Photometry and preliminary modelling of Type IIb Supernova 2017gpn

Maria Pruzhinskaya, Elena Balakina, Alexander Moskvitin +1

MASTER OT J033744.97+723159.0/SN 2017gpn was discovered in the error-box of LIGO/Virgo G299232 gravitational wave alert. The spectrum of SN 2017gpn is consistent with a Type IIb su…