The Fermi All-sky Variability Analysis: A list of flaring gamma-ray sources and the search for transients in our Galaxy
Collaboration
29 pages
Published in:
- Astrophys.J. 771 (2013) 57
- Published: Jul 1, 2013
e-Print:
- 1304.6082 [astro-ph.HE]
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Abstract: (IOP)
In this paper, we present the Fermi All-sky Variability Analysis (FAVA), a tool to systematically study the variability of the gamma-ray sky measured by the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. For each direction on the sky, FAVA compares the number of gamma-rays observed in a given time window to the number of gamma-rays expected for the average emission detected from that direction. This method is used in weekly time intervals to derive a list of 215 flaring gamma-ray sources. We proceed to discuss the 27 sources found at Galactic latitudes smaller than 10° and show that, despite their low latitudes, most of them are likely of extragalactic origin.Note:
- Accepted for publication in ApJ, 29 pages, 6 figures. Contact authors: Rolf Buehler, Marco Ajello, Alice Allafort
- binaries: general
- BL Lacertae objects: general
- catalogs
- galaxies: active
- stars: flare
- surveys
References(64)
Figures(6)