Gravitational fragmentation and formation of giant protoplanets on orbits of tens of AU

Vardan G. Elbakyan, Eduard I. Vorobyov, Bruce G. Elmegreen, L. Viktor Tóth, Manuel Güdel

Research output: Contribution to journalArticle

Abstract

Migration of dense gaseous clumps that form in young protostellar disks via gravitational fragmentation is investigated to determine the likelihood of giant-planet formation. We show that gaseous clumps that form in the outer regions of the disk (> 100 au) through disk fragmentation often migrate toward the central star on timescales from a few thousand to few tens of thousands of years. The tidal mass loss helps the clumps to significantly slow down or even halt their inward migration at a distance of a few tens of AU from the protostar.

Original languageEnglish
Pages (from-to)234-236
Number of pages3
JournalProceedings of the International Astronomical Union
DOIs
Publication statusAccepted/In press - Jan 1 2019

Keywords

  • planetary systems: Protoplanetary disks
  • stars: Formation

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

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