68 citations · 747 across the 45 of their papers we have counts for
4 papers · 1 filter
Rapid optical variability of TeV blazars
Gopal-Krishna, Arti Goyal, S. Joshi +5
In this first systematic attempt to characterise the intranight optical variability (INOV) of TeV detected blazars, we have monitored a well defined set of 9 TeV blazars on total 2…
Discovery of the first giant double radio relic in a galaxy cluster found in the PLANCK Sunyaev-Zel'dovich cluster survey: PLCK G287.0+32.9
Joydeep Bagchi, S. K. Sirothia, Norbert Werner +6
We report the discovery of large scale diffuse non-thermal radio emission in PLCK G287.0+32.9, an exceptionally hot (T ~ 13 keV), massive and luminous galaxy cluster, strongly dete…
Optical variability of radio-intermediate quasars
Arti Goyal, Gopal-Krishna, S. Joshi +4
We report the results of our intensive intranight optical monitoring of 8 `radio-intermediate quasars' (RIQs) having flat or inverted radio spectra. The monitoring was carried out…
A giant radio jet of very unusual polarization in a single-lobed radio galaxy
Joydeep Bagchi, Gopal-Krishna, Marita Krause +2
We report the discovery of a very unusual, predominantly one-sided radio galaxy CGCG049-033. Its radio jet, the largest detected so far, emits strongly polarized synchrotron radiat…