5 papers
Impacts of hydrogen envelope on supernova fallback and the resulting compact remnant masses
Kengo Shinoda, Yudai Suwa, Ryosuke Hirai +4
Fallback in core-collapse supernovae plays a central role in setting compact-remnant masses and may produce late-time emission. In hydrogen rich progenitors, the reverse shock aris…
Red Giant Winds Driven by Alfvén Waves with Magnetic Diffusion
Takeru K. Suzuki, Keiichi Ohnaka, Yuki Yasuda
We investigate the driving mechanism of Alfvén wave-driven stellar winds from red giant stars, Arcturus ( Boo; K1.5 III) and Aldebaran ( Tau; K5 III), with nonideal MHD si…
First VLBI Imaging of SiO , Masers in VY Canis Majoris
Hiroko Shinnaga, Miyako Oyadomari, Hiroshi Imai +8
We achieved the first VLBI detections of the ground vibrational state () SiO (hereafter, SiO) and SiO masers of the rotational transitions, to…
Spin-down of solar-mass protostars in magnetospheric accretion paradigm
Shinsuke Takasao, Masanobu Kunitomo, Takeru K. Suzuki +2
Stellar spin is one of the fundamental quantities that characterize a star itself and its planetary system. Nevertheless, stellar spin-down mechanisms in protostellar and pre-main-…
Evolution of Tidal Disruption Event Disks with Magnetically Driven Winds
Mageshwaran Tamilan, Kimitake Hayasaki, Takeru K. Suzuki
We present a time-dependent, one-dimensional, magnetically-driven disk wind model based on magnetohydrodynamic (MHD) equations, in the context of tidal disruption events (TDEs). We…