ponimaniya evolyucii takih ostatkov: chto proishodit so zvezdami i gazom, kak menyaetsya sostav mezhgalakticheskoi sredy i t.p. astro-ph/0401563 Gravitacionnoe izluchenie pri kollapse vrashayushegosya yadra: effekty magnitnyh polei i realistichnyh uravnenii sostoyaniya (Gravitational Radiation from Rotational Core Collapse: Effects of Magnetic Fields and Realistic Equation of States) Authors: Kei Kotake et al. Comments: 25 pages, 6 figures, accepted for publication in PRD Vzryvy sverhnovyh yavlyayutsya odnimi iz vozmozhnyh istochnikov gravitacionnyh voln. Pravda, pri etih vzryvah ne takaya uzh bol'shaya dolya energii uhodit v vide gravvspleka, no tem ne menee. Sovremennye detektory mogli by "pochuvstvovat'" sverhnovuyu v nashei Galaktike. Odnako, chitatel' mozhet pomnit', chto dlya gravdetektorov ochen' vazhno zaranee znat' formu signala (hotya by priblizitel'no), togda ego gorazdo legche vydelit' na fone shumov. Raschet realistichnyh form signalov ochen' slozhen, t.k. slozhny processy, protekayushie pri vzryve. V etoi rabote avtory pytayutsya v slozhnoi chislennoi modeli uchest' effekty magnitnyh polei i uravneniya sostoyaniya veshestva vzryvayushegosya yadra. astro-ph/0401568 Usovershenstvovannye tuluzskie solnechnye modeli (Updated Toulouse solar models including the diffusion-circulation coupling and the effect of $\mu$-gradients) Authors: O. Richard, S. Th\'eado, S. Vauclair Comments: to be published in Solar Physics My redko pishem o Solnce po dvum prichinam: 1. My ne specialisty 2. v Arhive nechasto popadayutsya stat'i po etoi tematike V dannoi rabote avtory predstavlyayut razvitie solnechnyh modelei, kotorymi ih gruppa zanimaetsya uzhe dostatochno davno. Problema v tom, chto pro Solnce my znaem uzhe ochen' mnogo: i neitrino, i gelioseismologiya, i .... I vse eto nado opisat' i ob'yasnit'. "I vse odna? Tyazhelo-o-o-o-oo ...", kak govorila Gyul'chatai Suhovu. astro-ph/0401571 VLA 3.6cm obzor galakticheskih zvezd Vol'fa-Raie (A Very Large Array 3.6cm continuum survey of Galactic Wolf-Rayet stars) Authors: C. Cappa et al. Comments: Comments: 21 pages, Latex, 21 postscript figures, to be published in The Astronomical Journal, May 2004 Na proshloi nedele my pisali o teorii neteplovogo radioizlucheniya massivnyh zvezd. A vot dannye nablyudenii. Na VLA na dline volny 3.6 sm avtory otnablyudali 34 galakticheskih zvezdy Vol'fa-Raie. Ot 15 iz nih bylo zaregistrirovano neteplovoe radioizluchenie (dlya 13 iz nih - vpervye), eshe 5 istochnikov yavlyayutsya vozmozhnymi kandidatami. populyarnyi miniobzor astro-ph/0401579 Kratkoe izlozhenie modeli ekpiroticheskoi/ciklicheskoi Vselennoi (A Briefing on the Ekpyrotic/Cyclic Universe) Authors: Justin Khoury Comments: 8 pages, 1 figure. Invited talk at the 6th RESCEU Symposium, Nov. 2003, Tokyo, Japan Inflyacionnaya model' na segodnyashnii den' yavlyaetsya naibolee standartnoi i obsheprinyatoi. Odnako, ei est' neskol'ko al'ternativ. Odna iz samyh raskruchennyh - model' ekpiroticheskoi/ciklicheskoi Vselennoi. I Sergei Pavlyuchenko v svoih obzorah, i my neodnokratno ob etoi modeli upominali. Zdes' mozhno prochest' kratkoe izlozhenie. nucl-th/0401052 Vliyanie cvetnoi sverhprovodimosti na strukturu i obrazovanie kompaktnyh ob'ektov (Effects of color superconductivity on the structure and formation of compact stars) Authors: Drago, A. et al. Comments: 4 pages, 2 figures. To be published in Phys.Rev.D Uzhe davno obsuzhdaetsya vozmozhnost' sushestvovaniya razlichnyh ekzoticheskih sostoyanii materii v nedrah togo, chto my nazyvaem "neitronnye zvezdy". Soglasno ryadu modelei mnogie iz nih iz neitronov i ne sostoyat! Inogda vydelyayut takie chetyre gruppy: I. Adronnye zvezdy (v nih ne proizoshel t.n. dekonfainment - vysvobozhdenie kvarkov) 1. Obychnye neitronnye zvezdy. Sostoyat celikom iz obychnoi yadernoi materii. 2. Giperonnye zvezdy. V nedrah est' giperony. II. Kvarkovye zvezdy. 1. Gibridnye zvezdy. V nih est' kvarkovoe yadro i normal'naya vneshnyaya chast'. 2. "Golye" (bare) kvarkovye zvezdy. Net dazhe vneshnei kory (ili ona ochen'-ochen' tonkaya). V poslednee vremya aktivno stali obsuzhdat' astrofizicheskie proyavleniya dopolnitel'nogo energovydeleniya, svyazannogo s dekonfainmentom. A tam est' chto obsuzhdat'! Energii - kak u sverhnovoi. Sootvetstvenno rassmatrivayut dva varianta: vydelenie energii srazu posle obrazovaniya kompaktnogo ob'ekta ili zhe zaderzhka (otlozhennyi dekonfainment). V pervom sluchae daetsya dopolnitel'nyi vklad v dinamiku vzryva. Vo vtorom - mozhno sdelat' gamma-vsplesk cherez nekotoroe vremya posle vzryva sverhnovoi. Obe vozmozhnosti ochen' interesny i ochen' vazhny, t.k. pomogayut ob'yasnyat' real'nye nablyudeniya. Sobstvenno, v samoi stat'e ne predlagaetsya nichego revolyucionnogo. Avtory rassmatrivayut nekotorye detali modelei. No ona budet bezuslovno interesna tem, kto eshe nichego po etoi teme ne chital (hotya speshim zametit', chto stat'ya ne rasschitana na populyarnoe izlozhenie). miniobzor astro-ph/0401608 Fizika gazovyh ekzoplanet: ot teorii k nablyudeniyam (The physics of extrasolar gaseous planets : from theory to observable signatures) Authors: G. Chabrier et al. Comments: 12 pages, 3 figures Korotkii obzor po vsem tipam "nedozvezdnyh" ob'ektov: korichnevye (burye) karliki, ekzoplanety-giganty i t.p. Obsuzhdayutsya chem oni otlichayutsya kak po stroeniyu, tak i po mehanizmam formirovaniya. Formul malo, poetomu obzor budet dostupen dlya mnogih. dissertaciya astro-ph/0401631 Variacii postoyannoi tonkoi struktury v prostranstve i vremeni (Variations of the Fine Structure Constant in Space and Time) Authors: D.F. Mota Comments: 158 pages, 39 figures; Ph.D. Thesis; DAMTP, University of Cambridge; (Ph.D. Advisor: John D. Barrow) Vo mnogih sovremennyh teoriyah "postoyannye ne yavlyayutsya postoyannymi". Takie izvestnye konstanty kak, postoyannaya Planka, skorost' sveta, gravitacionnaya postoyannaya mogut izmenyat'sya, naprimer v hode kosmologicheskoi evolyucii. Razumeetsya, izmeneniya mogut byt' lish' nichtozhnymi. Dlya popytok obnaruzhit' izmeneniya postoyannoi Planka i/ili skorosti sveta ochen' podhodit izvestnaya postoyannaya tonkoi struktury. Osnovnaya ideya sostoit v issledovanii spektrov dalekih kvazarov i sravnenii ih s laboratornymi spektrami (u nas v strane etoi tematikoi aktivno zanimalas' gruppa Varshalovicha i Levshakova v Sankt-Peterburge). V dissertacii, kak obychno, detal'no rasskazyvaetsya o metodah, istorii i t.p. Daetsya mnogo ssylok. obzor astro-ph/0401632 Anizotropiya kosmicheskih luchei sverhvysokih energii (Anisotropies in Ultrahigh Energy Cosmic Rays) Authors: John Swain Comments: 20 pages, Invited talk at the 10th Marcel Grossmann Meeting in Rio de Janeiro, 20-26 July 2003 Poka ne zarabotaet proekt Ozhe (t.e. poka ne budet sobrana horoshaya bogataya statistika po kosmicheskim lucham sverhvysokih energii), a mozhet i dol'she, proishozhdenie samyh vysokoenergichnyh chastic, priletayushih na Zemlyu, budet ostavat'sya zagadkoi. Odin iz voprosov, kotoryi poka ne reshen, takov: izotropno li raspredeleny sobytiya po nebu? Mnogie issledovateli pytalis' i pytayutsya naiti korrelyacii kosmicheskih luchei s razlichnymi tipami ob'ektov (naprimer, galaktikami s vysokim tempom zvezdoobrazovaniya). V dannoi rabote daetsya dostatochno ischerpyvayushii obzor po etoi problematike. V stat'e mnogo formul, no est' i vpolne dostupnye otryvki, t.o. s odnoi storony mozhno razobrat'sya vo vseh detalyah, a s drugoi, esli prochest' "vvedenie" i "zaklyuchenie", to mozhno uhvatit' sut' problemy i sovremennoe sostoyanie del bez izlishnih tehnicheskih trudnostei. astro-ph/0401638 Nablyudeniya pokrytii zvezd Lunoi v infrakrasnom i opticheskom diapazonah na polutorometrovom teleskope v Calar Alto dlya izmereniya diametrov zvezd i obnaruzheniya novyh dvoinyh sistem (Infrared and visual lunar occultations measurements of stellar diameter and new binary stars detections at the Calar Alto 1.5m telescope) Authors: O. Fors et al. Comments: 15 pages, 3 figures, LaTeX, uses aa.cls. Accepted for publication in A&A Po nablyudeniyam pokrytiya zvezd Lunoi mozhno opredelyat' ih diametry! Ob etom byli populyarnye stat'i na russkom (sm. naprimer, rabotu E. Trunkovskogo). V dannoi stat'e predstavleny rezul'taty primerno 40 nablyudenii. Dlya dvuh gigantov (30 Psc i V349 Gem) udalos' dostatochno tochno izmerit' diametry. Takzhe byli obnaruzheny ochen' tesnye dvoinye (SAO 164567, SAO 78258 i AG+24 788) s rasstoyanie mezhdu komponentami vsego lish' 0.006 uglovyh sekundy. gr-qc/0312028 Uvelichenie chisla detektiruemyh gravitacionno-volnovyh signalov za schet gravitacionnogo linzirovaniya (Increase of the Number of Detectable Gravitational Waves Signals due to Gravitational Lensing) Authors: M. Arnaud-Varvella, M.-C. Angonin, Ph. Tourrenc Comments: 34 pages, Accepted for publication in General Relativity and Gravitation Ochen' vazhno nakonec zaregistrirovat' gravitacionno-volnovye signaly! Odnako delo eto ochen' slozhnoe. Poetomu lyudi obsuzhdayut raznye (samye ekzotichnye) idei o tom, kak chislo nablyudaemyh signalov mozhno uvelichit'. Zabavnaya mysl' sostoit v vozmozhnosti uvelicheniya chisla detektiruemyh vspleskov za schet linzirovaniya. V etoi stat'e avtory tshatel'no issledovali etot vopros v primenenii k nazemnym i kosmicheskim interferometram. K sozhaleniyu, vyvody pessimisticheskie: nikakogo ser'eznogo uvelicheniya chisla vspleskov ne poluchaetsya. Esli vas interesuyut tehnicheskie detali i vsyakie podrobnosti - pozhaluista, izuchaite stat'yu. My budem starat'sya hotya by perechislit' interesnye (dlya shirokoi publiki) stat'i, poyavivshiesya v razdele physics (vklyuchaya cross-listing). physics/0401124 Narushenie simmetrii razbeganiya murav'ev, vyzvannogo panikoi (Panic induced symmetry breaking in escaping ants) Authors: E. Altshuler, O. Ramos, Y. Nunez, J. Fernandez Comments: 3 pages, 1 figure Pochemu-to kazhetsya, chto eta stat'ya - sil'nyi pretendent na Ig-Nobelya. physics/0401128 Vne prostranstva i vremeni (Beyond Space And Ti) Authors: Ruediger Vaas Comments: 7 pages, English translation by Amitabha Sen of the German article "Jenseits von Raum und Zeit" by Ruediger Vaas, published in bild der wissenschaft (2003), no. 12, pp. 50-56 Sudya po rezul'tatam poiska na SPIRES Ruediger Vaas pishet mnogo populyarnyh statei (v osnovnom na nemeckom) o sovremennoi fundamental'noi fizike. Eta stat'ya posvyashena v osnovnom petlevoi kvantovoi gravitacii (loop quantum gravity). Otmetim, chto toi zhe teme posvyashena zaglavnaya stat'ya nedavnego nomera Scientific American, tak chto vozmozhno, chto v skorom vremeni vyidet ee perevod v "V mire Nauki". cond-mat/0401529 Stohasticheskoe modelirovanie oshibok v citirovanii (Stochastic modeling of citation slips) Authors: M.V. Simkin, V.P. Roychowdhury Comments: 12 pages, PDF only Ocherednaya rabota avtorov, kotorye pokazyvayut, chto indeks citiruemosti zavisit ne tol'ko ot zaslug avtorov, no i ot ryada drugih processov. Tri stat'i po fizike planet Tri stat'i gruppy amerikanskih avtorov. Pervaya posvyashena asteroidam, vtoraya - protoplanetam, tret'ya - iskusstvennym sputnikam Zemli. physics/0401152 Orbits of Dust Ejecta From Ceres Authors: R. C. Nazzario, T. W. Hyde Comments: 2 pages, Lunar and Planetary Science XXXIII (2002) physics/0401154 Protoplanetary Migration and Creation of Scattered Planetismal Disks Authors: Bruce D. Lindsay, Truell W. Hyde Comments: 2 pages, Lunar and Planetary Science XXXIII (2002) physics/0401161 Impact Studies Using a One Stage Light Gas Gun Authors: Jorge Carmona et al. Comments: 2 pages, Lunar and Planetary Science XXXV 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 >>