Quasars

Results: 73



#Item
41Astronomers using Hubble discover quasars acting as gravitational lenses

Astronomers using Hubble discover quasars acting as gravitational lenses

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Source URL: phys.org

Language: English - Date: 2015-02-12 07:18:48
42Quasars/AGN with WFIRST: Science Goals vs. Performance Xiaohui Fan University of Arizona  Quasar Surveys

Quasars/AGN with WFIRST: Science Goals vs. Performance Xiaohui Fan University of Arizona Quasar Surveys

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Source URL: conference.ipac.caltech.edu

Language: English - Date: 2014-11-18 19:51:52
43D RAFT VERSION AUGUST 19, 2014 Preprint typeset using LATEX style emulateapj v[removed]WEAK HARD X-RAY EMISSION FROM BROAD ABSORPTION LINE QUASARS: EVIDENCE FOR INTRINSIC X-RAY WEAKNESS B. L UO , 1,2 W. N. B RANDT, 1,2 D

D RAFT VERSION AUGUST 19, 2014 Preprint typeset using LATEX style emulateapj v[removed]WEAK HARD X-RAY EMISSION FROM BROAD ABSORPTION LINE QUASARS: EVIDENCE FOR INTRINSIC X-RAY WEAKNESS B. L UO , 1,2 W. N. B RANDT, 1,2 D

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Source URL: www.nustar.caltech.edu

Language: English - Date: 2014-09-29 15:19:23
44HUBBLE SPACE TELESCOPE IMAGES OF A SAMPLE OF TWENTY NEARBY LUMINOUS QUASARS a John N. Bahcall, Sofia Kirhakos, and David H. Saxe, Institute for Advanced Study, School of Natural Sciences, Princeton, NJ[removed]Donald P. Sc

HUBBLE SPACE TELESCOPE IMAGES OF A SAMPLE OF TWENTY NEARBY LUMINOUS QUASARS a John N. Bahcall, Sofia Kirhakos, and David H. Saxe, Institute for Advanced Study, School of Natural Sciences, Princeton, NJ[removed]Donald P. Sc

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Source URL: www.sns.ias.edu

Language: English - Date: 2002-05-22 12:03:33
45HEIC0511: FOR RELEASE 19:00 (CEST)/1:00 PM EDT 14 September, 2005 News release: Black hole in search of a home 14-September-2005 The detection of a super massive black hole without a massive host galaxy is the surprising

HEIC0511: FOR RELEASE 19:00 (CEST)/1:00 PM EDT 14 September, 2005 News release: Black hole in search of a home 14-September-2005 The detection of a super massive black hole without a massive host galaxy is the surprising

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Source URL: www.spacetelescope.org

Language: English - Date: 2005-09-13 06:21:13
46Space / Quasars / Radio astronomy / HE0450-2958 / European Southern Observatory / Active galactic nucleus / Spiral galaxy / Galaxy / Very Large Telescope / Astronomy / Supermassive black holes / Extragalactic astronomy

 HEIC0511: FOR RELEASE 19:00 (CEST)/1:00 PM EDT 14 September, 2005 News release:

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Source URL: www.spacetelescope.org

Language: English - Date: 2005-09-13 06:21:31
47107  How Many Quasars Are There? Quasars are among the most luminous galaxies in the universe, and because of this, astronomers can detect them to great distances

107 How Many Quasars Are There? Quasars are among the most luminous galaxies in the universe, and because of this, astronomers can detect them to great distances

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Source URL: spacemath.gsfc.nasa.gov

Language: English - Date: 2009-12-29 23:09:42
48Chandra X-Ray Observatory  X-Ray Astronomy Field Guide Quasars are peculiar objects that radiate as much energy per second as a thousand or more galaxies, from a region that has a diameter about

Chandra X-Ray Observatory X-Ray Astronomy Field Guide Quasars are peculiar objects that radiate as much energy per second as a thousand or more galaxies, from a region that has a diameter about

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Source URL: chandra.si.edu

Language: English - Date: 2008-01-29 13:13:38
49Chandra X-Ray Observatory  X-Ray Astronomy Field Guide Quasars are peculiar objects that radiate as much energy per second as a thousand or more galaxies, from a region that has a diameter about

Chandra X-Ray Observatory X-Ray Astronomy Field Guide Quasars are peculiar objects that radiate as much energy per second as a thousand or more galaxies, from a region that has a diameter about

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Source URL: www.chandra.harvard.edu

Language: English - Date: 2008-01-29 13:13:38
50Studying	
  emission	
  mechanisms	
   of	
  AGN	
   ©NASA	
    Dr.	
  Karsten	
  Berger	
  

Studying  emission  mechanisms   of  AGN   ©NASA   Dr.  Karsten  Berger  

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Source URL: fermi.gsfc.nasa.gov

Language: English - Date: 2013-06-20 13:37:45