Observations of the Crab Nebula, Mkn 501 and Mkn 421 using the TACTIC Imaging Element
Bhatt, N. · Agarwal, N. K. · Bhat, C. K. · Bhattacharyya, S. · Dhar, V. K. · Goyal, A. · Goyal, H. C. · Kaul, C. L. · Koul, D. K. · Kaul, I. K. · Kaul, R. K. · Kaul, S. K. · Kaul, S. R. · Koul, M. K. · Koul, R. · Kothari, M. · Rannot, R. C. · Razdan, A. K. · Sahayanathan, S. · Sapru, M. L. · Satyabhama, N. · Tickoo, A. K. · Venugopal, N. · Yadav, K. K. · Bhat, C. L.
Original · EN
The results of our observational campaigns on the two extragalactic sources Mkn 501 and Mkn 421, carried out with the Imaging Element of the TACTIC array, during March-May, 1998 and April-May, 1999, are presented. The results indicate that the two BL Lac objects (Mkn 501 and Mkn 421) were in a `low' gamma-ray emission state during both epochs of our observations.
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