The progenitors of stripped-envelope supernovae (SNe Ibc) remain to be conclsuively identified, but correlations between SN rates and host-galaxy properties can constrain progenitor models. Here, we present one result from a re-analysis of the rates from the Lick Observatory Supernova Search. Galaxies with stellar masses less than ∼1010M⊙ are less efficient at producing SNe Ibc than more massive galaxies. Any progenitor scenario must seek to explain this new observation.
@article{arxiv.1509.08432,
title = {Stripped-envelope supernova rates and host-galaxy properties},
author = {Or Graur and Federica B. Bianco and Maryam Modjaz and Dan Maoz and Isaac Shivvers and Alexei V. Filippenko and Weidong Li},
journal= {arXiv preprint arXiv:1509.08432},
year = {2015}
}
Comments
Conference proceeding submitted to Astronomy in Focus, Vol. 2 as part of the XXIXth IAU General Assembly, Focus Meeting 10: "Stellar explosions in an ever-changing environment"