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- Smith, A. M. S. (author)
K2-137 b: an Earth-sized planet in a 4.3-h orbit around an M-dwarf
- Article/chapterEnglish2018
Publisher, publication year, extent ...
- 2017-11-08
- Oxford University Press (OUP),2018
- electronicrdacarrier
Numbers
- LIBRIS-ID:oai:research.chalmers.se:37be8445-e832-456f-9d7e-355da681a6fb
- https://research.chalmers.se/publication/500922URI
- https://research.chalmers.se/publication/254410URI
- https://doi.org/10.1093/mnras/stx2891DOI
- https://research.chalmers.se/publication/503047URI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- We report the discovery in K2's Campaign 10 of a transiting terrestrial planet in an ultra-short-period orbit around an M3-dwarf. K2-137 b completes an orbit in only 4.3 h, the second shortest orbital period of any known planet, just 4 min longer than that of KOI 1843.03, which also orbits an M-dwarf. Using a combination of archival images, adaptive optics imaging, radial velocity measurements, and light-curve modelling, we show that no plausible eclipsing binary scenario can explain the K2 light curve, and thus confirm the planetary nature of the system. The planet, whose radius we determine to be 0.89 ± 0.09 R⊕, and which must have an iron mass fraction greater than 0.45, orbits a star of mass 0.463 ± 0.052 M⊙ and radius 0.442 ± 0.044 R⊙.
Subject headings and genre
- NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
- NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
- planets and satellites: individual: K2-137 b
- planets and satellites: detection
Added entries (persons, corporate bodies, meetings, titles ...)
- Cabrera, J. (author)
- Csizmadia, Sz. (author)
- Dai, F. (author)
- Gandolfi, D. (author)
- Hirano, T. (author)
- Winn, J. N. (author)
- Albrecht, S. (author)
- Alonso, R. (author)
- Antoniciello, G. (author)
- Barragán, O. (author)
- Deeg, H. (author)
- Eigmüller, Ph. (author)
- Endl, M. (author)
- Erikson, A. (author)
- Fridlund, Malcolm,1952Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)malfri (author)
- Fukui, A. (author)
- Grziwa, S. (author)
- Guenther, E. W. (author)
- Hatzes, A. (author)
- Hidalgo, D. (author)
- Howard, A. W. (author)
- Isaacson, H. (author)
- Korth, J. (author)
- Kuzuhara, M. (author)
- Livingston, J. (author)
- Narita, N. (author)
- Nespral, D. (author)
- Nowak, G. (author)
- Palle, E. (author)
- Patzold, M. (author)
- Persson, Carina,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)carina64 (author)
- Petigura, E. (author)
- Prieto-Arranz, J. (author)
- Rauer, H. (author)
- Ribas, I. (author)
- Van Eylen, V. (author)
- Chalmers tekniska högskola (creator_code:org_t)
Related titles
- In:Monthly Notices of the Royal Astronomical Society: Oxford University Press (OUP)474:4, s. 5523-55330035-87111365-2966
Internet link
- http://publications.lib.chalmers.se/records/fulltext/254410/local_254410.pdfFULLTEXT
- https://academic.oup.com/mnras/article-pdf/474/4/5523/23271933/stx2891.pdf
- https://research.chalmers.se/publication/500922
- https://research.chalmers.se/publication/254410
- https://doi.org/10.1093/mnras/stx2891
- https://research.chalmers.se/publication/503047
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- Cabrera, J.
- Csizmadia, Sz.
- Dai, F.
- Gandolfi, D.
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- Winn, J. N.
- Albrecht, S.
- Alonso, R.
- Antoniciello, G.
- Barragán, O.
- Deeg, H.
- Eigmüller, Ph.
- Endl, M.
- Erikson, A.
- Fridlund, Malcol ...
- Fukui, A.
- Grziwa, S.
- Guenther, E. W.
- Hatzes, A.
- Hidalgo, D.
- Howard, A. W.
- Isaacson, H.
- Korth, J.
- Kuzuhara, M.
- Livingston, J.
- Narita, N.
- Nespral, D.
- Nowak, G.
- Palle, E.
- Patzold, M.
- Persson, Carina, ...
- Petigura, E.
- Prieto-Arranz, J ...
- Rauer, H.
- Ribas, I.
- Van Eylen, V.
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