activity
20212026
most citedAccretion Disk Sizes from Continuum Reverberation Mapping of AGN Selected from the ZTF Survey

57 citations · 78 across the 11 of their papers we have counts for

collaborators
Showing astro-ph.GAShow all

5 papers · 1 filter

astro-ph.GA2026

Low-Redshift Interlopers in the SDSS DR16 Quasar Catalogue

Vivek Kumar Jha, Harikumar N, Yogesh Wadadekar

High-redshift quasars () are crucial for studying early black hole growth and reionisation. SDSS Data Release 16 catalogues 655 such sources with multiple redshift estimators.…

astro-ph.GA2025

Do Low-Mass, Low-Luminosity AGNs Deviate from the Quasar Main Sequence?

Himanshu Sharma, Vivek Kumar Jha, Hum Chand +1

We present a comprehensive spectroscopic and variability-based characterisation of a sample of low-luminosity active galactic nuclei (AGNs) hosting low mass black holes, identified…

astro-ph.GA2024

Investigating the Nature and Structure of Inner Regions in Active Galactic Nuclei

Vivek Kumar Jha

The innermost regions of Active Galactic Nuclei (AGN) are critical for understanding galaxy evolution and the dynamics of matter near a Supermassive Black Hole (SMBH). Yet, due to…

astro-ph.GA2021★ 6 cited

A comparative study of the physical properties for a representative sample of Narrow and Broad-line Seyfert galaxies

Vivek Kumar Jha, Hum Chand, Vineet Ojha +2

We present a comparative study of the physical properties of a homogeneous sample of 144 Narrow line Seyfert 1 (NLSy1) and 117 Broad-line Seyfert 1 (BLSy1) galaxies. These two samp…

astro-ph.GA2021★ 57 cited

Accretion Disk Sizes from Continuum Reverberation Mapping of AGN Selected from the ZTF Survey

Vivek Kumar Jha, Ravi Joshi, Hum Chand +4

We present the accretion disk size estimates for a sample of 19 active galactic nuclei (AGN) using the optical , , and band light curves obtained from the Zwicky Transien…