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High Energy Gamma Rays from Pulsars

Published online by Cambridge University Press:  14 August 2015

P. N. Bhat
Affiliation:
Tata Institute of Fundamental Research, Homi Bhabha Marg, Colaba, Bombay 400005, India
S. K. Gupta
Affiliation:
Tata Institute of Fundamental Research, Homi Bhabha Marg, Colaba, Bombay 400005, India
P.V. Ramana Murthy
Affiliation:
Tata Institute of Fundamental Research, Homi Bhabha Marg, Colaba, Bombay 400005, India
B. V. Sreekantan
Affiliation:
Tata Institute of Fundamental Research, Homi Bhabha Marg, Colaba, Bombay 400005, India
S. C. Tonwar
Affiliation:
Tata Institute of Fundamental Research, Homi Bhabha Marg, Colaba, Bombay 400005, India
P. R. Viswanath
Affiliation:
Tata Institute of Fundamental Research, Homi Bhabha Marg, Colaba, Bombay 400005, India

Abstract

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We present here the results from observations of pulsed gamma ray emission from the Crab and Vela pulsars for energies above 100 GeV using the atmospheric Cerenkov technique. The results suggest a very steep energy spectrum for gamma rays emitted from pulsars at high energies. Our observations over the last 4 years suggest also that the flux is highly variable with time.

Type
V. X-Ray and γ-Ray Emission
Copyright
Copyright © Reidel 1981 

References

Ayasli, S. and Ögelman, H.: 1980, Astrophys. J. 237, pp. 227235.Google Scholar
Bhat, P.N., Gupta, S.K., Ramana Murthy, P.V., Sreekantan, B.V., Tonwar, S.C., and Viswanath, P.R.: 1980, Astron. Astrophys. 81, pp. L3L5.Google Scholar
Grindlay, J.E., Helmken, H.F., Hanbury Brown, R., Davis, J., and Allen, L.R.: 1975, Astrophys. J. 201, pp. 8289.Google Scholar
Grindlay, J.E., Helmken, H.F., and Weekes, T.C.: 1976, Astrophys. J. 209, pp. 592601.Google Scholar
Gupta, S.K., Ramana Murthy, P.V., Sreekantan, B.V., and Tonwar, S.C.: 1978, Astrophys. J. 221, pp. 268273.Google Scholar
Helmken, H.F., Fazio, G.G., O'Mongain, E., and Weekes, T.C.: 1973, Astrophys. J. 184, pp. 245250.Google Scholar
Lichti, G.G. et al.: 1980, Non-Solar Gamma Rays (COSPAR), Eds.: Cowsik, R. and Wills, R.D., Pergamon Press, pp. 4953.Google Scholar
Manchester, R.N. and Taylor, J.H.: 1977, Pulsars, Freeman & Co. Google Scholar
Salvati, M. and Massaro, E.: 1978, Astron. Astrophys. 67, pp. 5563.Google Scholar
Taylor, J.H. and Manchester, R.N.: 1975, Astron. J. 80, pp. 794806.Google Scholar