78 citations · 377 across the 31 of their papers we have counts for
32 papers
The transience and persistence of high optical polarization state in beamed radio quasars
Krishan Chand, Gopal-Krishna, Amitesh Omar +2
We examine the long-term stability (on decade-like time scales) of optical `high polarization' (HP) state with , which commonly occurs in flat-spectrum (i.e., beam…
Intranight optical variability of low-mass Active Galactic Nuclei: A Pointer to blazar-like activity
Gopal-Krishna, Krishan Chand, Hum Chand +4
This study aims to characterise, for the first time, intranight optical variability (INOV) of low-mass active galactic nuclei (LMAGN) which host a black hole (BH) of mass $M_{BH} \…
Intranight variability of UV emission from powerful blazars
Krishan Chand, Gopal-Krishna, Amitesh Omar +4
We report the first study to characterise intranight variability of the blazar class from the perspective of (rest-frame) UV emission. For this, we carried out intranight optical m…
Photometric variability of the pre-main sequence stars towards the Sh 2-190 region
Tirthendu Sinha, Saurabh Sharma, Neelam Panwar +7
We present the results from our time-series imaging data taken with the 1.3m Devasthal fast optical telescope and 0.81m Tenagara telescope in , , bands covering a…
Variable stars in the Sh 2-170 HII region
Tirthendu Sinha, Saurabh Sharma, A. K. Pandey +7
We present multi-epoch deep (20 mag) ~band photometric monitoring of the Sh 2-170 star-forming region to understand the variability properties of pre-main-sequence (PM…
Generalised Split Octonions and their transformation in SO(7) symmetry
K. Pushpa, P. S. Bisht, O. P. S. Negi
Generators of SO(8) group have been described by using direct product of the Gamma matrices and the Pauli Sigma matrices. We have obtained these generators in terms of generalized…