HIGH-ENERGY GAMMA-RAYS FROM PKS-1406-076 AND THE OBSERVATION OF CORRELATED GAMMA-RAY AND OPTICAL-EMISSION

被引：46

作者：

WAGNER, SJ

MATTOX, JR

HOPP, U

BOCK, H

HEIDT, J

BERTSCH, DL

DINGUS, BL

FICHTEL, CE

HARTMAN, RC

HUNTER, SD

KANBACH, G

KNIFFEN, DA

LIN, YC

MAYERHASSELWANDER, HA

MICHELSON, PF

VONMONTIGNY, C

NOLAN, PL

SREEKUMAR, P

THOMPSON, DJ

机构：

[1] UNIV MARYLAND,COLLEGE PK,MD 20742

[2] UNIV SPACE RES ASSOC,ASTROPHYS PROGRAM,WASHINGTON,DC

[3] MAX PLANCK INST ASTRON,D-69117 HEIDELBERG,GERMANY

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

[5] MPE,D-85740 GARCHING,GERMANY

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

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

来源：

ASTROPHYSICAL JOURNAL | 1995年 / 454卷 / 02期

关键词：

GALAXIES; ACTIVE; JETS; GAMMA RAYS; OBSERVATIONS; THEORY; QUASARS; INDIVIDUAL; (PKS; 1406; -076); RADIATION MECHANISMS; NONTHERMAL;

D O I：

10.1086/309776

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report simultaneous observations of the optically violent variable (OVV) quasar PKS 1406-076 in the optical and gamma-ray regime. Gamma-ray emission is detected with very high significance. Both the gamma-ray and optical properties of PKS 1406-076 are typical for the group of gamma-bright active galactic nuclei detected by EGRET. During 1993 January the source was unusually bright in both frequency ranges. During this period we observed a rapid, symmetrical flare in the optical wavelength range which lasted for about 4 days. EGRET detected a similar rapid flare peaking about 22 hr after the optical outburst. Because such rapid flares are rare events, it is likely that the outbursts in the two frequency regimes are correlated. Correlated outbursts with similar profiles and a lag between the optical and gamma-ray maxima of 22 hr are inconsistent with simple versions of models suggested for the emission of high-energy radiation from blazars.

引用

页码：L97 / L100

页数：4

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