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Preliminary Results from a New Analysis Method for EGRET DataIn 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.
Document ID
20000026344
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Thompson, D. J. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Bertsch, D. L. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Hunter, S. D. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Deines-Jones, P. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Dingus, B. L. (Utah Univ. Salt Lake City, UT United States)
Kniffen, D. A. (NASA Headquarters Washington, DC United States)
Sreekumar, P. (Indian Space Research Organization Bangalore, India)
Date Acquired
August 19, 2013
Publication Date
January 1, 1999
Publication Information
Publication: EGRET Team Papers to be Published in the Proceedings of the Fifth Compton Symposium
Subject Category
Space Radiation
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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IDRelationTitle20000026337Collected WorksEGRET Team Papers to Be Published in the Proceedings of the Fifth Compton Symposium
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