EGRET observations of gamma rays from point sources with galactic latitude +10 degrees<b<+40 degrees

被引：42

作者：

Nolan, PL

Bertsch, DL

Chiang, J

Dingus, BL

Esposito, JA

Fichtel, CE

Fierro, JM

Hartman, RC

Hunter, SD

Kanbach, G

Kniffen, DA

Lin, YC

Mattox, JR

MayerHasselwander, HA

Michelson, PF

vonMontigny, C

Mukherjee, R

Schneid, E

Sreekumar, P

Thompson, DJ

Willis, TD

机构：

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

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

[3] MAX PLANCK INST EXTRATERR PHYS,D-85748 GARCHING,GERMANY

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

[5] UNIV MARYLAND,DEPT ASTRON,COLLEGE PK,MD 20742

[6] NORTHROP GRUMMAN CORP,BETHPAGE,NY 11714

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 459卷 / 01期

关键词：

galaxies; active; nuclei; gamma rays; observations;

D O I：

10.1086/176872

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The EGRET instrument aboard the Compton Gamma Ray Observatory (CGRO) has completed the first all-sky survey in high-energy gamma rays and has repeatedly viewed selected portions of the sky. Analysis of the region with Galactic latitude +10 degrees < b < +40 degrees indicates the presence of 19 point sources, including nine that can be identified as active galactic nuclei (AGNs), some of which have been reported previously, as well as 10 other sources with no definite counterparts. Using the combined exposures from phases 1 and 2 of the CGRO viewing program, the spectra, time variability, and positions of all detected sources in this region are determined. It is tentatively suggested that one of the unidentified sources might be associated with the radio galaxy Centaurus A.

引用

页码：100 / 109

页数：10

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