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High-resolution spectral measurements of GRO J1655-40Data from the transient gamma ray germanium detector taken during 1995 provide a limited ability to study the high resolution spectrum of the X-ray transient GRO J1655-40. During a two-day period around the peak intensity, the soft spectrum was measured and found to be consistent with a power law spectrum with photon index -3.0 +/- 0.2. No evidence was found for narrow spectral features in the 50 to 100 keV band or around 511 keV. The 3 sigma upper limit for a narrow emission line at 511 keV is 1.2 x 10(exp -2) phot/cu cm s.
Document ID
19970025769
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
intZand, J. J. M. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Cline, T. L. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Gehrels, N. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Palmer, D. M. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Ramaty, R. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Seifert, H. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Teegarden, B. J. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Hurley, K. (California Univ. Berkeley, CA United States)
Pehl, R. (California Univ. Berkeley. Lawrence Berkeley Lab, CA United States)
Madden, N. (California Univ. Berkeley. Lawrence Berkeley Lab, CA United States)
Owens, A. (Leicester Univ. United Kingdom)
Date Acquired
August 17, 2013
Publication Date
March 1, 1997
Publication Information
Publication: Proceedings of 2nd INTEGRAL Workshop 'The Transparent Universe'
Subject Category
Astronomy
Accession Number
97N25239
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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IDRelationTitle19970025721Collected WorksProceedings of the 2nd INTEGRAL Workshop: The Transparent Universe
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