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Title:
Analysis methods for results in gamma-ray astronomy
Authors:
Li, T.-P.; Ma, Y.-Q.
Affiliation:
AA(Chinese Academy of Sciences, High Energy Physics Institute, Beijing, People's Republic of China), AB(Chinese Academy of Sciences, High Energy Physics Institute, Beijing, People's Republic of China)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 272, Sept. 1, 1983, p. 317-324. (ApJ Homepage)
Publication Date:
09/1983
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
GAMMA RAY ASTRONOMY, STATISTICAL ANALYSIS, CONFIDENCE LIMITS, MAXIMUM LIKELIHOOD ESTIMATES, MONTE CARLO METHOD
DOI:
10.1086/161295
Bibliographic Code:
1983ApJ...272..317L

Abstract

The procedures in current use for analyzing the results of gamma-ray astronomy experiments are assessed. Two formulas are proposed for estimating the significance of positive observations in searching gamma-ray sources or lines. The correctness of the formulas is tested with the aid of Monte Carlo simulations. One formula is derived by immediately estimating the standard deviation of the observed signal NS; the other is derived by applying the method of the statistical hypotheses test.

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