141 citations · 2k across the 55 of their papers we have counts for
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Observationally derived magnetic field strength and 3D components in the HD 142527 disk
Satoshi Ohashi, Takayuki Muto, Yusuke Tsukamoto +5
In protoplanetary disks around young stars, magnetic fields play an important role for disk evolution and planet formation. Polarized thermal emission from magnetically aligned gra…
Cosmic-ray ionization rate versus Dust fraction: Which plays a crucial role in the early evolution of the circumstellar disk?
Yudai Kobayashi, Daisuke Takaishi, Yusuke Tsukamoto
We study the formation and early evolution of young stellar objects (YSOs) using three-dimensional non-ideal magnetohydrodynamic (MHD) simulations to investigate the effect of cosm…
A new formation scenario of a counter-rotating circumstellar disk: spiral-arm accretion from a circumbinary disk in a triple protostar system
Daisuke Takaishi, Yusuke Tsukamoto, Yasushi Suto
We present the evolution of rotational directions of circumstellar disks in a triple protostar system simulated from a turbulent molecular cloud core with no magnetic field. We fin…
Formation of "Blanets" from Dust Grains around the Supermassive Black Holes in Galaxies
Keiichi Wada, Yusuke Tsukamoto, Eiichiro Kokubo
In Wada, Tsukamoto, and Kokubo (2019), we proposed for the first time that a new class of planets, "blanets" (i.e., black hole planets), can be formed around supermassive black hol…
Star-disk alignment in the protoplanetary disks: SPH simulation of the collapse of turbulent molecular cloud cores
Daisuke Takaishi, Yusuke Tsukamoto, Yasushi Suto
We perform a series of three-dimensional smoothed particle hydrodynamics (SPH) simulations to study the evolution of the angle between the protostellar spin and the protoplanetary…
Pebble accretion in class 0/I YSOs as a possible pathway for early planet formation
Yuki A. Tanaka, Yusuke Tsukamoto
Recent theoretical works suggest that the pebble accretion process is important for planet formation in protoplanetary disks, because it accelerates the growth of planetary cores.…
The self gravity effect on the orbital stability of Twotinos
Yusuke Tsukamoto
We investigate how the self gravity changes the orbital stability of Twotinos using N-body simulations in which the gravitational interaction between planetesimals are fully calcul…