Using Machine Learning to Determine Morphologies of $z<1$ AGN Host Galaxies in the Hyper Suprime-Cam Wide Survey

Subjects: Astronomy >> Astrophysical processes submitted time 2023-02-19

Chuan Tian C. Megan Urry Aritra Ghosh Ryan Ofman Tonima Tasnim Ananna Connor Auge Nico Cappelluti Meredith C. Powell David B. Sanders Kevin Schawinski Dominic Stark Grant R. Tremblay

Abstract： We present a machine-learning framework to accurately characterize morphologies of Active Galactic Nucleus (AGN) host galaxies within $z<1$. We first use PSFGAN to decouple host galaxy light from the central point source, then we invoke the Galaxy Morphology Network (GaMorNet) to estimate whether the host galaxy is disk-dominated, bulge-dominated, or indeterminate. Using optical images from five bands of the HSC Wide Survey, we build models independently in three redshift bins: low $(0展开 -->

Peer Review Status:Awaiting Review

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