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• A VLA Survey of Rich Clusters of Galaxies III
• A VLA Survey of Rich Clusters of Galaxies I.
• A 20 cm VLA survey of Abell clusters of galaxies

... Color-Magnitude Diagrams Triangles: objects located less than 30" from cluster center Squares: objects located less than 60" from cluster center Dots: field objects (more than 150" from center) Hollow symbols: stars Highlighted: the red sequence for each cluster Observed in the Near Infrared .. ... BCG magnitude X = clusters presented here O = clusters in literature with 0.8<z<1.2 5 of 10 x-ray sources were confirmed with a red sequence detection RXJ1205 Color suggests redshift about 1. ...

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• Understanding Radio-selected Thermal Sources in M33: Ultraviolet, Optical,
• Managing Your Disk Space
• Target Count Rates

Quick guide for ChaMPlane Database Searching sources by coordinates [left panel ]: select the coordinate (e.g RA=337.3831880 , Dec=61.2185250 , Radius=2 ) [right panel ]: display the results Browsing by ObsID [left panel ]: list available observations by ObsID [middle panel ]: list available data product for the selected ObsID [upper right panel ]: list the data by srcid [lower right X-ray source ID is defined as XS + x-ray ObsID + energy band + CCD ID + source number. ...

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• The Chandra Multiwavelength Project (ChaMP)
• Chandra Images for G076.9+01.0
• Chandra Images for G332.4-00.2

Astronomy Picture of the Day . The X-ray Sources of M31 . ... 31.12.1995 . ... Credit Copyright: ROSAT , MPE , NASA Explanation: Just like our own Milky Way Galaxy , the nearest major galaxy M31 has many star systems spewing high energy radiation . ... The X-ray sources in M31 occur in globular clusters , the spiral arms , and near the galaxy's center. ... M31 has more X-ray sources near its center than our Galaxy, and the reason for this is currently unknown. ... December 1995 . ... 1995 1996 . ...

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• Астронет > The X-ray Sources of M31
• A Note on the Perseus Cluster
• XWare > APOD

... Staff . ... Galaxies, AGN, Cosmology . ... A new survey of X-ray clusters of galaxies with the Swift-X-ray Telescope . ... In this framework, an international collaboration between INAF-OAA, INAF-Brera, INAF-OATs, the University for Science and Technology of China-Hefei, the University of Ferrara, and the University of Massachusetts-Amherst, is undertaking a new cluster survey using an X-ray facility that was never exploited before for this goal: the X-ray Telescope (XRT) onboard the Swift satellite...

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• Serpmap (Abstract)
• Arcetri Astrogallery - Stellar Clusters (15/24)
• Kernel source code

... Ultraluminous X-ray sources (ULXs) are located in external galaxies, their X-ray luminosities (10 39 - 10 41 erg/s) are thousand times greater than those of brightest black holes in the Galaxy. ULXs may be supercritical accretion disks around black holes of stellar masses (~10 Solar masses) like that in SS433, or they may be a hypothetical intermediate-mass black holes (hundreds - thousands Solar masses) with standard accretion disks. ... 2) The ULX progenitors were ejected from the star clusters. ...

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• Study of radio spectra and variability of GPS sources
• Detection of polarized radiation sources with unusual spectral characteristics
• Detection of Radio Transients and Variable Radio Sources Using the Archive Data

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

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• SAI OCL Catalog Virtual Observatory
• SAI OCL Catalog The Team

... The overall globular cluster population is divided by gap in the metallicity function at [Fe/H]=-1.0 into two discrete groups with well-defined maxima at [Fe/H]=-1.60?0.03 dex, and -0.60?0.04 dex. ... Clusters with extremely blue horizontal branches occupy a spherical volume of radius ~ 9 kpc, have high rotational velocities ( V rot =77?33 km/s), have substantial and equal negative radial and vertical metallicity gradients, and are, on average, the oldest group (the old-halo subsystem). ...

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... User submits a job to the master host 2. ... Execution hosts execute the job Users can: ·specify minimum requirements ( e.g number of nodes , memory available etc.) ·assign the start time of the job ·Assign job priorities (requires right to do so) There are numerous DRM systems available ( e.g . Torque) OGE (at least theoretically) meets all DiFX requirements OGE is very well documented OGE is very simple to install (part of RHEL and many other distributions) ...

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• Arch Intranet Search Engine - Open source, enterprise strength, fast and easy
• Targeted searches
• ATNF Colloquium

... Astrophysics Group . ... AMI Science . ... Observations of galaxy clusters are central to the AMI science programme. The AMI Small Array is used to observe already-known clusters with high-sensitivity and resolution, allowing us to extract detailed information about individual clusters and to build up statistics about the cluster population. ... Observing galaxy clusters at 15 GHz is tricky because of the contamination from foreground radio sources, which is where the Large Array comes in! ...

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• Galaxy Evolution: Radio sources and their environments
• Monitoring of variable sources at 15 GHz
• Astrophysics Group 10C

Next: CORRELATOR BOARDS Up: OBSERVING PROCEDURES Previous: Frequency Switching . ... Continuum sources in the list used for flux density calibration were selected in an ad-hoc fashion from a variety of places, but primarily from Kuehr et al (A&AS, 45, 367, 1981), the compendium of linearly polarized sources by Tabara & Inoue (A&AS, 39, 379, 1980), and an unpublished list of unconfused calibrator sources prepared from the NVSS survey by Jim Condon and Qi Feng Yin. ... Board 0 . ...

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• Targeted Classes of Pulsars
• VLBI at Arecibo Observatory
• Computing LST Rise and Set Times at AO

home education > resources . SEARCH ASP SITE: Match ALL words Match ANY word . ... The Universe in . ... http://cosmictimes.gsfc.nasa.gov/ (James Lochner and Barbara Mattson have compiled a rich resource of 20th-century cosmology history in the form of news reports on key events) . ... Sean Carroll (Caltech): The Origin of the Universe and the Arrow of Time (Aug. ... Adam Reiss (STScI): Dark Energy and the Fate of the Universe (March 7, 2006 at the Space Telescope Science Institute): . ...

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• ASP: NGC Images on the Net
• ASP: The Astronomy of Many Cultures: A Resource Guide
• ASP: Night Sky Adventure: Print and Web Resources for Families

The Astronomy Net . Articles | AstroGuide | ... Forums . ... H ere you can find resouces to help understand perhaps the grandest of all sciences. ... Upcoming Sky Events . ... This site includes lists of manufacturers, vendors, software, etc. organized in the AstroGuide to help when you are looking to purchase your tools. ... Astronomy Articles . ... Are you interested in writing an article for the Astronomy Net? ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• The Sun Energy Source Is Not Nuclear Fusion But Magnetic Fields. - an Astronomy
• Black Holes As A Source Of Dark Matter/energy? - an Astronomy Net Blackholes2

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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• APOD: December 31, 1995 - The X-ray Sources of M31
• Index of /groups/cluster/CEP/RADVEL
• Sources

... Public . Science . ... Science Users Information > Science Publications > Science Announcements > New Release of Images and Source lists for VPHAS+ . ... Observing with ESO Telescopes . ... New VST Public Survey data products resulting from the VST Photometric HЮБ Survey of the Southern Galactic Plane (VPHAS+) are now available via the dedicated Phase 3 query interface at the Science Archive Facility . ... The VPHAS+ public survey data release is accompanied by a comprehensive description . ...

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• ESO - Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm
• ESO - Science Announcements
• ESO - Release of Stacked Images and Source Lists for VST ATLAS Public Survey

... LABORATORY OF RADIO ASTRONOMICAL OBSERVATIONS . Radio sources identification is one of the most important tasks of the current radio astrophysics. ... Optical idetification. ... Optical identifications of subsample of steep spectra radio sources from RC catalog using 6m SAO telescope of SAO RAS: optical observations. ... Astronomy Reports. ... Identification of radio sources with data of various radio catalogs allows one to construct continual spectrum of the object and its radio structure. ...

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• Linux Device Drivers, 2nd Edition: Bibliography
• SCORPIO: IFP Gallery
• Make macros

intro , disclaimer , faq & g-list , mailing lists , usenet , www , gopher , ftp & mail-ftp , credits ] . There are a lot of resources on the net available to Gravis Ultrasound ("GUS") users. ... GUS Forum . GUS MIDI FAQ WWW page . ... Australia . Australia alternate . ... James Andrews ( james@maths.ex.ac.uk ) : GUS MIDI FAQ WWW page . ... Lee McLoughlin ( lmjm@doc.ic.ac.uk ) : European FTP site and WWW page . ... Matt Perkins ( matt@poodle.mpx.com.au ) : Australian FTP site and WWW page . ...

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• Texas Survey of radio sources at 365MHz

Searching for Ultra Compact Binaries in Globular Clusters What Are Ultra Compact Binaries? ... An ultra compact binary is a binary that consists two white dwarf To source the FITS files that contained the UV images, the sky coordinates stars and has an orbital period shorter than ~70min (A binary and the details on brightness for each star in each globular cluster we were consists of two stars orbiting around their centre of mass, it enables investigating, we used the XMM online archive. ...

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• More photos available now! | OASES Over us All is the SElfsame Sky | OASES 2010
• Armagh Observatory: Chris Winter [ Bookmarks ]
• Atomic data for Stellar Atmospheres: lte_lines

... R. E. Jackson . ... H.-M. Adorf . ... D. C. Wells . ... AstroWeb is a World Wide Web (WWW) interface to a collection of Internet accessible resources aimed at the astronomical community. ... The goal of AstroWeb is to be the most complete, up to date, and useful listing of Internet accessible astronomical resources available anywhere. ... Jackson, Wells, and Adorf noticed that they and others had created largely overlapping lists of Astronomical resources. ...

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• A New PROS Task for Calculating HRI Source Intensities or Upper Limits
• An Extragalactic Point Source Simulator for SIRTF Pipeline Testing
• Access to Data Sources and the ESO SkyCat Tool

scripts · Made a comparison with SCISIM ray trace that replicates each observation Main Analysis Steps · Select regions for each camera and run esas · Extract spectra and background · Made an . arf that is a guess for typical off axis angle ( fn(E) knowing only a single reflection occurs ) · Assume source spectrum of a LMXRB e.g. const*phabs*(diskbb+comptt) probably the detailed spectrum doesn't matter to 1st order · Also require an ...

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• Cross References to In-Flight Calibration Targets
• Generation from In-Orbit Data
• XMM-Newton Extended Source Analysis Software