#quasars

topicquasars

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.GA2026

An Exploratory Analysis of New Large Gaia-informed Quasar Samples in SDSS-V

Shir Aviram, Benny Trakhtenbrot, Tom Dwelly +22

The paper presents an exploratory analysis of a new all‑sky quasar catalog from SDSS‑V, using Gaia‑ and WISE‑based selection methods (GUA and Skewt‑QSO) that yield over 250,000 spe…