85 citations · 984 across the 57 of their papers we have counts for
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A Two Zone Synchrotron Model for the Knots in the M87 Jet
S. Sahayanathan
The flux and the spectral index in X-ray energy band from the knots of M87 jet as observed by {\it{Chandra}} indicate a possible synchrotron origin but cannot be explained by simpl…
The TACTIC atmospheric Cherenkov Imaging telescope
R. Koul, A. K. Tickoo, S. K. Kaul +19
The TACTIC -ray telescope, equipped with a light collector of area 9.5m and a medium resolution imaging camera of 349-pixels, has been in operation at Mt.Abu, India si…
Observations of TeV gamma-rays from Mrk 421 during Dec. 2005 to Apr. 2006 with the TACTIC telescope
K. K. Yadav, P. Chandra, A. K. Tickoo +16
The TACTIC -ray telescope has observed Mrk 421 on 66 clear nights from Dec. 07, 2005 to Apr. 30, 2006, totalling 202 hours of on-source observations. Here, we report the…
Interpretation of the Radio/X-ray Knots of AGN Jets within the Internal Shock Model Framework
S. Sahayanathan, R. Misra
The dynamics of relativistically moving blobs ejected out of a central AGN, are considered. It is assumed that the collision between two blobs are completely inelastic, such that t…
A Continuous Injection Plasma Model for the X-Ray/Radio Knots in Kpc-Scale Jets of AGN
S. Sahayanathan, R. Misra, A. K. Kembhavi +1
We consider the evolution of a spherically expanding plasma cloud, where there is continuous injection of non-thermal electrons. We compute the time dependent electron distribution…
Observations of the Crab Nebula, Mkn 501 and Mkn 421 using the TACTIC Imaging Element
N. Bhatt, N. K. Agarwal, C. K. Bhat +22
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 an…