Stellar Masses and Star-Formation Rates of Galaxies and AGNs in the eFEDS GAMA09 Field

2023/11/27 by Zhibo Yu, Yu, Zhibo, Fan Zou +3 · 1 citation
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Gamma-ray bursts and supernovae #High Energy Astrophysical Phenomena (astro-ph.HE)

paper · pdf · doi:10.48550/arxiv.2311.16283

openalex publication_date 2023/11/27 · openalex created_date 2023/11/30 · openalex updated_date 2026/07/28

Abstract

The eFEDS is a wide ≈ 140 deg² field that has extensive multiwavelength coverage. To improve the utility of the existing data, we use CIGALE to fit source Spectral Energy Distributions (SEDs) from X-rays to far-infrared (FIR) mainly to derive stellar masses (M*) and star-formation rates (SFRs) for normal galaxies and X-ray Active Galactic Nuclei (AGNs). The catalog consists of 2,057,027 galaxies and 10,373 X-ray AGNs located in the ≈ 60 deg² GAMA09 sub-field. Comparing our M* with other available catalogs and our SFRs with FIR-derived SFRs, we demonstrate the general reliability of our SED-fitting measurements. Our catalog is publicly available at 10.5281/zenodo.10127224.

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