435 citations · 3k across the 62 of their papers we have counts for
63 papers
A Systematic Study of Quiescent and Outburst Properties of X-ray-bright Young Stellar Objects Using XMM-Newton
Koki Sakuta, Ikuyuki Mitsuishi, Seiya Sasamata +6
Young Stellar Objects (YSOs) exhibit strong X-ray emission, widely attributed to magnetic reconnection and magnetospheric accretion; however, owing primarily to limited photon stat…
Dust enrichment and grain growth in a smooth disk around the DG Tau protostar revealed by ALMA triple bands frequency observations
Satoshi Ohashi, Munetake Momose, Akimasa Kataoka +10
Characterizing the physical properties of dust grains in a protoplanetary disk is critical to comprehending the planet formation process. Our study presents ALMA high-resolution ob…
A Constraint on the Amount of Hydrogen from the CO Chemistry in Debris Disks
Kazunari Iwasaki, Hiroshi Kobayashi, Aya E. Higuchi +1
The faint CO gases in debris disks are easily dissolved into C by UV irradiation, while CO can be reformed via reactions with hydrogen. The abundance ratio of C/CO could thus be a…
Collisional Growth and Fragmentation of Dust Aggregates. II. Mass Distribution of Icy Fragments
Yukihiko Hasegawa, Takeru K. Suzuki, Hidekazu Tanaka +2
By performing -body simulations, we investigated fundamental processes of collisions between dust aggregates composed of submicron-sized icy dust monomers. We examined the mass…
Heavy-element Accretion by Proto-Jupiter in a Massive Planetesimal Disk, Revisited
Sho Shibata, Ravit Helled, Hiroshi Kobayashi
Planetesimal accretion is a key source for heavy-element enrichment in giant planets. It has been suggested that Jupiter's enriched envelope is a result of planetesimal accretion d…
Spitzer/IRS full spectral modeling to characterize mineralogical properties of silicate dust in heavily obscured AGNs
T. Tsuchikawa, H. Kaneda, S. Oyabu +3
Mid-Infrared (IR) silicate dust bands observed in heavily obscured active galactic nuclei (AGNs) include information on the mineralogical properties of silicate dust. We aim to inv…