3 papers
astro-ph.GA2025
Evolution of broad emission lines from double-peaked to single-peaked to support a central tidal disruption event
Zhang XueGuang
In this manuscript, considering evolution of fallback accreting debris in a central Tidal Disruption Event (TDE), the outer boundary increased with time of the disk-like broad emis…
astro-ph.GA2025
Periodic variations of the first and second moments of broad Balmer emission lines from central accretion disks
Zhang XueGuang
Broad emission line regions (BLRs) lying into central accretion disks has been widely accepted to explain the unique double-peaked broad emission lines in Active Galactic Nuclei (d…
astro-ph.GA2024
Mass evolution of broad line regions to explain the luminosity variability of broad H in the TDE ASASSN-14li
XueGuang Zhang
In this manuscript, an oversimplified model is proposed for the first time to explain the different variability trends in the observed broad H emission line luminosity $L_{Hα}(t…