Hunting for Treasures among the Fermi Unassociated Sources: A multiwavelength Approach
Abstract
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 2013
- DOI:
- 10.1088/0004-637X/779/2/133
- arXiv:
- arXiv:1310.6735
- Bibcode:
- 2013ApJ...779..133A
- Keywords:
-
- galaxies: active;
- gamma rays: general;
- pulsars: general;
- quasars: general;
- radio continuum: galaxies;
- ultraviolet: galaxies;
- X-rays: galaxies;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 9 pages, 2 figures, 1 Table. Accepted for publication in ApJ