摘要：While undertaking the next phase of analysis of the correlation of Type Ia supernova (SN Ia) brightnesses with properties of their local host environments, we discovered a software error affecting the measurements used in Rigault et al. (2013). The measurements of host-galaxy Hα emission, ΣHα, and resulting local star formation rate, LSFR, measured for the environment surrounding each SN in Rigault et al. (2013) where not in units of M yr−1 kpc−2 , as intended, but rather in units of M yr−1 arcsec−2 averaged over a 1 kpc aperture. Here we provide corrected values for several key quantities, finding that these do not significantly change the main conclusions of the original paper.
