The likelihood analysis of EGRET data

被引：1011

作者：

Mattox, JR

Bertsch, DL

Chiang, J

Dingus, BL

Digel, SW

Esposito, JA

Fierro, JM

Hartman, RC

Hunter, SD

Kanbach, G

Kniffen, DA

Lin, YC

Macomb, DJ

MayerHasselwander, HA

Michelson, PF

vonMontigny, C

Mukherjee, R

Nolan, PL

Ramanamurthy, PV

Schneid, E

Sreekumar, P

Thompson, DJ

Willis, TD

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,COMPTON OBSERV,SCI SUPPORT CTR,GREENBELT,MD 20771

[2] NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771

[3] UNIV SPACE RES ASSOC,SPACE ASTRON PROGRAM,WASHINGTON,DC

[4] UNIV TORONTO,CITA,TORONTO,ON M5S 1A1,CANADA

[5] CTR ASTROPHYS,CAMBRIDGE,MA 02138

[6] STANFORD UNIV,WW HANSEN EXPTL PHYS LAB,STANFORD,CA 94305

[7] MAX PLANCK INST EXTRATERR PHYS,W-8046 GARCHING,GERMANY

[8] HAMPDEN SYDNEY COLL,HAMPDEN SYDNEY,VA 23943

[9] GRUMMAN AEROSP CORP,BETHPAGE,NY 11714

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 461卷 / 01期

关键词：

gamma rays; observations; methods; data analysis; statistical;

D O I：

10.1086/177068

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The use of likelihood for the analysis of high-energy gamma-ray data from the EGRET instrument aboard the Compton Gamma-Ray Observatory is described. Maximum likelihood is used to estimate point-source flux densities, source locations, and background model parameters. The likelihood ratio test is used to determine the significance of point sources. Monte Carlo simulations have been done to confirm the validity of these techniques.

引用

页码：396 / 407

页数：12

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