Abstract
The third EGRET catalog contains ~ 170 unidentified high energy gamma-ray point sources. Here we report that this group contains two populations with different spatial distributions, flux distributions and spectral properties. A cluster of ~ 20 sources lies just north of the Galactic Center and is part of a larger population of faint objects at mid-latitudes. We show that these mid-latitude sources are distinct from the population of bright sources found at lower latitudes. The spatial distribution of the mid-latitude population suggests a Gould belt origin.
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© 2001 Springer Science+Business Media Dordrecht
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Gehrels, N., Macomb, D.J., Bertsch, D.L., Thompson, D.J., Hartman, R.C., Mattson, B.J. (2001). Population Studies of Unidentified High-Energy Gamma-Ray Sources. In: Carramiñana, A., Reimer, O., Thompson, D.J. (eds) The Nature of Unidentified Galactic High-Energy Gamma-Ray Sources. Astrophysics and Space Science Library, vol 267. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-1007-8_6
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DOI: https://doi.org/10.1007/978-94-010-1007-8_6
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-3875-1
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