273 citations · 2.2k across the 98 of their papers we have counts for
105 papers
Origin of the double-peaked narrow emission-lines in the optical spectra of X-shaped Radio Galaxies
Ghosh Prajnadipt, Ravi Joshi, Xiaolong Yang +13
We investigate X-shaped radio galaxies (XRGs) with optical double-peaked narrow emission lines (DPNELs) as potential hosts of dual or binary supermassive black holes (SMBHs). Using…
A sample of 25 radio galaxies with highly unusual radio morphologies, selected from the LoTSS-DR2 survey at 144 MHz
Gopal-Krishna, Dusmanta Patra, Ravi Joshi
From a careful visual scrutiny of the radio structures of a well-defined sample of 2428 sources in the LoTSS DR2 survey made at 144 MHz with a 6" beam, we have selected a subset of…
In-situ acceleration of radio-emitting particles in the lobes of radio galaxies: Evolving observational perspective and recent clues
Gopal-Krishna, Paul Wiita
The issue of radiation mechanisms had triggered in 1950-60s the first applications of plasma physics to understand the nature of radio galaxies. This interplay has steadily intensi…
Pathway to Devasthal Astronomical Observatory, ARIES
Ram Sagar, Gopal-Krishna
Devasthal observatory, established over a time span of about 5 decades, is located in central Himalayan region of Devabhumi in Nainital district of Uttarakhand state, India. Operat…
Precession-induced Variability in AGN Jets and OJ 287
Silke Britzen, Michal Zajaček, Gopal-Krishna +5
The combined study of the flaring of Active Galactic Nuclei (AGN) at radio wavelengths and pc-scale jet kinematics with Very Long Baseline Interferometry (VLBI) has led to the view…
Spectral index variation across X-shaped radio galaxies
Dusmanta Patra, Ravi Joshi, Gopal-Krishna
The formation mechanism of the enigmatic subclass of radio galaxies, called 'X-shaped radio galaxies' (XRGs), or 'winged' radio galaxies, which account for of the radio…