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On the Relation between Hot Jupiters and the Roche Limit
Open accessAbstract
Many of the known extrasolar planets are "hot Jupiters," giant planets with orbital periods of just a few days. We use the observed distribution of hot Jupiters to constrain the location of its inner edge in the mass-period diagram. If we assume a slope corresponding to the classical Roche limit, then we find that the edge corresponds to a separation close to twice the Roche limit, as expected if the planets started on highly eccentric orbits that were later circularized. In contrast, any migration scenario would predict an inner edge right at the Roche limit, which applies to planets approaching on nearly circular orbits. However, the current sample of hot Jupiters is not sufficient to provide a precise constraint simultaneously on both the location and the slope of the inner edge.
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Citations
Cites
An extended upper atmosphere around the extrasolar planet HD209458b
Vidal-Madjar, A., des Etangs, A. L., Désert, J.-M., Ballester, G. E., Ferlet, R., Hébrard, G., & Mayor, M. (2003) · Nature · doi:10.1038/nature01448 · Cited by 1,208 · cited 1×
“HST observations of HD 209458 indicate absorption by matter presently beyond the Roche lobe of the planet and have been interpreted as evidence for a wind leaving the planet powered by stellar radiation (Vidal-Madjar et al. 2003, 2004).”
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Cited by
Cumming, A., Butler, R. P., Marcy, G. W., Vogt, S. S., Wright, J. T., & Fischer, D. A. (2008) · Publications of the Astronomical Society of the Pacific · doi:10.1086/588487 · Cited by 892
Dawson, R. I., & Johnson, J. A. (2018) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081817-051853 · Cited by 622
SECULAR CHAOS AND THE PRODUCTION OF HOT JUPITERS
Wu, Y., & Lithwick, Y. (2011) · The Astrophysical Journal · doi:10.1088/0004-637x/735/2/109 · Cited by 432
Hot Jupiters in Binary Star Systems
Wu, Y., Murray, N. W., & Ramsahai, J. M. (2007) · The Astrophysical Journal · doi:10.1086/521996 · Cited by 196
Dawson, R. I., Murray-Clay, R. A., & Johnson, J. A. (2014) · The Astrophysical Journal · doi:10.1088/0004-637x/798/2/66 · Cited by 106
Metadata
- Authors
- Ford, E. B., & Rasio, F. A.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2006-01-20
- Volume
- 638
- Issue
- 1
- Pages
- L45-L48
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2096775541
- Cited by
- 158
- References
- 1
- FWCI
- 6.56
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Ford, E. B., & Rasio, F. A. (2006). On the Relation between Hot Jupiters and the Roche Limit. The Astrophysical Journal. https://doi.org/10.1086/500734
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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