Poster Presentation

Constructing GALEX UV Catalog of Nearby Galaxies

Author(s): Jeeun Hwang (Seoul National University), Myungshin Im (Seoul National University), Gregory Paek (Seoul National University), Hyeonho Choi (Seoul National University)

Presenter: Jeeun Hwang (Seoul National University)

Detecting transients in early phase has become important for understanding the progenitor properties. Predicting which galaxy has the higher probability of hosting the transient events would help detect the early phase of the events and identify their progenitors. The supernova and kilonova rates are known to be closely related to the star formation rate (SFR) of the host galaxy. The SFR of a galaxy can be estimated from ultraviolet luminosity. However, the UV magnitudes have been scrupulously derived only for a limited number of nearby galaxies. Here, we introduce GALEX galaxy catalog of all-sky UV brightness of low redshift galaxies. We derive the UV photometry of galaxies using the GALEX AIS images, supplemented by NGS and MIS data. From the NUV and FUV magnitudes, we calculate the SFRs of the galaxies, which will be useful for estimating the supernova and kilonova rate.