X-Ray Astronomy

Metallicity Calibrations in AGNs: N₂O₂ and N₂S₂ Diagnostics

Developing new semi-empirical metallicity calibrations that successfully decouple true gas-phase chemical abundances from structural nebular variations driven by the X-ray …

Oxygen Abundances & The Metallicity-Luminosity Relation

Investigating the metallicity-luminosity relation in Seyfert galaxies by combining optical emission line datasets with advanced CLOUDY photoionization models.