Oxygen Abundances & The Metallicity-Luminosity Relation
Jan 20, 2023
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1 min read
By systematically analyzing the narrow line regions (NLRs) of Seyfert galaxies, this project explores how actively accreting supermassive black holes influence the gas-phase oxygen abundances in their host environments. Using state-of-the-art photoionization models, we established refined metallicity-luminosity relations crucial for understanding galaxy evolution, specifically noting the anti-correlation driven by AGN feedback.
Interactive M-Z-L Relation Simulator
Simulate the shifts in the Luminosity-Metallicity anti-correlation across varying degrees of AGN feedback strength.
Authors
Mark Armah
(He/Him)
Postdoctoral Fellow
I am an extragalactic astrophysicist specializing in the chemical evolution of Active Galactic Nuclei (AGNs) and Seyfert galaxies. My research addresses a fundamental question in galaxy evolution: how do actively accreting supermassive black holes regulate the chemical and physical properties of their host environments? By bridging the gap between intricate multi-dimensional spectroscopic datasets and advanced theoretical photoionization models, I develop custom computational pipelines to untangle AGN radiation from true gas-phase abundances. Ultimately, my work pioneers robust new metallicity calibrations and diagnostic tools that allow wider applications to decode complex AGN feedback mechanisms.