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arXiv · 1310.6735

Hunting for treasures among the Fermi unassociated sources: a multi-wavelength approach

F. Acero·D. Donato·R. Ojha·J. Stevens·P. G. Edwards·E. Ferrara·J. Blanchard·J. E. J. Lovell·D. J. Thompson
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Abstract

The Fermi Gamma-ray Space Telescope has been detecting a wealth of sources where the multi-wavelength counterpart is either inconclusive or missing altogether. We present a combination of factors that can be used to identify multi-wavelength 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 gamma-ray observations. As a result, four of these sources are candidates to be active galactic nuclei (AGN), and one to be a pulsar, while two do not fit easily into these known categories of sources. The latter pair of extra-ordinary sources might reveal a new category subclass or a new type of gamma-ray emitters. These results altogether demonstrate the power of a multi-wavelength approach to illuminate the nature of unassociated Fermi sources.

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F. Acero, D. Donato, R. Ojha, J. Stevens, P. G. Edwards, E. Ferrara, J. Blanchard, J. E. J. Lovell, D. J. Thompson. 2013-10-23. Hunting for treasures among the Fermi unassociated sources: a multi-wavelength approach. https://doi.org/10.1088/0004-637x/779/2/133

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