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Published 1990 | Published
Book Section - Chapter Open

Gamma-Ray Imaging Observations of Point Source Emission From the Galactic Center Region


The first coded-aperture images of the galactic center region at energies above 30 keV reveal two strong 7-ray sources. One source is tentatively identified as the X-ray source 1El740.7-2942. If this source is at the distance of the galactic center, it is one of the most luminous objects in the galaxy at energies from 35 to 200 keV. The second source is consistent in location with the X-ray source GX354-0. No significant flux was detected from the direction of the galactic nucleus (Sgr A*).

Additional Information

© Organizing Committee of the 21st Int. Cosmic Ray Conf. Provided by the NASA Astrophysics Data System. We acknowledge the important contributions to the development of the GRIP telescope made by W. Althouse, D. Burke, A. Cummings, M. Finger, J. Weger and the personnel of the Central Engineering Services at Caltech. We thank the personnel of the National Scientific Balloon Facility and the NASA Wallops Flight Facility (or their excellent balloon launch support. This work was supported by NASA grant NGR 05-002-160.

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