Kinematics and host-galaxy properties suggest a nuclear origin for calcium-rich supernova progenitors
Kinematics and host-galaxy properties suggest a nuclear origin for calcium-rich supernova progenitors
Calcium-rich supernovae (Ca-rich SNe) are peculiar low-luminosity SNe Ib with relatively strong Ca spectral lines at ∼2 months after peak brightness. This class also has an extended projected offset distribution, with several members of the class offset from their host galaxies by 30–150 kpc. There is no indication of any …