The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Temperate Earth-sized planets transiting a nearby ultracool dwarf star
Open accessAbstract
Star-like objects with effective temperatures of less than 2,700 kelvin are referred to as ‘ultracool dwarfs’. This heterogeneous group includes stars of extremely low mass as well as brown dwarfs (substellar objects not massive enough to sustain hydrogen fusion), and represents about 15 per cent of the population of astronomical objects near the Sun. Core-accretion theory predicts that, given the small masses of these ultracool dwarfs, and the small sizes of their protoplanetary disks, there should be a large but hitherto undetected population of terrestrial planets orbiting them—ranging from metal-rich Mercury-sized planets to more hospitable volatile-rich Earth-sized planets. Here we report observations of three short-period Earth-sized planets transiting an ultracool dwarf star only 12 parsecs away. The inner two planets receive four times and two times the irradiation of Earth, respectively, placing them close to the inner edge of the habitable zone of the star. Our data suggest that 11 orbits remain possible for the third planet, the most likely resulting in irradiation significantly less than that received by Earth. The infrared brightness of the host star, combined with its Jupiter-like size, offers the possibility of thoroughly characterizing the components of this nearby planetary system.
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Cites
The Two Micron All Sky Survey (2MASS)
Skrutskie, M. F., Cutri, R. M., Stiening, R., Weinberg, M. D., Schneider, S., Carpenter, J. M., Beichman, C., Capps, R., Chester, T., Elias, J., et al. (2006) · The Astronomical Journal · doi:10.1086/498708 · Cited by 12,019
Habitable Zones around Main Sequence Stars
Kasting, J. F., Whitmire, D. P., & Reynolds, R. T. (1993) · Icarus · doi:10.1006/icar.1993.1010 · Cited by 2,501
A hybrid symplectic integrator that permits close encounters between massive bodies
Chambers, J. E. (1999) · Monthly Notices of the Royal Astronomical Society · doi:10.1046/j.1365-8711.1999.02379.x · Cited by 1,820
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
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
Self-citationA Decreased Probability of Habitable Planet Formation around Low‐Mass Stars
Raymond, S. N., Scalo, J., & Meadows, V. S. (2007) · The Astrophysical Journal · doi:10.1086/521587 · Cited by 210
Water contents of Earth-mass planets around M dwarfs
Tian, F., & Ida, S. (2015) · Nature Geoscience · doi:10.1038/ngeo2372 · Cited by 162
Tidal Heating of Earth-like Exoplanets around M Stars: Thermal, Magnetic, and Orbital Evolutions
Driscoll, P. E., & Barnes, R. (2015) · Astrobiology · doi:10.1089/ast.2015.1325 · Cited by 125
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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
“Nevertheless, if some water survived the hot early phase of the system 28 , the irradiation received by planets (b,c,d) are still low enough to make possible for limited regions on their surfaces to harbour liquid water 1,7 .”
Self-citationOptimized 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
Reflections on O 2 as a Biosignature in Exoplanetary Atmospheres
Meadows, V. S. (2017) · Astrobiology · doi:10.1089/ast.2016.1578 · Cited by 173
Assessing the Habitability of the TRAPPIST-1 System Using a 3D Climate Model
Wolf, E. T. (2017) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/aa693a · Cited by 172
Cause of Cambrian Explosion - Terrestrial or Cosmic?
Steele, E. J., Al-Mufti, S., Augustyn, K. A., Chandrajith, R., Coghlan, J. P., Coulson, S. G., Ghosh, S., Gillman, M., Gorczynski, R. M., Klyce, B., et al. (2018) · Progress in Biophysics and Molecular Biology · doi:10.1016/j.pbiomolbio.2018.03.004 · Cited by 65
Metadata
- Authors
- Gillon, M., Jehin, E., Lederer, S. M., Delrez, L., de Wit, J., Burdanov, A., Van Grootel, V., Burgasser, A. J., Triaud, A. H. M. J., Opitom, C., Demory, B.-O., Sahu, D. K., Bardalez Gagliuffi, D., Magain, P., & Queloz, D.
- Venue
- Nature
- Published
- 2016-05-02
- Volume
- 533
- Issue
- 7602
- Pages
- 221-224
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2343190161
- Cited by
- 647
- References
- 8
- FWCI
- 49.97
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Gillon, M., Jehin, E., Lederer, S. M., Delrez, L., de Wit, J., Burdanov, A., Van Grootel, V., Burgasser, A. J., Triaud, A. H. M. J., Opitom, C., Demory, B.-O., Sahu, D. K., Bardalez Gagliuffi, D., Magain, P., & Queloz, D. (2016). Temperate Earth-sized planets transiting a nearby ultracool dwarf star. Nature. https://doi.org/10.1038/nature17448
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