1.1k citations · 7.8k across the 150 of their papers we have counts for
10 papers · 1 filter
Properties of magnetars mimicking 56Ni-powered light curves in Type Ic superluminous supernovae
Takashi J. Moriya, Ting-Wan Chen, Norbert Langer
Many Type Ic superluminous supernovae have light-curve decline rates after their luminosity peak which are close to the nuclear decay rate of 56Co, consistent with the interpretati…
Light-curve and spectral properties of ultra-stripped core-collapse supernovae leading to binary neutron stars
Takashi J. Moriya, Paolo A. Mazzali, Nozomu Tominaga +7
We investigate light-curve and spectral properties of ultra-stripped core-collapse supernovae. Ultra-stripped supernovae are the explosions of heavily stripped massive stars which…
Radio transients from accretion-induced collapse of white dwarfs
Takashi J. Moriya
We investigate observational properties of accretion-induced collapse (AIC) of white dwarfs in radio frequencies. If AIC is triggered by accretion from a companion star, a dense ci…
Supernovae powered by magnetars that transform into black holes
Takashi J. Moriya, Brian D. Metzger, Sergei I. Blinnikov
Rapidly rotating, strongly magnetized neutron stars (magnetars) can release their enormous rotational energy via magnetic spin-down, providing a power source for bright transients…
Constraining the ellipticity of strongly magnetized neutron stars powering superluminous supernovae
Takashi J. Moriya, Thomas M. Tauris
Superluminous supernovae (SLSNe) have been suggested to be powered by strongly magnetized, rapidly rotating neutron stars which are often called magnetars. In this process, rotatio…
Circumstellar and explosion properties of Type Ibn supernovae
Takashi J. Moriya, Keiichi Maeda
We investigate circumstellar and explosion properties of Type Ibn supernovae (SNe) by analyzing their bolometric light curves. Bolometric light curves of Type Ibn SNe generally hav…
Rapidly evolving faint transients from stripped-envelope electron-capture supernovae
Takashi J. Moriya, J. J. Eldridge
We investigate the expected rates and bolometric light-curve properties of stripped-envelope electron-capture supernovae (ECSNe) using stellar models from the Binary Population and…
A new route towards merging massive black holes
Pablo Marchant, Norbert Langer, Philipp Podsiadlowski +2
Recent advances in gravitational-wave astronomy make the direct detection of gravitational waves from the merger of two stellar-mass compact objects a realistic prospect. Evolution…
Rapidly Rising Transients from Subaru Hyper Suprime-Cam Transient Survey
Masaomi Tanaka, Nozomu Tominaga, Tomoki Morokuma +13
We present rapidly rising transients discovered by a high-cadence transient survey with Subaru telescope and Hyper Suprime-Cam. We discovered five transients at z=0.384-0.821 showi…
Low-energy Population III supernovae and the origin of extremely metal-poor stars
Ke-Jung Chen, Alexander Heger, Daniel J. Whalen +3
Some ancient, dim, metal-poor stars may have formed in the ashes of the first supernovae (SNe). If their chemical abundances can be reconciled with the elemental yields of specific…