Hunting for New Gamma-ray Binaries - Technique Development

Details Hunting for New Gamma-ray Binaries - Technique Development Hunting for New Gamma-ray Binaries - Technique Development

2010-01-26

arxiv.org/abs/1001.4718v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

Proceedings of the 2009 Fermi Symposium. eConf Proceedings C091122

Scientific paper

There are only a few sources that are definitely known to be gamma-ray binaries. Two of these are listed as associations in the Fermi LAT Bright Source List. We are developing novel techniques to extract high signal-to-noise light curves of all cataloged Fermi sources and to search for periodic variability using appropriately weighted power spectra. The detection of periodic variability would be strong evidence for the detection of a new gamma-ray binary. The LAT's sensitivity provides the opportunity to open up completely new discovery space for additional binary systems, potentially involving novel astrophysics. We present here demonstrations of the sensitivity gains obtained through the use of these techniques.

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