Planet-Planet Scattering Alone Cannot Explain the Free-Floating Planet Population
| dc.contributor.author | VERAS, Dimitri | |
| hal.structure.identifier | SSE 2012 | |
| dc.contributor.author | RAYMOND, Sean N. | |
| dc.date.created | 2012-01-10 | |
| dc.date.issued | 2012 | |
| dc.identifier.issn | 0035-8711 | |
| dc.description.abstractEn | Recent gravitational microlensing observations predict a vast population of free-floating giant planets that outnumbers main sequence stars almost twofold. A frequently-invoked mechanism for generating this population is a dynamical instability that incites planet-planet scattering and the ejection of one or more planets in isolated main sequence planetary systems. Here, we demonstrate that this process alone probably cannot represent the sole source of these galactic wanderers. By using straightforward quantitative arguments and N-body simulations, we argue that the observed number of exoplanets exceeds the plausible number of ejected planets per system from scattering. Thus, other potential sources of free-floaters, such as planetary stripping in stellar clusters and post-main-sequence ejection, must be considered. | |
| dc.language.iso | en | |
| dc.publisher | Oxford University Press (OUP): Policy P - Oxford Open Option A | |
| dc.subject.en | Astrophysics | |
| dc.subject.en | Earth and Planetary Astrophysics | |
| dc.title.en | Planet-Planet Scattering Alone Cannot Explain the Free-Floating Planet Population | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1111/j.1745-3933.2012.01218.x | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP] | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP] | |
| dc.identifier.arxiv | 1201.2175 | |
| bordeaux.journal | Monthly Notices of the Royal Astronomical Society | |
| bordeaux.page | L117-L121 | |
| bordeaux.volume | 421 | |
| bordeaux.issue | 1 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00666823 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00666823v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Monthly%20Notices%20of%20the%20Royal%20Astronomical%20Society&rft.date=2012&rft.volume=421&rft.issue=1&rft.spage=L117-L121&rft.epage=L117-L121&rft.eissn=0035-8711&rft.issn=0035-8711&rft.au=VERAS,%20Dimitri&RAYMOND,%20Sean%20N.&rft.genre=article |
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