The Early Ultraviolet Light-Curves of Type II Supernovae and the Radii of Their Progenitor Stars

Ido Irani, Jonathan Morag, Avishay Gal-Yam +18

We present a sample of 34 normal SNe II detected with the Zwicky Transient Facility, with multi-band UV light-curves starting at $t\le 4$ days after explosion, as well as X-ray d…