... Next: Cheating Poisson: A Up: Statistical Analysis Previous: Spatial Models and . ... The spatial distribution of stars in the Local Group dwarf irregular galaxy NGC 6822 has been studied, using recent positions and deep photometry for about 15,000 stars in the galaxy. Based on photometrical data, OB stars and red stars could be studied separately. Spatial statistical tools have been applied to the analysis of the spatial structure. ... Figure: Model selection by the aid of CAIC . ...

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• References for Galaxy Clusters Database
• The Co-Addition Technique Applied to Images of Galaxy Cores
• Clustering Analysis Algorithms and Their Applications to Digital POSS-II

... We found that 10 metal-poor globular clusters are greately distinguished for anomalously small masses on the "destruction rate-mass" plain. As it turned out, these poor clusters, situated 15 kpc farther from the Galactic centre, are somewhat younger than the bulk of the metal-poor globulars, and have anomalously red horizontal branches. ... At the same time, deficiency of distant massive clusters is noticeable with increasing distance from the galactic centre. ...

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• Globular clusters with anomalously small masses, figures
• T.Borkova, V.Marsakov, Distant globular clusters with anomalously small masses
• Population of Galactic globular clusters, figures

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

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• Future of the Galaxy
• Home page of Dmitri Wiebe
• Publications of Dmitri Wiebe

Working session on Standard Candles Chair: F. Haberl · Definition of standard candles Sources with constant X-ray flux: white dwarfs isolated neutron stars supernova remnants cluster of galaxies · Scientific drivers for accurate absolute fluxes neutron star radii cosmology (e.g. total mass of galaxy clusters, Sunyaev Zeldovic effect) · Calibration purposes absolute flux ...

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• http://xmm.vilspa.esa.es/external/xmm_sw_cal/icwg/presentations/WS_SC.txt
• http://xmm.vilspa.esa.es/external/xmm_sw_cal/icwg/presentations/WS_CT.pdf
• XMM Science Objectives

... arXiv.org . astro-ph . ... SAI VO . ... Spectra of High Redshift Galaxies using a Cluster as a Gravitational Telescope . ... Using the Focal Reducer Spectrograph (FORS) at the Very Large Telescope (VLT) during the FORS commissioning time in December 1998 we took long slit spectra of the gravitational arc visible on images of the galaxy cluster 1E 0657 (z = 0.296). ... Furthermore we point out the effectivity of using FORS in combination with available gravitational telescopes. ... SAI MSU . ...

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Feb 28 2016 Cepheus - The King IC 455 5mm TV VF,VS,OVAL, NND ,R=F Galaxy S0 Nov 16 2012 18 IC 469 5mm TV Galaxy SAB(rs)ab: VF,VS,OVAL,VEXT, NND ,AV2,R=F Nov 16 2012 18 IC 1396 19mmW 25mmPL Open Cluster II3mn **STARS,BRIGHT, NICE DUST LANES,R=G DECENT NIGHT - MEGASTAR CONTROL Sep 07 2005 8 May 22 2004 8 NGC 40 7.5mmW 7.5mmW H58-4 MB,R,R=G Planetary Neb 3b+3 F,VS,R,VSMBM,*12SP Nov 11 2009 12 Oct 06 ... 13 Jul 24 2006 8" Aug 21 2004 8" PB,CS,R=F CLEAR SKIES - H.H. LITE. ...

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• http://www.wro.org/neumann/RNGC_by_Constellation-Aur.pdf
• http://www.wro.org/neumann/RNGC_by_Constellation-Lac.pdf
• http://www.wro.org/neumann/RNGC_by_Constellation-Tau.pdf

... Hubble's (1936) "tuning fork" of galaxy morphologies is the basis for modern galaxy classification. (arXiv:1102.0550.v1) Fig. ... Type E+ galaxies are "late" ellipticals, which may include faint extended envelopes typical of large cluster ellipticals, or simple transition types to S0-. (arXiv:1102.0550.v1) Fig. 7-- Examples of barred and nonbarred S0 galaxies of different stages from "early" (S0-), to "intermediate" (S0o ), to "late" (S0+), including the transition stage to spirals, Fig. ...

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• Titan
• Venus
• Jupiter's Moon Ganymede

... STELLAR DYNAMICS: FROM CLASSIC TO MODERN . ... Sobolev Astronomical Institute, Saint Petersburg State University, Russia . ... The proposed meeting is being organized by the St.Petersburg State University, assisted by an international Scientific Organizing Committee, and marks the centennial of Professor K.F.Ogorodnikov's birth. ... The conference will be organized by the Sobolev Astronomical Institute of St.Petersburg State University in the building of the Faculty of Mathematics and Mechanics. ...

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Teaching courses . for student of the Department of Astrophysics and Stellar Astronomy . ... Geophysics and physics of the planets (Kurt, Panteleev) . ... Close Binary Stars . ... Solar Physics . ... This is introductory course for students of the third year of education which are familiar with elementary astronomy and general physics. ... The one-year course includes theory of radiation transfer, theory of internal stellar structure with account of binary systems with compact comapnions. ...

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• Springer LINK:A&A-EE: Table of Contents Volume 331 Number 2 (1998)
• Springer LINK:A&A-EE: Table of Contents Volume 330 Number 3 (1998)
• Springer LINK:A&A-EE: Table of Contents Volume 327 Number 3 (1997)

arxiv:1208.5489 Kepler-47: транзитная многопланетная система вокруг двойной (Kepler-47: A Transiting Circumbinary Multi-Planet System) . Authors: Jerome A. Orosz et al. arxiv:1208.2962 Мощная вспышка звездообразования, вызванная потоком охлаждения и скоплении галактик большой светимости (A Massive, Cooling-Flow-Induced Starburst in the Core of a Highly Luminous Galaxy Cluster) . ... обзор arxiv:1208.2997 Индикаторы темпа звездообразования (Star Formation Rate Indicators) . ...

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• http://xray.sai.msu.ru/~polar/sci_rev/0709.html
• http://xray.sai.msu.ru/~polar/sci_rev/0803.html
• http://xray.sai.msu.ru/~polar/sci_rev/obzors.html

... Galaxies 95 Optical morphology of distant RATAN-600 radio galaxies T. Pursimo1, K. Nilsson1, P. Teerikorpi1, A. Kopylov2, N. Soboleva3, Yu. ... Galaxies times were from 1200 to 2000 seconds depending on the brightness of the ob ject. ... We show some examples of di erent galaxy morphologies and galaxy environments of RC USS ob jects. ... 1999. ... The absolute magnitude is MR =,20.7, which suggests that the ob ject is slightly fainter than a typical FRI radio galaxy e.g. Colina & De Juan, 1995. ...

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• http://www.gao.spb.ru/english/publ-s/viii-rfs/p099.pdf
• http://www.gao.spb.ru/english/publ-s/viii-rfs/p077.pdf

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Февраль 1998 . ... Дата: 03 февраля 1998 (1998-02-03) От: Alexander Bondugin Тема: Cassini Update - January 30, 1998 Привет всем! ... Дата: 03 февраля 1998 (1998-02-03) От: Alexander Bondugin Тема: Mars Surveyor 98 Update - February 1, 1998 Привет всем! ... Orbiter Integration and Test The orbiter spacecraft has been fully assembled and checked out functionally. ...

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• Электронная библиотека астронома-любителя. RU.SPACE.NEWS - архив за 13 апреля
• Электронная библиотека астронома-любителя. RU.SPACE.NEWS - архив за 10 апреля
• Электронная библиотека астронома-любителя. RU.SPACE.NEWS - архив за 18 мая...

... Liyong Liu (NAOC) . Site testing on seeing conditions of the astronomical observatories over China are briefly reviewed, including Xionglong station of NAOC, Gaomeigu station of Yunnan Observatory, Delingha station of Purple Mountain Observatory. ... PDF [3.0€аMB] October 8, 09:55 10:20 . ... In this paper, we will review the site survey activities in the past years, and present the site-testing results on the Oma site, including cloud cover, seeing, water vapor, transparency and sky brightness. ...

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VARIABLE STARS, THE GALACTIC HALO AND GALAXY FORMATION C. Sterken, N. Samus and L. Szabados (Eds.) 2010 Formation Mechanisms for Spheroidal Stellar Systems O. K. Sil'chenko 1 Sternberg Astronomical Institute of the Moscow State University, Moscow, Russia Abstract. Spheroidal stellar systems on various scales include elliptical galaxies, dwarf spheroidal galaxies, and globular stellar clusters. ... The formation mechanisms of the oldest globular clusters represent a puzzle yet. ... 2009). ...

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• http://sn.sai.msu.ru/~sil/preprints/my_an.pdf
• http://sn.sai.msu.ru/~sil/preprints/iau245sil.pdf
• http://sn.sai.msu.ru/~sil/preprints/postbr2.pdf

The divisity of galaxies. The galaxies are the giant (to hundred of billions of stars) star systems, where the stars are connected by gravitation laws with each other. ... Ther galaxy NGC 3031 . ... Each spiral galaxy has a core a flat disk where the spiral brancher locate. The stars and interstellar substance of spiral galaxies rotate around the core. ... In normal galaxies, such as our Galaxy, the great brightness of the core is accounted for the high concentration of stars. ...

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• devae

... BRIEF SCIENCE JUSTIFICATION: Luminous Blue Variable stars (LBVs) represent an extremely rare class of stars that define an important and poorly understood phase in the evolution of the most massive and most luminous stars. ... But there is yet another fundamental problem associated with the post-main-sequence evolution of massive stars. ... The LBV phase may now be the critical phase where most of the star's mass-loss must now occur prior to stars becoming WR stars or exploding as supernovae. ...

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• http://www.apo.nmsu.edu/Telescopes/ARCSAT/ObsSchedules/arcsat_may2014/AS07.html
• http://www.apo.nmsu.edu/arc35m/Instruments/GIFS/APO-GIFS_Factsheet.pdf
• http://www.apo.nmsu.edu/Projects/10_11Bib.pdf

... Я попытался выделить самые интересные сюжеты, в основном связанные с наблюдательной астрономией и появившиеся в Архиве препринтов в 2006 г. Большинство из этих работ описывались в моих обзорах и было включено в число "лучших из лучших" . ... Непопадание в список каких-то важных работ связано в основном с тем, что "на лету" трудно определить важность статьи вне своей области интересов, кроме того этот год выдался для меня непростым.. ... Authors: Jason W.T. Hessels et al. Статья в Обзорах . ...

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• Обзоры препринтов astro-ph

... Field of research: Extragalactic astronomy. ... NASA Astrophysics Data System (ADS) Abstract Service . ... CADC Home Page . ... CCD Images of Galaxies . ... RUSSIAN LINKS . ... UA Astronomy Personal Home Page - Bill Keel . ... The Shape of the Rotation Curves of Edge-on Galaxies, by A.V.Zasov and A.V.Khoperskov, 2003. ... A Thickness of Stellar Discs, by A.V.Zasov, and D.V.Bizyaev, 2003 . Minimum Velocity Dispersion in Stable Stellar Disks, by A.V.Khoperskov, A.V.Zasov, and N.V.Tyurina, 2003 . ...

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STAR FORMATION EFFICIENCY AND GRAVITATIONAL STABILITY OF GASEOUS DISKS IN GALAXIES In summary, gravitational instability is the essential factor of promoting SF in spiral galaxies. ... Becoming overstable, gas layer slows down its SFE, especially for the regions where the volume gas density is low, however the formation of stars still continues at the rate which is much lower now than in the past. ...

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• Comet Center of SAI
• Multiwavelength Study of Mira Ceti-Type Variable Stars

... Recently, using this propagation rule for a function with special (discretely concave) values at two adjoint facets of the tetrahedron, Knutson, Tao and Woodward, established associativity of the Hives category, that is indeed an interesting bijection between two sets of special pairs of Young tableaux (we call them Standard pairs). ... As a consequence we obtain that the KTW bijection coincides with the bijection constructed by the authors for associativity of the array category. ...

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• Labo J.-V.Poncelet: A.Sossinski
• Labo J.-V.Poncelet: A.Shen
• Labo J.-V.Poncelet: N.Vereshchagin