Helium-rich Superluminous Supernovae from the Zwicky Transient Facility
Helium-rich Superluminous Supernovae from the Zwicky Transient Facility
Abstract Helium is expected to be present in the massive ejecta of some hydrogen-poor superluminous supernovae (SLSN-I). However, until now only one event has been identified with He features in its photospheric spectra (PTF10hgi). We present the discovery of a new He-rich SLSN-I, ZTF19aawfbtg (SN2019hge), at z = 0.0866. This …