Strong Correlation between Fe ii/Mg ii Ratio and Eddington Ratio of Type 1 Active Galactic Nuclei
نویسندگان
چکیده
The FeII/MgII line flux ratio has been used as an indicator of the Fe/Mg abundance in broad region (BLR) active galactic nuclei (AGNs). On basis archival rest-frame UV spectra obtained via Hubble Space Telescope and Sloan Digital Sky Survey, we investigate ratios type 1 AGNs at z < 2. Over wide dynamic ranges AGN properties (i.e., black hole mass, luminosity, Eddington ratio), confirm that strongly correlates with but not or redshift. Our results suggest metallicity BLR are physically related to accretion activity AGNs, global galaxies galaxy mass luminosity). With regard relation between rate discuss metal cooling may play important role enhancing gas inflow into central host galaxies, resulting high AGNs.
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2021
ISSN: ['2041-8213', '2041-8205']
DOI: https://doi.org/10.3847/1538-4357/ac0adf