A SEARCH FOR TEV EMISSION FROM CYGNUS-X-3

被引：24

作者：

OFLAHERTY, KS

CAWLEY, MF

FEGAN, DJ

LAMB, RC

LANG, MJ

LEWIS, DA

PUNCH, M

REYNOLDS, PT

VACANTI, G

WEEKES, TC

机构：

[1] ST PATRICKS COLL,DEPT PHYS,MAYNOOTH,KILDARE,IRELAND

[2] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS & ASTRON,AMES,IA 50011

[3] HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 396卷 / 02期

关键词：

GAMMA-RAYS OBSERVATIONS; STARS INDIVIDUAL (CYG-X-3);

D O I：

10.1086/171748

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Cygnus X-3 has been observed during 1988-1990 by the Whipple Observatory collaboration using the 109 pixel high-resolution gamma-ray imaging telescope. The data recorded has been analyzed to search for (a) steady emission of TeV gamma-rays, (b) 4.8 hr modulation of the gamma-ray light curve, and (c) periodic emission at 12.59 ms. No evidence is found for emission based on these searches. The upper limit (3-sigma) for long-term steady emission is 3.5 x 10(-12) photons cm-2 s-1, a factor of 10 below fluxes reported a decade ago for this energy.

引用

页码：674 / 678

页数：5

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