Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-26T14:59:25.113Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Published online by Cambridge University Press:  13 January 2020

Vardan G. Elbakyan Open the ORCID record for Vardan G. Elbakyan [Opens in a new window]  and
Eduard I. Vorobyov
Vardan G. Elbakyan
Affiliation:
Research Institute of Physics, Southern Federal University, Roston-on-Don, 344090Russia email: vgelbakyan@sfedu.ru
Eduard I. Vorobyov
Affiliation:
Research Institute of Physics, Southern Federal University, Roston-on-Don, 344090Russia email: vgelbakyan@sfedu.ru University of Vienna, Department of Astrophysics, Vienna, 1180, Austria email: eduard.vorobiev@univie.ac.at
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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.

Keywords

stars: formationplanetary systems: protoplanetary disks
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S345: Origins: From the Protosun to the First Steps of Life , August 2018 , pp. 234 - 236
Copyright
© International Astronomical Union 2020 

References

Marois, C., Macintosh, B., Barman, T., et al. 2008, Science, 322, 1348 CrossRefGoogle Scholar
Kalas, P., Graham, J. R., Chiang, E., et al. 2008, Science, 322, 1345 CrossRefGoogle Scholar
Lafreniére, D., Jayawardhana, R. & van Kerkwijk, M. H. 2010, ApJ, 719, 497 CrossRefGoogle Scholar
Vorobyov, E. I., & Basu, S. 2015, ApJ, 805, 115 CrossRefGoogle Scholar