#broad-line region

topicbroad-line region

2 papers · 1 filter

astro-ph.GA2026

Revealing the Physical Driver of the Baldwin Effect: Gas Density in the Broad-Line Region

Wen-Qiang Liang, Zhi-Fu Chen, Rui-Jing Lu +8

The paper shows that the Baldwin effect in quasars is mainly driven by the gas density in the broad-line region, with higher Eddington ratios producing denser BLRs and shallower eq…

astro-ph.HE2026

Variability of the X-ray obscuring wind in Mrk 335 with XMM-Newton/RGS

Daniele Rogantini, Erin Kara, Luigi Gallo +10

The paper analyzes X‑ray spectra of the Seyfert galaxy Mrk 335 to characterize a multi‑phase, clumpy accretion‑disk wind that shows strong variability on day‑scale timescales and a…