The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.
A seven-planet resonant chain in TRAPPIST-1
Open accessAbstract
The TRAPPIST-1 system is the first transiting planet system found orbiting an ultracool dwarf star1. At least seven planets similar in radius to Earth were previously found to transit this host star2. Subsequently, TRAPPIST-1 was observed as part of the K2 mission and, with these new data, we report the measurement of an 18.77 day orbital period for the outermost transiting planet, TRAPPIST-1 h, which was previously unconstrained. This value matches our theoretical expectations based on Laplace relations3 and places TRAPPIST-1 h as the seventh member of a complex chain, with three-body resonances linking every member. We find that TRAPPIST-1 h has a radius of 0.752 R⊕ and an equilibrium temperature of 173 K. We have also measured the rotational period of the star to be 3.3 days and detected a number of flares consistent with a low-activity, middle-aged, late M dwarf. Orbital parameters for the seventh Earth-sized transiting planet around star TRAPPIST-1 are reported, along with an investigation into the complex three-body resonances linking every member of this planetary system.
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Cites
Storn, R., & Price, K. (1997) · Journal of Global Optimization · doi:10.1023/a:1008202821328 · Cited by 29,569
HABITABLE ZONES AROUND MAIN-SEQUENCE STARS: NEW ESTIMATES
Kopparapu, R. K., Ramirez, R., Kasting, J. F., Eymet, V., Robinson, T. D., Mahadevan, S., Terrien, R. C., Domagal-Goldman, S., Meadows, V., & Deshpande, R. (2013) · The Astrophysical Journal · doi:10.1088/0004-637x/765/2/131 · Cited by 1,615
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 · cited 3×
“satellites, satisfying (p, q) = (1, 2)—and in exoplanet systems, two of which were recently observed to have resonant chains among four planets: Kepler-22311 with (p, q) = (1, 1) and Kepler-8012 with (p, q) = (2, 3).”
BackgroundSelf-citationA box-fitting algorithm in the search for periodic transits
Kovács, G., Zucker, S., & Mazeh, T. (2002) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20020802 · Cited by 995
Leconte, J., Chabrier, G., Baraffe, I., & Levrard, B. (2010) · Astronomy and Astrophysics · doi:10.1051/0004-6361/201014337 · Cited by 348
Self-citationHYDROGEN GREENHOUSE PLANETS BEYOND THE HABITABLE ZONE
Pierrehumbert, R., & Gaidos, E. (2011) · The Astrophysical Journal · doi:10.1088/2041-8205/734/1/l13 · Cited by 295
Cited by
Optimized transit detection algorithm to search for periodic transits of small planets
Hippke, M., & Heller, R. (2019) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201834672 · Cited by 250
Implications of tides for life on exoplanets
Lingam, M., & Loeb, A. (2017) · arXiv · doi:10.48550/arxiv.1707.04594 · Cited by 37
Metadata
- Authors
- Luger, R., Sestovic, M., Kruse, E., Grimm, S. L., Demory, B.-O., Agol, E., Bolmont, E., Fabrycky, D., Fernandes, C. S., Van Grootel, V., Burgasser, A., Gillon, M., Ingalls, J. G., Jehin, E., Raymond, S. N., Selsis, F., Triaud, A. H. M. J., Barclay, T., Barentsen, G., Howell, S. B., Delrez, L., de Wit, J., Foreman-Mackey, D., Holdsworth, D. L., Leconte, J., Lederer, S., Turbet, M., Almleaky, Y., Benkhaldoun, Z., Magain, P., Morris, B. M., Heng, K., & Queloz, D.
- Venue
- Nature Astronomy
- Published
- 2017-05-22
- Volume
- 1
- Issue
- 6
- ISSN
- 2397-3366 (ISSN-L)
- OpenAlex
- W2595366317
- Cited by
- 365
- References
- 6
- FWCI
- 28.08
- Type
- journal article
- Language
- en
- Open access
- green
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