273 citations · 2.2k across the 98 of their papers we have counts for
6 papers · 1 filter
Constraints on supermassive black hole spins from observations of active galaxy jets
E. Kun, P. J. Wiita, L. Á. Gergely +3
We discuss the origin of the low-energy cutoff, or LEC, seen in the radio spectra of many extragalactic jets and relate this to the spin of the supermassive black holes that presum…
Supermassive black hole mergers as dual sources for electromagnetic flares in the jet emission and gravitational waves
M. Tápai, L. Á. Gergely, Z. Keresztes +3
We present a new type of observation relating the gravitational wave emission of supermassive black hole mergers to their electromagnetic counterparts. This dual emission involves…
Improved characterisation of intra-night optical variability of prominent AGN classes
Arti Goyal, Gopal-Krishna, Paul J. Wiita +2
The incidence of intra-night optical variability (INOV) is known to to differ significantly among different classes of powerful active galactic nuclei (AGN). A number of statistica…
Incidence of Strong MgII Absorbers Towards Different Types of Quasars
Ravi Joshi, Hum Chand, Gopal-Krishna
We report the first comparative study of strong MgII absorbers seen towards radio-loud quasars of core-dominated (CDQs) and lobe-dominated (LDQs) types and normal QSOs. The MgII as…
On the photometric error calibration for the `differential light curves' of point-like Active Galactic Nuclei
Arti Goyal, Mukul Mhaskey, Gopal-Krishna +3
It is important to quantify the underestimation of rms photometric errors returned by the commonly used algorithm in the software, in the context of dif…
Hint of 150 MHz radio emission from the Neptune-mass extrasolar transiting planet HAT-P-11b
A. Lecavelier des Etangs, S. K. Sirothia, Gopal-Krishna +1
Since the radio-frequency emission from planets is expected to be strongly influenced by their interaction with the magnetic field and corona of the host star, the physics of this…