論文

査読有り
2016年6月

Mass constraint for a planet in a protoplanetary disk from the gap width

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
  • Kazuhiro D. Kanagawa
  • ,
  • Takayuki Muto
  • ,
  • Hidekazu Tanaka
  • ,
  • Takayuki Tanigawa
  • ,
  • Taku Takeuchi
  • ,
  • Takashi Tsukagoshi
  • ,
  • Munetake Momose

68
3
開始ページ
43
終了ページ
49
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1093/pasj/psw037
出版者・発行元
OXFORD UNIV PRESS

A giant planet creates a gap in a protoplanetary disk, which might explain the observed gaps in protoplanetary disks. The width and depth of the gaps depend on the planet mass and disk properties. We have performed two-dimensional hydrodynamic simulations for various planet masses, disk aspect ratios, and viscosities, to obtain an empirical formula for the gap width. The gap width is proportional to the square root of the planet mass, -3/4 the power of the disk aspect ratio and -1/4 the power of the viscosity. This empirical formula enables us to estimate the mass of a planet embedded in the disk from the width of an observed gap. We have applied the empirical formula for the gap width to the disk around HL Tau, assuming that each gap observed by the Atacama Large Millimeter/submillimeter Array (ALMA) observations is produced by planets, and discussed the planet masses within the gaps. The estimate of planet masses from the gap widths is less affected by the observational resolution and dust filtration than that by the gap depth.

Web of Science ® 被引用回数 : 43

リンク情報
DOI
https://doi.org/10.1093/pasj/psw037
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000377426100018&DestApp=WOS_CPL
URL
http://ads.nao.ac.jp/abs/2016arXiv160303853K