CGRO-COMPTEL OBSERVATIONS OF THE CENTAURUS-A REGION

被引：4

作者：

STEINLE, H

BENNETT, K

BLOEMEN, H

COLLMAR, W

DIEHL, R

HERMSEN, W

LICHTI, G

MCCONNELL, M

MORRIS, D

MUCH, R

RYAN, J

SCHONFELDER, V

STRONG, AW

VARENDORFF, M

WINKLER, C

机构：

[1] SRON,3584 CA UTRECHT,NETHERLANDS

[2] UNIV NEW HAMPSHIRE,CTR SPACE SCI,DURHAM,NH 03824

[3] EUROPEAN SPACE TECHNOL CTR,DIV ASTROPHYS,2200 AG NOORDWIJK,NETHERLANDS

来源：

GAMMA RAY ASTRONOMY | 1995年 / 15卷 / 05期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/0273-1177(94)00031-U

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The sky region containing the active radio-galaxy Centaurus A has repeatedly been observed with the COMPTEL instrument onboard the Compton Gamma Ray Observatory (CGRO). The nine observation periods during the CGRO phases I and II in which Cen A was in the field of view of COMPTEL are spread over 18 months in the years 1991 to 1993. The energy range 0.75 to 30 MeV is covered. Clear evidence for a source with emission up to several MeV is seen from a region coinciding with the position of Cen A. The spectra change significantly over similar to 6 months between the two observation phases. A possible source confusion with the nearby gamma-ray source MS1312.1-4221 is discussed.

引用

页码：37 / 40

页数：4

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