activity
20042026
most citedThe Case for Electron Re-Acceleration at Galaxy Cluster Shocks

203 citations · 1.2k across the 51 of their papers we have counts for

collaborators

54 papers

astro-ph.GA2026

J023721.13010528.5: A Giant -shaped Radio Galaxy Showing Four Episodes of Jet Activity

Pavan Vijay Khadekar, Dharam Vir Lal, Ramana Athreya

We present high-sensitivity, high-resolution radio observations of J023721.13010528.5 using the upgraded Giant Metrewave Radio Telescope in band-3 (250--500\,MHz) and band-4 (55…

astro-ph.GA2025★ 5 cited

MIGHTEE: exploring the relationship between spectral index, redshift and radio luminosity

Siddhant Pinjarkar, Martin J. Hardcastle, Dharam V. Lal +9

It has been known for many years that there is an apparent trend for the spectral index (α) of radio sources to steepen with redshift z, which has led to attempts to select high-re…

astro-ph.GA2024

X-ray Cool Core Remnants Heated by Strong Radio AGN Feedback

Wenhao Liu, Ming Sun, G. Mark Voit +6

Strong AGN heating provides an alternative means for the disruption of cluster cool cores (CCs) to cluster mergers. In this work we present a systematic Chandra study of a sample o…

astro-ph.GA2023★ 11 cited

Spectral age distribution for radio-loud active galaxies in the XMM-LSS field

Siddhant Pinjarkar, Martin J. Hardcastle, Jeremy J. Harwood +5

Jets of energetic particles, as seen in FR type-I and FR type-II sources, ejected from the center of Radio-Loud AGN affect the sources surrounding intracluster medium/intergalactic…

astro-ph.GA2022★ 18 cited

High-resolution, High-sensitivity, Low-frequency uGMRT View of Coma Cluster of Galaxies

D. V. Lal, N. Lyskova, C. Zhang +12

We present high-resolution, high-sensitivity upgraded Giant Metrewave Radio Telescope observations of the Coma cluster (A1656) at 250-500 MHz and 550-850 MHz. At 250-500 MHz, 135 s…

astro-ph.GA2022★ 17 cited

A multiwavelength study of the W33 Main ultracompact HII region

Sarwar Khan, Jagadheep D. Pandian, Dharam V. Lal +7

The dynamics of ionized gas around the W33 Main ultracompact HII region is studied using observations of hydrogen radio recombination lines and a detailed multiwavelength character…