230 citations · 7k across the 160 of their papers we have counts for
12 papers · 1 filter
Elemental abundances of nearby M dwarfs based on high-resolution near-infrared spectra obtained by the Subaru/IRD survey: Proof of concept
Hiroyuki Tako Ishikawa, Wako Aoki, Teruyuki Hirano +24
Detailed chemical analyses of M dwarfs are scarce but necessary to constrain the formation environment and internal structure of planets being found around them. We present element…
"Ash-fall" induced by molecular outflow in protostar evolution
Yusuke Tsukamoto, Masahiro N. Machida, Shu-ichiro Inutsuka
Dust growth and its associated dynamics play key roles in the first phase of planet formation in young stellar objects (YSOs). Observations have detected signs of dust growth in ve…
Impact of Magnetic Braking on High-mass Close Binary Formation
Naoto Harada, Shingo Hirano, Masahiro N. Machida +1
Combining numerical simulations and analytical modeling, we investigate whether close binary systems form by the effect of magnetic braking. Using magnetohydrodynamics simulations,…
Can High-velocity Protostellar Jets Help to Drive Low-velocity Outflow?
Masahiro N. Machida
Using three-dimensional magnetohydrodynamics simulations, the driving of protostellar jets is investigated in different star-forming cores with the parameters of magnetic field str…
Super-fast Rotation in the OMC 2/FIR 6b Jet
Yuko Matsushita, Satoko Takahashi, Shun Ishii +4
We present ALMA CO (=2--1) and 1.3 mm continuum observations of the high-velocity jet associated with the FIR 6b protostar located in the Orion Molecular Cloud-2. We detect a ve…
Conditions for justifying single-fluid approximation for charged and neutral dust fluids and a smoothed particle magnetohydrodynamics method for dust-gas mixture
Y. Tsukamoto, M. N. Machida, S. Inutsuka
We describe a numerical scheme for magnetohydrodynamics simulations of dust-gas mixture by extending smoothed particle magnetohydrodynamics. We employ the single-species particle a…