In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

... HST . ... Proposal ID = 12304 Principle Investigator = Jon A. Holtzman - New Mexico State University Title = "Metallicity Distribution Functions of 4 Local Group Dwarf Galaxies" Time = Mar 24, 2012 10:37:03 - 14:56:47 Target = LEO-II Instrument = WFC3/UVIS, WFC3/IR . ... The most direct way to study the star formation history of the universe is to observe very distant galaxies. ... Dwarf galaxies therefore provide a "fossil record" of how star formation has proceeded in the universe. ...

... Archives . ... ArXiv] SVM and galaxy morphological classification, Sept. 10, 2007 . ... On the Metallicity-Color Relations and Bimodal Color Distributions in Extragalactic Globular Cluster Systems by M. Cantiello and J. P. Blakeslee . Many observations on globular cluster systems (GCS) show bimodal distributions in color and metallicity space. ... Based on their simulation study, (V-H) and (V-K) are confirmed to be good colors for revealing unbiased bimodal metallicity distributions in GCS. ...

... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Finding the Bivariate Brightness Distribution of galaxies from an H I selected sample . ... A method is presented that will enable the bivariate luminosity/surface brightness distribution of galaxies to be determined from a relatively small H I selected sample. ... PICASSO - an automated galaxy finder . ...

Our publications in 2008 year Ekta; Chengalur, Jayaram N.; Pustilnik, S. A. Monthly Notices of the Royal Astronomical Society, Volume 391, Issue 2, pp. ... Astronomy Letters, Volume 34, Issue 7, pp.457-467 (07/2008) . Pustilnik, S. A.; Tepliakova, A. L.; Kniazev, A. Y.; Burenkov, A. N. Monthly Notices of the Royal Astronomical Society: Letters, Volume 388, Issue 1, pp. ... Kniazev, A. Y.; Pustilnik, S. A.; Zucker, D. B. Monthly Notices of the Royal Astronomical Society, Volume 384, Issue 3, pp. ...

... Theis, 2006, Monthly Notices of the Royal Astronomical Society, 373, 197-208: "Boltzmann moment equation approach for the numerical study of anisotropic stellar disks". ... Shchekinov, 2006, New Astronomy, 11, 240-255: "Radial transport of dust in spiral galaxies". ... E. I. Vorobyov & Shantanu Basu , 2005, Monthly Notices of the Royal Astronomical Society, 363, 1361-1368 : "The effect of non-isothermality on the gravitational collapse of spherical clouds and the evolution of protostellar accretion"...

... Abell 2744: Pandoras Cluster of Galaxies . ... Credit Copyright: NASA , ESA , J. Merten ( ITA , AOB ), D. Coe ( STScI ) Explanation: Why is this cluster of galaxies so jumbled? Far from a smooth distribution, Abell 2744 not only has knots of galaxies, but the X-ray emitting hot gas (colored red) in the cluster appears distributed differently than the dark matter . ... Publications with keywords: galaxy cluster - dark matter - hot gas . ... The Hydra Cluster of Galaxies . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Monthly Sky Notes . ... Posted on January 30, 2012 | 1 Comment If you look towards the west just after sunset this February you will see a very bright star in the darkening sky. ... Continue Reading.. ... No Comments It?s BBC Stargazing Live month, so even more of us will be looking skyward this January. ... Posted on December 5, 2011 | 4 Comments Which is the brightest star in the sky (apart from the Sun)? ... Posted on November 17, 2011 | ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2011 June 29 . Abell 2744: Pandora's Cluster of Galaxies . Image Credit: NASA , ESA , J. Merten ( ITA , AOB ), D. Coe ( STScI ) . ... Far from a smooth distribution, Abell 2744 not only has knots of galaxies, but the X-ray emitting hot gas (colored red) in the cluster appears distributed differently than the dark matter . ... About APOD | ...

... galaxies: bulges galaxies: clusters: general galaxies: clusters: individual: . ... star formation statistics stellar content structure Cosmology ( cosmology :) cosmic background radiation ( cosmology :) cosmological parameters cosmology : miscellaneous cosmology : observations cosmology : theory ( cosmology :) dark ages, reionization, first stars ( cosmology :) dark energy ( cosmology :) dark matter ( cosmology :) diffuse radiation ( cosmology :) distance scale ( cosmology :) early Universe (...

... Bornancini, C., De Breuck, C., de Vries, W., Croft, S., van Breugel, W., Rottgering, H., Minniti, D. 2007 Monthly Notices of the Royal Astronomical Society, in press, Download . ... De Breuck, C., Downes, D., Neri, R., van Breugel, W., Reuland, M., Omont, A. Ivison, R. 2005 Astronomy Astrophysics Letters, 430, L1 . ... De Breuck, C., Bertoldi, F., Carilli, C., Omont, A., Venemans, B., Rottgering, H., Overzier, R., Reuland, M., Miley, G., Ivison, R. van Breugel, W. 2004 Astronomy Astrophysics, 424, 1...

... A Multi-Color Examination of the Andromeda Galaxy . ... Dr Caldwell is a member of the Optical and Infrared Astronomy Division which focuses on extragalactic and galactic astronomy emphasizing studies of the large-scale structure of the universe, clusters of stars and of galaxies. He will talk about two large observing projects which seek to understand the constituent stars and star clusters of the Andromeda galaxy (M31). ... Dec . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

... 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. ...

COLOR PRINT OF NGC 4881 AND PART OF THE SURROUNDING FIELD This photo mosaic, which shows a field of distant galaxies, is a computer enhanced reproduction of a picture taken 4 March 1994 with the repaired Hubble Space Telescope. ... It is a 13th-magnitude elliptical galaxy in the outskirts of the Coma Cluster, a great cluster of galaxies more than 5 times farther away than the Virgo Cluster. ... We must find that peak ("turnover") in NGC 4881 in order to judge the distance. ...

... We report on the preliminary results of experiments using a Bayesian cluster method to cluster objects present in photographic images of the POSS-II. ... We believe that the application of such algorithms to large-scale astronomical sky surveys can aid in cataloging the detected objects, and may even have the potential to discover new categories of objects. ... We have thus started to explore new clustering analysis and unsupervised classification techniques for this task. ...

Title: A Dark-Matter Spike at the Galactic Center? Authors: Piero Ullio , HongSheng Zhao , Marc Kamionkowski . ... Title: The Galaxy Environment of Quasars in the Clowes-Campusano Large Quasar Group at z~1.3 . ... Title: The Galaxy Environment of a Quasar at z=1.226: A Possible Cluster Merger . ... 16 matches for the search pattern galaxy environment . The URL for this page is: http://xxx.itep.ru/find/astro-ph/1/galaxy+environment/0/1/0/past,all/0/0 www-admin@xxx.lanl.gov ...

Find Similar Abstracts . ... The velocity of clusters of galaxies relative to the microwave background - The possibility of its measurement . ... 02/1980 . ... BACKGROUND RADIATION, GALACTIC CLUSTERS, MICROWAVE EMISSION, POLARIZED RADIATION, VELOCITY MEASUREMENT, BACKGROUND NOISE, COSMIC GASES, COSMOLOGY . ... 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 ...

Astronomers at Armagh Observatory and Cardiff University have independently discovered new mechanisms by which micro-organisms may have spread throughout the Galaxy. Scientific papers on the topic by Professor Bill Napier at Armagh, and by Dr Max Wallis and Professor Chandra Wickramasinghe at Cardiff University, will appear simultaneously in the Monthly Notices of the Royal Astronomical Society . ... Cardiff scientists Max Wallis and Chandra Wickramasinghe have identified another delivery route. ...

While engaged in the forenoon of Thursday, September 1, in taking my customary observation of the forms and positions of the solar spots, an appearance was witnessed which I believe to be exceedingly rare. The image of the sun's disk was, as usual with me, projected on to a plate of glass coated with distemper of a pale straw color, and at a distance and under a power which presented a picture of about 11 inches diameter. ... Exploration" home page (index) Glossary . Official GSFC Home Page .. ...