Preliminary Results from a New Analysis Method for EGRET Data
D. J. Thompson, D. L. Bertsch, S. D. Hunter, P. Deines-Jones
B. Dingus
D. A. Kniffen
P. Sreekumar
Abstract
In order to extend the life of EGRET, the gas in the
spark chamber was allowed to deteriorate more than was originally planned for
the nominal two year Compton Observatory mission. Gamma ray events are lost
because the pattern recognition analysis rules are not optimized for the
poorer quality data. By changing the rules used by the data analysts, we can
recover a significant fraction of the lost events, allowing improved
statistics for detection and study of sources. Preliminary results from the Crab, Geminga, and BL Lacertae indicate the feasibility of this analysis.
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On 16 Jul 1999, 09:19.