Gamma-Ray Observations of GRO J1655-40

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Abstract:

The bright transient X-ray source GRO J1655-40 XN Sco 1994 was observed by the OSSE instrument on the Compton Gamma Ray Observatory GRO. Preliminary results are reported here. The initial outburst from GRO J1655-40 was detected by BATSE on 27 Jul 1994. OSSE observations were made in five separate viewing periods starting between 4 Aug 1994 and 4 Apr 1995. The first, third, and fifth observations are near the peak luminosity. In the second observation, the source flux had dropped by several orders of magnitude and we can only set an upper limit. The fourth observation is a weak detection after the period of maximum outburst. In contrast with other X-ray novae such as GRO J042232, the spectrum determined by OSSE is consistent with a simple power law over the full range of detection, about 50

Author(s):
Kroeger, R. A. ; Strickman, M. S. ; Grove, J. E. ; Kaaret, P. ; Ford, E. ; Harmon, B. A. ; Mcconnell, M.
Author Organization(s):
NAVAL RESEARCH LAB WASHINGTON DC
Pagination:
0005

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DPR-W-10987C
Monitor Series:
NASA
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_6.3_Net Management; JCA_8_Building Partnerships
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*GAMMA RAYS, DETECTION, OBSERVATION, X RAYS
Field(s)/Group(s):
Astrophysics
Keyword(s):
GRO(GAMMA RAY OBSERVATORY)
Report Date:
1996 Jan 01
Creation Date:
2007 Apr 11