A Tale of Two Grains: Impact of Grain Size on Ring Formation via Nonideal Magnetohydrodynamic Processes

@article{Hu2020ATO,
  title={A Tale of Two Grains: Impact of Grain Size on Ring Formation via Nonideal Magnetohydrodynamic Processes},
  author={Xiao 晓 Hu 胡 and Lile 力乐 Wang 王 and Satoshi 住 聡 Okuzumi 奥 and Zhaohuan 照寰 Zhu 朱},
  journal={The Astrophysical Journal},
  year={2020},
  volume={913}
}
Substructures in protoplanetary disks (PPDs), whose ubiquity was unveiled by recent Atacama Large Millimeter/submillimeter Array observations, are widely discussed regarding their possible origins. We carry out global 2D magnetohydrodynamic (MHD) simulations in axisymmetry, coupled with self-consistent ray-tracing radiative transfer, thermochemistry, and nonideal MHD diffusivities. The abundance profiles of grains are also calculated based on the global dust evolution calculation, including… 
Dust Rings as a Footprint of Planet Formation in a Protoplanetary Disk
Relatively large dust grains (referred to as pebbles) accumulate at the outer edge of the gap induced by a planet in a protoplanetary disk, and a ring structure with a high dust-to-gas ratio can be

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