4 papers
A Hybrid Origin for the Multiple Ring-Gap Structures in the Large Protoplanetary Disk V1094 Sco: A Low-Mass Planet and Secular Gravitational Instability
Masayuki Yamaguchi, Masahiro N. Machida, Ryosuke T. Tominaga +7
High spatial resolution observations reveal that some protoplanetary disks host multiple ring-gap pairs at large stellocentric radii, yet their physical origin remains unsettled. W…
Oxygen Isotopic Compositions of Chondrules as Probes of Solar Protoplanetary Disk Formation
Sota Arakawa, Takayuki Ushikubo, Ryosuke T. Tominaga
Chondrules are thought to have formed during transient flash-heating events in dust-enriched regions of the solar protoplanetary disk. Although laboratory studies have characterize…
Hydrodynamical simulations of the vertical shear instability with dynamic dust and cooling rates in protoplanetary disks
Yuya Fukuhara, Mario Flock, Satoshi Okuzumi +1
Turbulence in protoplanetary disks affects dust evolution and planetesimal formation. The vertical shear instability (VSI) is one of the candidate turbulence-driving mechanisms in…
Dust coagulation assisted by streaming instability in protoplanetary disks
Ryosuke T. Tominaga, Hidekazu Tanaka
The streaming instability is a promising mechanism for planetesimal formation. The instability can rapidly form dense clumps that collapse self-gravitationally, which is efficient…