... 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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• Modelling Spectro-photometric Characteristics of Eclipsing Binaries
• Modelling Spectro-photometric Characteristics of Nonradially Pulsating Stars
• A Commodity Computing Cluster

The velocity and mass distribution of clusters of galaxies from the CNOC1 cluster redshift survey . ... The resulting sample is ideally suited for an analysis of the internal velocity and mass distribution of clusters. Previous analyses of this dataset used the Jeans equation to model the projected velocity dispersion profile. However, the results of such an analysis always yield a strong degeneracy between the mass density profile and the velocity dispersion anisotropy profile. ...

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• HST this week: 282
• HST this week: 113
• HST this week: 259

... Bisnovatyi-Kogan, Gennady S.; Merafina , Marco; Vaccarelli , Maria Rosaria; Spherically Symmetric Stellar Clusters with Anisotropy and Cutoff Energy in Momentum Distribution. ... We construct numerical models of spherically symmetric Newtonian stellar clusters with anisotropic distribution functions. ... Models of spherically symmetric relativistic stellar clusters with anisotropic distribution functions in relativistic regime are described by using Maxwellian distribution function with energy...

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Find Similar Abstracts . ... Giant voids in the universe . ... ASTRONOMICAL MODELS, GALACTIC CLUSTERS, GALACTIC EVOLUTION, GALACTIC STRUCTURE, SPATIAL DISTRIBUTION, UNIVERSE, ADIABATIC CONDITIONS, COSMOLOGY, MASS DISTRIBUTION, NEUTRINOS . ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...

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• Old neutron star distribution in the Galaxy

... Australia Telescope Compact Array . ... Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or Extremely Compact Dwarf Galaxies? ... We suggest that these objects are either super-massive star clusters (intra-cluster globular clusters or tidally stripped nuclei of dwarf galaxies) or a new type of low-luminosity compact elliptical dwarf (``M32-type'') galaxy. ... Keywords: galaxies: star clusters -- galaxies: dwarf -- galaxies: formation . ... Properties of the compact objects ...

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• The H I Column Density Distribution Function at z=0: the Connection to Damped
• Star formation and gas distribution in the Magellanic Spiral NGC 4214
• IAU SYMPOSIUM 216 - abstracts

... The large body of near infrared observations presented in Testi et al. (1997; 1998) are analysed with the aim of characterizing the young stellar clusters surrounding Herbig Ae/Be stars. The results confirm the tendency of early Be stars to be surrounded by dense clusters of lower mass "companions", while Ae stars are never found to be associated with conspicuous groups. ... Only the most massive stars (10-20Msun) are found to be associated with dense (10^3 pc^-3) stellar clusters. ...

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• A new survey of X-ray clusters of galaxies with the Swift-X-ray Telescope
• A homogeneous chemical analysis of the inner Galactic disk from the first data
• S235 (Abstract)

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Next generation Fornax Cluster surveys . ... Data Handling and Products . ... Science Data Products Forum . ... An international team, with Dr. Hilker as Co-PI, has started to gather wide-field optical and infrared imaging data as well as spectroscopic data on the whole extent of the Fornax cluster, mainly based on observations with ESO telescopes (VLT, VST, VISTA). ...

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• Velocity Distribution of the XLSS-03 Cluster | ESO
• Velocity Distribution of the XLSS-03 Cluster | ESO Australia
• Velocity Distribution of the XLSS-03 Cluster | ESO Ireland

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

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• Отдел Изучения Галактики и переменных звезд
• Zen: Abstract
• APOD: 2011 June 29 - Abell 2744: Pandora's Cluster of Galaxies

... Posts tagged ?test? ... Continue reading ?[ ... Category: arXiv , Astro , Cross-Cultural , Frequentist , Methods , News , Quotes , Stat , Uncertainty | ... Since I start reading arxiv/astro-ph abstracts and a few relevant papers about a month ago, so often I see chi-square something as an optimization or statistical inference tool. Chi-square function, chi-square statistics, chi-square goodness-of-fit test are the words that serve different data analysis purposes but under the same prefix. ...

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• The AstroStat Slog Blog Archive What is so special about chi square in
• The AstroStat Slog mixture
• AstroStatistics Workshop @ HEAD 2004

... The obtained results lead to the following conclusions: a) the heavy element enrichment had taken place in the Galaxy in a few bursts of its activity rether than in a continuons manner; b) these bursts occured during the callapse of the early Galaxy; c) the star formation had been inhibited in the time of the bursts; d) the metal enrichment did not proceed in the periods of star formation, between these bursts of activity. ...

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• Population of Galactic globular clusters, figures

Our publications in 2001 year Kniazev, A. Y.; Engels, D.; Pustilnik, S. A.; Ugryumov, A. V.; Kniazeva, T. F.; Pramsky, A. G.; Brosch, N.; Hagen, H.-J.; Hopp, U.; Izotov, Y. I.; Lipovetsky, V. A.; Masegosa, J.; Marquez, I.; Martin, J.-M. Astronomy and Astrophysics, v.366, p.771-787 (02/2001) . ... Pustilnik, S.; Kniazev, A.; Lipovetsky, V.; Ugryumov, A. Astronomische Gesellschaft Abstract Series, Vol. ... N.; Soboleva, N. S.; Temirova, A. V. Astronomische Gesellschaft Abstract Series, Vol. ...

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• A VLA Survey of Rich Clusters of Galaxies II
• Catalog of Galaxies behind the Milky Way
• A Catalogue of Radio Sources (1979)

... The molecular content of the DMTau and GGTau disks . ... 317, P L55-L58 (1997). ... Article in PDF format . ... 317, P L59-L62 (1997). ... 317, P L63-L66 (1997). ... 317, P L67-L70 (1997). ... 317, P L71-L74 (1997). ... 317, P L75-L78 (1997). ... 317, P L79-L81 (1997). ... 317, P 303-317 (1997). ... 317, P 318-327 (1997). ... 317, P 328-349 (1997). ... 317, P 350-357 (1997). ... 317, P 358-384 (1997). ... 317, P 385-392 (1997). ... 317, P 393-396 (1997). ... helpdesk@link.springer.de . ...

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• Springer LINK:A&A-EE: Table of Contents Volume 319 Number 3 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 322 Number 3 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 323 Number 2 (1997)

... Visible Distribution of Galaxies. ... Features of Elliptical, Lens-Shaped, Spiral and Irregular Galaxies. Galaxies with Bar. ... Distribution of Surface Brightness of Surface and Spiral Galaxies. ... Color Characteristics of Galaxies. ... Methods of Galaxies' Mass Determination. ... Hidden Mass of Spiral Galaxies. ... Features of Dark Matter Distribution in E and SO Galaxies. ... The Whole Number of Galaxies and Their Density by the Results of Observation on the 'Hubble' Space Telescope. ...

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• Stellar Astronomy
• Theoretical Astrophysics
• Olexiy V. Agapitov presentations & posters

... This represents the first HI selected sample covering the core and the outskirts of a local cluster of galaxies. ... Optically selected samples miss a considerable number of low luminosity, low surface brightness galaxies underestimating by almost a factor 2 the number of HI rich galaxies present in the cluster volume. ... Right: The g band luminosity function for galaxies in the A1367 volume as obtained from the optically (circles) and HI (histogram) selected sample. ...

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• http://www.naic.edu/alfa/ealfa/papers/AGES-IAUS235-Minchin.pdf
• HISA Poster for the 197th Meeting of the AAS, January, 2001
• HISA Poster for the 33rd Annual Meeting of CASCA, May, 2002

Astronomical Data Analysis Software and Systems VII ASP Conference Series, Vol. ... A Wavelet Parallel Code for Structure Detection A. Pagliaro Istituto di Astronomia dell'Universit‘a di Catania U. Becciani, V.Antonuccio and M.Gambera Osservatorio Astrofisico di Catania Abstract. We describe a parallel code for 3­D structure detection and morphological analysis. The method is based on a multiscale technique, the wavelet transform and on segmentation analysis. ... Segmentation analysis. ...

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• http://www.stecf.org/conferences/adass/adassVII/reprints/starckjl.ps.gz
• ADASS VII Subject Index

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

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• ASP: Past Pricilla and Bart Bok Award Winners
• ASP: Black Holes to Blackboards: Drifting Through Andromeda
• ASP: Globular Clusters and Satellite Galaxies: Companions to the Milky Way

... Астронет | ... The formation of chemical peculiarities in stellar atmospheres . ... Asymmetry in the variability of radio sources towards the centre and anti-centre of the galaxy . ... Mathematical methods in studying the structure and dynamics of gravitating systems . ... Mathematical methods in studying the structure and dynamics of gravitating systems: Preface . ... On the astronomical applications of the dynamics of hierarchical systems . ... Dynamics of gaseous disks of spiral galaxies . ...

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• Abell 2744: Pandoras Cluster of Galaxies
• The Hydra Cluster of Galaxies
• Galaxy Cluster Magnifies Distant Supernova

... In 1930, Trumpler noticed that linear diameters (LD) of open clusters increase with distance (D) from the Sun. ... Since that time, the interstellar absorption has become one of the best studied factor in astrophysics, and we may hope that current OCL distance scales are free from this LD-D correlation. To verify if this is the case we have chosen several modern OCL distance scales and test them with the same clusters and the same angular diameters that Trumpler had used back in 1930. ...

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• Globular Clusters: Self-Enrichment
• Publications of Dmitri Wiebe

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

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• astro-ph authors/title/abstract search for 'galaxy environment' all years
• astro-ph authors/title/abstract search for 'galaxy merging' all years
• astro-ph authors/title/abstract search for 'galaxy cluster' all years

Main Program Travel Where to go in Moscow Information . ... The 2014 year marks the 100th anniversary of Yakov Zeldovich . ... John Carlstrom (University of Chicago) . ... Lyman Page (Princeton University) . ... The conference will be held at the Space Research Institute (IKI) in Moscow, Russia, on June 16-20, 2014 . ... International Conference: Cosmology and High Energy Astrophysics (Zeldovich-90) 20-24 Dec 2004, Moscow, Russia . ... 2014 Space Research Institute, Moscow Русская версия ...

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• Zeldovich-90: COSMOLOGY AND HIGH ENERGY ASTROPHYCIS
• Zeldovich-90: COSMOLOGY AND HIGH ENERGY ASTROPHYSICS
• Spectrum-Roentgen-Gamma - The astrophysical Project at IKI RAN