collaborators

8 papers

astro-ph.GA2025

Standardizing reverberation-mapped H active galactic nuclei using time-averaged radiusluminosity relations with 5100\,Å\,, broad H, and narrow \OIII\ luminosities

Shulei Cao, Amit Kumar Mandal, Michal Zajaček +1

Active galactic nuclei (AGN) have been studied as alternate probes in cosmology due to their large and stable luminosities and broad redshift range. Previously it was shown that hi…

astro-ph.GA2025

Spectroscopic Reverberation Mapping for SARM: The Case of Mrk 1048 and Mrk 618

Shivangi Pandey, Suvendu Rakshit, S. Muneer +14

Robust extragalactic distance measurements are crucial for resolving the persistent discrepancy in the value of the Hubble constant (H)). Active Galactic Nuclei (AGNs), through…

astro-ph.GA2025

Probing dust torus radius--luminosity relation: An WISE view

Ashutosh Tomar, Suvendu Rakshit, Amit Kumar Mandal +1

We present measurements of the dusty torus sizes of 51 active galactic nuclei (AGNs) with a redshift of 0.8. Our analysis utilizes about 16 years of optical photometric data o…

astro-ph.GA2025

Scaling Relations of the Dusty Torus with Luminosity and the Broad-Line Region

Ashraf Ayubinia, Jong-Hak Woo, Shu Wang +2

We measure and compare the size of the dusty torus with active galactic nucleus (AGN) luminosity and the size of the broad-line region (BLR), using a sample of 182 AGNs with the be…

astro-ph.GA2025

Standardizing a larger, higher-quality, homogeneous sample of reverberation-mapped H active galactic nuclei using the broad-line region radius-luminosity relation

Shulei Cao, Amit Kumar Mandal, Michal Zajaček +1

We present a high-quality, homogeneous sample of 157 H reverberation-mapped active galactic nuclei (RM AGNs) spanning redshifts , which is approximat…

astro-ph.GA2025

Seoul National University AGN Monitoring Project. V. Velocity-resolved H-beta Reverberation Mapping and Evidence of Kinematics Evolution

Shu Wang, Jong-Hak Woo, Aaron J. Barth +13

We present velocity-resolved reverberation lags of H-beta for 20 active galactic nuclei (AGNs) from the Seoul National University AGN Monitoring Project. We detect unambiguous velo…