HIDING IN THE SHADOWS: SEARCHING FOR PLANETS IN PRE-TRANSITIONAL AND TRANSITIONAL DISKS

Jack Dobinson*, Zoe M. Leinhardt, Sarah E. Dodson-Robinson, Nick A. Teanby

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

3 Citations (Scopus)

Abstract

Transitional and pre-transitional disks can be explained by a number of mechanisms. This work aims to find a single observationally detectable marker that would imply a planetary origin for the gap and, therefore, indirectly indicate the presence of a young planet. N-body simulations were conducted to investigate the effect of an embedded planet of one Jupiter mass on the production of instantaneous collisional dust derived from a background planetesimal disk. Our new model allows us to predict the dust distribution and resulting observable markers with greater accuracy than previous works. Dynamical influences from a planet on a circular orbit are shown to enhance dust production in the disk interior and exterior to the planet orbit, while removing planetesimals from the orbit itself, creating a clearly defined gap. In the case of an eccentric planet, the gap opened by the planet is not as clear as the circular case, but there is a detectable asymmetry in the dust disk.

Original languageEnglish
Article numberL31
Number of pages6
JournalAstrophysical Journal Letters
Volume777
Issue number2
Early online date25 Oct 2013
DOIs
Publication statusPublished - 10 Nov 2013

Keywords

  • planet-disk interactions
  • protoplanetary disks
  • GM-AURIGAE
  • PLANETESIMALS
  • SYSTEMS
  • DEBRIS
  • GAS
  • PROTOPLANETS
  • SIMULATION
  • TIMESCALE
  • SIGNPOSTS
  • DIVERSITY

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