The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
MASS–RADIUS RELATION FOR ROCKY PLANETS BASED ON PREM
Open accessAbstract
Several small dense exoplanets are now known, inviting comparisons to Earth and Venus. Such comparisons require translating their masses and sizes to composition models of evolved multi-layer interior planets. Such theoretical models rely on our understanding of the Earth’s interior, as well as independently derived equations of state, but so far have not involved direct extrapolations from Earth’s seismic model: the Preliminary Reference Earth Model (PREM). To facilitate more detailed compositional comparisons between small exoplanets and the Earth, we derive here a semi-empirical mass–radius relation for two-layer rocky planets based on PREM, , where CMF stands for core mass fraction. It is applicable to 1 ∼ 8 M ⊕ and a CMF of 0.0 ∼ 0.4. Applying this formula to Earth and Venus and several known small exoplanets with radii and masses measured to better than ∼30% precision gives a CMF fit of 0.26 ± 0.07.
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Cites
A super-Earth transiting a nearby low-mass star
Charbonneau, D., Berta, Z. K., Irwin, J., Burke, C. J., Nutzman, P., Buchhave, L. A., Lovis, C., Bonfils, X., Latham, D. W., Udry, S., et al. (2009) · Nature · doi:10.1038/nature08679 · Cited by 797
An Earth-sized planet with an Earth-like density
Pepe, F., Cameron, A. C., Latham, D. W., Molinari, E., Udry, S., Bonomo, A. S., Buchhave, L. A., Charbonneau, D., Cosentino, R., Dressing, C. D., et al. (2013) · Nature · doi:10.1038/nature12768 · Cited by 220 · cited 3×
“With exquisite sizes (mostly from Kepler light curves) and huge follow-up effort (Dressing et al. 2015; Pepe et al. 2013; Batalha et al. 2011; Ballard et al. 2013; Carter et al. 2012; Hatzes et al. 2011; Berta-Thompson et al. 2015) the mass-radius diagram is finally amenable to some detailed…”
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Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
Gillon, M., Triaud, A. H. M. J., Demory, B.-O., Jehin, E., Agol, E., Deck, K. M., Lederer, S. M., de Wit, J., Burdanov, A., Ingalls, J. G., et al. (2017) · Nature · doi:10.1038/nature21360 · Cited by 1,555
Implications of tides for life on exoplanets
Lingam, M., & Loeb, A. (2017) · arXiv · doi:10.48550/arxiv.1707.04594 · Cited by 37
Metadata
- Authors
- Zeng, L., Sasselov, D. D., & Jacobsen, S. B.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2016-03-08
- Volume
- 819
- Issue
- 2
- Pages
- 127
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2207254951
- Cited by
- 432
- References
- 2
- FWCI
- 21.65
- Type
- journal article
- Language
- en
- Open access
- bronze
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