EGRET OBSERVATIONS OF ACTIVE GALACTIC NUCLEI - 0836-234, 0804+499, 0906+430, 1510-089, AND 2356+196(710, 0454)

Authors
THOMPSON DJ BERTSCH DL DINGUS BL FICHTEL CE HARTMAN RC HUNTER SD KANBACH G KNIFFEN DA LIN YC MATTOX JR MAYERHASSELWANDER HA MICHELSON PF VONMONTIGNY C NOLAN PL SCHNEID EJ SREEKUMAR P
Citation
Dj. Thompson et al., EGRET OBSERVATIONS OF ACTIVE GALACTIC NUCLEI - 0836-234, 0804+499, 0906+430, 1510-089, AND 2356+196(710, 0454), The Astrophysical journal, 415(1), 1993, pp. 120000013-120000016
Citations number
42
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
415
Issue
1
Year of publication
1993
Part
2
Pages
120000013 - 120000016
Database
ISI
SICI code
0004-637X(1993)415:1<120000013:EOOAGN>2.0.ZU;2-J
Abstract
The Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Ga mma Ray Observatory observed high-energy gamma rays (50 MeV less-than- or-equal-to E less-than-or-equal-to 2000 MeV) from quasar 0836+710 (z = 2.16) during observations in 1992 January, near the time of an optic al flare (von Linde et al. 1993). The gamma-ray spectrum can be fitted with a power law with photon number index 2.4 +/- 0.2. EGRET identifi es quasars 0454-234, 0804+499, 0906+430, 1510-089, and 2356+196 at a s tatistical significance of between 4 and 5 standard deviations.