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Opacity of fluffy dust aggregates
Akimasa Kataoka, Satoshi Okuzumi, Hidekazu Tanaka +1
Context. Dust grains coagulate to form dust aggregates in protoplanetary disks. Their porosity can be extremely high in the disks. Although disk emission may come from fluffy dust…
Water in Protoplanetary Disks: Deuteration and Turbulent Mixing
Kenji Furuya, Yuri Aikawa, Hideko Nomura +2
We investigate water and deuterated water chemistry in turbulent protoplanetary disks. Chemical rate equations are solved with the diffusion term, mimicking turbulent mixing in ver…
Local Enhancement of Surface Density in the Protoplanetary Ring Surrounding HD 142527
Misato Fukagawa, Takashi Tsukagoshi, Munetake Momose +15
We report ALMA observations of dust continuum, 13CO J=3--2, and C18O J=3--2 line emission toward a gapped protoplanetary disk around HD 142527. The outer horseshoe-shaped disk show…