Survival and detectability of long period planets beyond 100 AU

D. Veras, J. R. Crepp, Eric B. Ford

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Direct imaging searches have begun to detect planetary and brown dwarf companions and to place constraints on the presence of giant planets at large separations from their host star. This work helps to motivate such planet searches by predicting a population of young giant planets that could be detectable by direct imaging campaigns. Both the classical core accretion and the gravitational instability model for planet formation are hard-pressed to form such planets in situ. Therefore, direct imaging searches have traditionally appealed to the possibility of in situ planet formation via a large scale gravitational instability. Here, we show that dynamical instabilities among planetary systems that originally formed multiple giant planets much closer to the host star could produce a population of giant planets at large separations. The number and distribution of such planets is a strong function of time, complicating the statistical analysis of direct imaging surveys. The number and radial distribution of such planets is related to the number of giant planets formed per host star and the timescale for the disk evolution. Thus, direct imaging programs with sufficient sensitivity and survey size could place interesting constraints on planet formation models.

Original languageEnglish (US)
Title of host publicationExtrasolar Planets in Multi-Body Systems
Subtitle of host publicationTheory and Observations
Pages419-426
Number of pages8
DOIs
StatePublished - Dec 1 2010
EventInternational Conference Eztrasolar Planets in Multi-Body Systems: Theory and Observations - Torun, Poland
Duration: Aug 25 2008Aug 29 2008

Publication series

NameEAS Publications Series
Volume42
ISSN (Print)1633-4760
ISSN (Electronic)1638-1963

Other

OtherInternational Conference Eztrasolar Planets in Multi-Body Systems: Theory and Observations
CountryPoland
CityTorun
Period8/25/088/29/08

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Veras, D., Crepp, J. R., & Ford, E. B. (2010). Survival and detectability of long period planets beyond 100 AU. In Extrasolar Planets in Multi-Body Systems: Theory and Observations (pp. 419-426). (EAS Publications Series; Vol. 42). https://doi.org/10.1051/eas/1042045