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Title: Hunting for treasures among the Fermi unassociated sources: A multiwavelength approach

The Fermi Gamma-Ray Space Telescope has been detecting a wealth of sources where the multiwavelength counterpart is either inconclusive or missing altogether. We present a combination of factors that can be used to identify multiwavelength counterparts to these Fermi unassociated sources. This approach was used to select and investigate seven bright, high-latitude unassociated sources with radio, UV, X-ray, and γ-ray observations. As a result, four of these sources are candidates to be active galactic nuclei, and one to be a pulsar, while two do not fit easily into these known categories of sources. The latter pair of extraordinary sources might reveal a new category subclass or a new type of γ-ray emitter. These results altogether demonstrate the power of a multiwavelength approach to illuminate the nature of unassociated Fermi sources.
Authors:
;  [1] ; ;  [2] ;  [3] ;  [4] ; ;  [5] ;  [6]
  1. ORAU/NASA Goddard Space Flight Center, Astrophysics Science Division, Code 661, Greenbelt, MD 20771 (United States)
  2. CRESST/NASA Goddard Space Flight Center, Astrophysics Science Division, Code 661, Greenbelt, MD 20771 (United States)
  3. CSIRO Astronomy and Space Science, Locked Bag 194, Narrabri NSW 2390 (Australia)
  4. CSIRO Astronomy and Space Science, P.O. Box 76, Epping NSW 1710 (Australia)
  5. University of Tasmania School of Mathematics and Physics, Private Bag 37, Hobart TAS 7001 (Australia)
  6. NASA Goddard Space Flight Center, Astrophysics Science Division, Code 661, Greenbelt, MD 20771 (United States)
Publication Date:
OSTI Identifier:
22348410
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 779; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; GALAXY NUCLEI; GAMMA RADIATION; PULSARS; QUASARS; SPACE; TELESCOPES; ULTRAVIOLET RADIATION; X RADIATION; X-RAY GALAXIES