Early-time Ultraviolet Spectroscopy and Optical Follow-up Observations of the Type IIP Supernova 2021yja

Published in The Astrophysical Journal, 2022

Recommended citation: Vasylyev, Sergiy; et al. (2022). https://ui.adsabs.harvard.edu/abs/2022ApJ...934..134V/abstract

This paper presents ultraviolet and optical spectra of the young, nearby SN IIP 2021yja. Radiative transfer modeling shows that SN2021yja has a high velocity ejecta, low extinction, and subsolar metallicity. We do not find evidence of an additional heating source in the UV flux like one might expect from interaction with CSM.