Takashi J. Moriya

TL;DR: In this paper, the mass-loss histories of Type IIn supernova progenitors are reconstructed based on the estimated circumstellar medium properties and it is shown that these properties are consistent with those obtained by other methods.

TL;DR: In this article, a core-collapse supernova (SN) model for the extremely luminous Type Ic SN 2007bi was presented, which is consistent with the corecollapse SN explosion of a 43 M ☉ carbon and oxygen core obtained from the evolution of a progenitor star with a main-sequence mass of 100 M and metallicity of Z = Z ☉/200, from which its hydrogen and helium envelopes are artificially stripped.

TL;DR: A spectrum obtained after the supernova faded away shows the presence of a foreground galaxy—the first found to strongly magnify a SNIa, and how more lensedSNIa can be found than previously predicted is discussed.

TL;DR: Forster et al. as mentioned in this paper presented 26 rising optical light curves of SN II candidates discovered shortly after explosion by the High Cadence Transient Survey and derived physical parameters based on hydrodynamical models using a Bayesian approach.

TL;DR: In this article, the authors presented rapidly rising transients discovered by a high-cadence transient survey with the Subaru telescope and Hyper Suprime-Cam, showing a rate of rise faster than 1 mag per day in the restframe near-ultraviolet wavelengths.