Speaker
Description
A galaxy’s total radiation arises from a combination of processes including star formation, dust and gas reprocessing, accretion, and magnetic interactions. While star formation typically dominates the optical and infrared emission of galaxies, AGNs contribute significantly at X-ray, mid-infrared, and radio wavelengths. Even a modest AGN contribution can bias key derived quantities such as stellar mass, star formation rate, and dust properties. To improve the accuracy of these measurements, it is essential to move beyond simple galaxy/AGN classifications and systematically disentangle their respective contributions. As a step toward this, we extend the GAMA catalog by incorporating new radio data from the SWAG-X survey and X-ray data from eROSITA for 5,258 sources within redshift z < 0.1 in the G09 region. We perform multiwavelength Spectral Energy Distribution (SED) fitting from ultraviolet to radio using ProSpect to derive stellar masses and star formation rates for these sources. For the first time, we present a Cosmic Spectral Energy Distribution (CSED) spanning X-ray to radio wavelengths, constructed by stacking the SEDs of individual galaxies, providing a more complete view of the integrated energy output of the nearby Universe.
