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Unusual Long and Luminous Optical Transient in the Subaru Deep Field
Yuji Urata, Patrick P. Tsai, Kuiyun Huang +8
We present observations of SDF-05M05, an unusual optical transient discovered in the Subaru Deep Field (SDF). The duration of the transient is > ~800 d in the observer frame, and t…
A theoretical color-velocity correlation for supernovae associated with gamma-ray bursts
Sharon Rapoport, Stuart A. Sim, Keiichi Maeda +4
We carry out the first multi-dimensional radiative transfer calculations to simultaneously compute synthetic spectra and light curves for models of supernovae driven by fast bipola…
Super-Chandrasekhar-Mass Light Curve Models for the Highly Luminous Type Ia Supernova 2009dc
Yasuomi Kamiya, Masaomi Tanaka, Ken'ichi Nomoto +3
Several highly luminous Type Ia supernovae (SNe Ia) have been discovered. Their high luminosities are difficult to explain with the thermonuclear explosions of the Chandrasekhar-ma…
Three-Dimensional Explosion Geometry of Stripped-Envelope Core-Collapse Supernovae. I. Spectropolarimetric Observations
Masaomi Tanaka, Koji S. Kawabata, Takashi Hattori +8
We study the multi-dimensional geometry of supernova (SN) explosions by means of spectropolarimetric observations of stripped-envelope SNe, i.e., SNe without a H-rich layer. We per…
Light Curve Modeling of Superluminous Supernova 2006gy: Collision between Supernova Ejecta and Dense Circumstellar Medium
Takashi J. Moriya, Sergei I. Blinnikov, Nozomu Tominaga +4
We show model light curves of superluminous supernova 2006gy on the assumption that the supernova is powered by the collision of supernova ejecta and its dense circumstellar medium…
Detectability of High-Redshift Superluminous Supernovae with Upcoming Optical and Near-Infrared Surveys
Masaomi Tanaka, Takashi J. Moriya, Naoki Yoshida +1
Observations of high-redshift supernovae (SNe) open a novel opportunity to study the massive star population in the early Universe. We study the detectability of superluminous SNe…