... A Mystery in Gamma Rays . ... When the EGRET instrument on the orbiting Compton Gamma-ray Observatory surveyed the sky in the 1990s, it cataloged 271 celestial sources of high-energy gamma-rays. ... Many sources in this gamma-ray mystery map likely belong to already known classes of gamma-ray emitters and are simply obscured or too faint to be otherwise positively identified. ... Publications with keywords: gamma ray - unidentified sources - all sky . ... Solar Flare in the Gamma ray Sky . ...

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• Астронет > A Mystery in Gamma Rays
• Journal "Peremennye Zvezdy"
• XWare > APOD

Next: Publication Costs of Astronomical Research . ... Purple Mountain Observatory, Academia Sinica, Nanjing 210008, China, e-mail: library@nanjing.jspta.chinamail.sprint.com . This article includes a general overview of the Purple Mountain Observatory (PMO) followed by a description of the document resources held in the Observatory Library. ... The predecessor of the Observatory was the National Research Institute of Astronomy in the former Academia Sinica and its observing site, the PMO. ...

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• Astronomy Resources
• Administrative Newsletter
• Herschel Key Program Heritage: a Far-Infrared Source Catalog for the Magellanic

Next: Sample Properties Up: Sample Identification Previous: Comments on Individual Sources . Previously known serendipitous sources were selected by cross-correlating WGACAT with a variety of optical and radio catalogs, including the Ver?n-Cetty & Ver?n (1996) and Hewitt & Burbidge (1993) quasar catalogs, the 1 Jy (Stickel et al. 1994) and S4 (Stickel & K?hr 1994) radio catalogs, and the BL Lac catalog of Padovani & Giommi (1995b). ... Details of these 97 objects are given in Table 6. ...

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• ESO - New Release of Images and Source lists for VPHAS+
• ESO - Librarians' Professional Resources
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... 2004 April 3 . A Mystery In Gamma Rays . ... When the EGRET instrument on the orbiting Compton Gamma-ray Observatory surveyed the sky in the 1990s, it cataloged 271 celestial sources of high-energy gamma-rays. ... But 170 of the cataloged sources, shown in the above all-sky map, remain unidentified. Many sources in this gamma-ray mystery map likely belong to already known classes of gamma-ray emitters and are simply obscured or too faint to be otherwise positively identified. ... About APOD | ...

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• APOD: 2000 March 24 - A Mystery in Gamma Rays
• APOD: 2001 August 11 - A Mystery in Gamma Rays
• Sternberg Astronomical Institute

... Exoplanet Atmosphere and TTV Science , K. Collins at NASA Goddard, August 2011 . ... MAGPI , April 14, 2011 . The Southern Skies Digital Science Partnership , B. Carter, C. Brown, R. Hart, D. Foster, J. Kielkopf, and R. Moore (Astronomical Society of Australia, July 2007) . ... Kent Observatory , B. Carter, C. Brown, R. Duncan, D. Foster, R. Hart, J. Kielkopf, P. Martin, M. Mengel, R. Moore, S. Sinclair, K. Treschman, and I. Waite (Astronomical Society of Australia, July 2006) . ...

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• Moore Observatory Astronomical Software Resources

... The second catalog of high-energy gamma-ray observations from the Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Gamma Ray Observatory includes data from Phase 1 (1991 April - 1992 November) and Phase 2 (1992 November - 1993 September) of the mission. ... Also included are approximate upper limits for gamma-ray sources at any point in the sky and information about sources listed in the first EGRET catalog but not appearing in this one. gamma rays: general . ... Source Detections . ...

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• Group IAG
• The EGRET1 Survey
• RBSC-NVSS SAMPLE. I. RADIO AND OPTICAL IDENTIFICATIONS

... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Staff list | Student list | Visitor list . ... Publications overview . ... Email discussion lists . ... Careers overview . ... Murchison Radio-astronomy Observatory . ... Australia Telescope Online Archive (ATOA) . ... Arch | ... Virtual Radio Interferometer . ... This message : [ Message body ] [ More options ( top , bottom ) ] . ...

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• Radio Sources in the 2dF Galaxy Redshift Survey. I. Radio source populations1
• Matches with IRAS sources
• Australia Telescope National Facility

... 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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• PUBLICATIONS IN 1998
• PUBLICATIONS, 1996
• GRB follow-up team

... Proposing for VLBI Time at Arecibo . ... Documentation (Field System, VLBA4 terminal, Mark 5 system) . ... In 2001, the Arecibo Observatory received its hybrid VLBA-MARK IV (VLBA4) data acquisition system, and currently NAIC commits Arecibo to support VLBI observing up to a maximum of 4% of the 305-m's observing time. ... Tracking Time (h:mm) . ... The inclusion of the 305-m Arecibo radio telescope can dramatically boost the sensitivity of VLBI observations, even with its limited source tracking...

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• National Astronomy and Ionosphere Center (Arecibo Observatory)
• Spectrum Management and RFI Group-Home Page at Arecibo Observatory
• NAIC Statement and Implementation Plan

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Sky Charts . ... UK astronomy . ... History of Astronomy . ... Astrophysics in Cyberspace . ... The Sky Tonight from the Schools Observatory . The Sky over Armagh . ... Royal Astronomical Society . ... Cork Astronomy Club . ... Links to more Journals . ... Astronomy Now . ... History of Armagh Observatory . ... Society for the History of Astronomy (UK) . American Astronomical Society - Historical Astronomy Division . ...

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• Armagh Observatory
• Performance
• Freedom of Information, Armagh Observatory

... This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). ... Earliest source: "[Observatory women computers], 1891." ... A group photo of computers at Harvard together with Mary Anna Palmer Draper, aka Mrs. Henry Draper. ... 1891 . General: The women depicted in this photograph analyized stellar photographs and computed data at the Harvard College Observatory. [link] 1891 . ...

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• ChaMPlane apj_appendix
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• The AstroStat Slog Blog Archive [ArXiv] Matching Sources, July 11, 2007

1000 of these sources, however, remains a mystery; these are the so-called unassociated gamma-ray sources, with no known astrophysical counterpart at any other wavelength. While many LAT unassociated sources likely belong to known classes of objects (e.g. pulsars), a more exotic origin for some of these sources is also possible (e.g. dark matter annihilation). ... These results will aid further studies and follow-up observations of LAT unassociated sources. ...

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• Designated Observatory Application
• Marc White - Astrophysicist - The Australian National University
• Designated Observatory Registry

PUL VLBI Analysis Center . ... IVS : International VLBI Service for Geodesy and Astrometry . ... An IVS VLBI Analysis Center at the Central Astronomical Observatory at Pulkovo of the Russian Academy of Sciences, also widely known as Pulkovo Observatory, has been organized in September 2006. ... The center is a part of the Pulkovo EOP and Reference Systems Analysis Center (PERSAC) . ... Results of VLBI data analysis can be found at Pulkovo EOP and Reference Systems Analysis Center (PERSAC) page. ...

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• Pulkovo Observatory

... American Astronomical Society . AstroWeb: Astronomy/Astrophysics on the Internet . ... NASA Astrophysics Data System: Abstract Service . ... Astronomy Astrophysics: Preprints Abstracts . ... Local archive of IAU Circulars. ... Germany, list of all Astronomical Institutes . ... Poland, Warsaw University Astronomical Observatory . Russia, Sternberg Astronomical Institute . ... Russia, Institute of Astronomy, Russian Academy of Sciences . ... USA, Astronomy and Space Science Group at GMU . ...

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• Evolution of the Double Neutron Star Merging Rate andthe Cosmological Origin of
• Be/X-ray binaries and candidates
• Scientific Interests

lsst.coordConv   unknown . ... Files . ... include . ... physConst.h . ... 17   const double Pi = std::atan(1.0)*4; . 18   const double HoursPerDeg = 24.0 / 360.0; // hours per degree . 19   const double RadPerDeg = Pi / 180.0; // radians per degree . 20   const double KmPerAU = 149597871.0; // kilometers per astr. unit (Astr. ... 38   // const double JY_per_BY = 36524.2198781 / 36525.0; // Julian years per Besselian (troPical) Years (Taff) . ... Definition: physConst.h:26 . ...

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• APO Home Page
• lsst.coordConv: include/coordConv/site.h Source File
• lsst.coordConv: src/site.cc Source File

home resources > books . SEARCH ASP SITE: Match ALL words Match ANY word . ... Buy The Black Hole at the Center of our Galaxy at Amazon.com! Reviewed by Terrell Kent Holmes . In 1974 astronomers discovered a bright radio source at the center of the Milky Way Galaxy, in the direction of the constellation Sagittarius. It was an unknown quantity then, but astronomers now know that the object is a supermassive black hole causing a maelstrom of activity at the galactic center. ...

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• ASP: ComPADRE: Communities of Physics and Astronomy Digital Resources in
• ASP: National Astronomy Education Projects
• ASP: Black Holes: An Introductory Resource List

... General information . ... Research staff . ... Star formation . ... Origin of Lyman excess in early-type stars R. Cesaroni, A. Sanchez-Monge, M.T. Beltran, S. Molinari, L. Olmi, S.P. Trevino-Morales 2016, A&A Letters, in press . Star and jet multiplicity in the high-mass star forming region IRAS05137+3919 R. Cesaroni, F. Massi, C. Arcidiacono, M.T. Beltran, P. Persi, M. Tapia, S. Molinari, L. Testi, L. Busoni, A. Riccardi, K. Boutsia, S. Bisogni, D. McCarthy, C. Kulesa 2015, A&A, 581, A124 . ...

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• Resources and catalogs
• On line Resources
• Other WWW Astronomy Resources

... 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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• VO Resources
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• ADASS 2003 Conference Proceedings

... Chapter 1. ... Problems of observational radio cosmology (6) . ... Analysis of radio astronomical data (32) . ... Data analysis system (33) . ... Actuality, goals and results to depend (45) . ... Interactive processing of continuum radio spectra of radio sources (72) . ... Creation of the astrophysical catalogs data base CATS and its application for selection and analysis of radio galaxy samples (112) . ... Data and methods (176) . ... Results of analysis of known radio galaxies data (179) . ...

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• Identification of RC-catalog sources
• Source Parameters from the Steep Spectrum Subset of RC Catalog
• Radio Sources Parameters

... More information on books, telescopes, clubs, etc. is available in the Getting Started section. ... For more information call 617-495-7461. Boston University Astronomy Department - Public telescopic observing is held every clear Wednesday night. ... Boston Museum of Science - For more information and admission prices call 617-723-2500. ... For information and admission prices call 508-929-2700. ... Springfield Telescope Makers , VT. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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