DETECTION OF HIGH-ENERGY GAMMA-RAYS FROM BL LAC PKS 0235+164 BY THE EGRET TELESCOPE ON THE COMPTON OBSERVATORY

Authors
HUNTER SD BERTSCH DL DINGUS BL FICHTEL CE HARTMAN RC KANBACH G KNIFFEN DA KWOK PW LIN YC MATTOX JR MAYERHASSELWANDER HA MICHELSON PF VONMONTIGNY C NOLAN PL SCHNEID E SREEKUMAR P THOMPSON DJ
Citation
Sd. Hunter et al., DETECTION OF HIGH-ENERGY GAMMA-RAYS FROM BL LAC PKS 0235+164 BY THE EGRET TELESCOPE ON THE COMPTON OBSERVATORY, Astronomy and astrophysics, 272(1), 1993, pp. 59-62
Citations number
47
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
272
Issue
1
Year of publication
1993
Pages
59 - 62
Database
ISI
SICI code
0004-6361(1993)272:1<59:DOHGFB>2.0.ZU;2-F
Abstract
The BL Lac object PKS 0235+164 was observed with the Energetic Gamma R ay Telescope Experiment (EGRET) on the Compton Observatory from Februa ry 20, 1992 to March 5, 1992. During this period, PKS 0235+164 was det ected with a flux level above 100 MeV of (8.0 +/- 1.2) x 10(-7) photon s cm-2 s-1. The spectra is well represented by a power law with spectr al index 1.85 +/- 0.19. During this observation there is no evidence f or time variation of the flux.