Are there larger stellar velocity dispersions in low redshift Type-1 AGN than in Type-2 AGN?

2022/04/30 by XueGuang, Zhang
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Gamma-ray bursts and supernovae

paper · pdf · doi:10.48550/arxiv.2205.00194

openalex publication_date 2022/04/30 · openalex created_date 2022/05/05 · openalex updated_date 2026/07/28

Abstract

The main objective is to check the Unified Model (UM) expected similar stellar velocity dispersions between Type-1 AGN and Type-2 AGN, then to provide further clues on BH mass properties. Not similar as previous comparisons of BH masses estimated by \msig relations to Type-2 AGN but Virial BH masses in Type-1 AGN, reliable stellar velocity dispersions σ measured through absorption features around 4000Å~ are directly compared between so-far the largest samples of 6260 low redshift (z~

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