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Search for TeV gamma rays from extragalactic sources and the Galactic CenterThe Ooty atmospheric Cerenkov array was used in 1982-83 to see if the galactic center and the extra-galactic sources 3C 273, Centaurus A emit gamma rays at TeV energies. The ON/OFF method was used wherein the source was tracked for 16 minutes and immediately afterwards, a background region in the same zenith angle range was tracked for the next 16 minutes. Data were taken for approx 15 hours (55 scans) on 3C273, approx 7 hours (26 scans) on Cen A and 5 hours (19 scans) on galactic center. A preliminary analysis involving direct comparison of total rates on and off the source shows no significant excess from any of these orbits. Results of detailed analysis using different energy thresholds are presented.
Document ID
19850025663
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bhat, P. N.
(Tata Inst. of Fundamental Research Bombay, India)
Gupta, S. K.
(Tata Inst. of Fundamental Research Bombay, India)
Ramanamurthy, P. V.
(Tata Inst. of Fundamental Research Bombay, India)
Swaminathan, S.
(Tata Inst. of Fundamental Research Bombay, India)
Vishwanath, P. R.
(Tata Inst. of Fundamental Research Bombay, India)
Date Acquired
August 12, 2013
Publication Date
August 1, 1985
Publication Information
Publication: NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 1
Subject Category
Space Radiation
Report/Patent Number
OG-2.7-1
Report Number: OG-2.7-1
Accession Number
85N33976
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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