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Hot planets around ...
Hot planets around cool stars - two short-period mini-Neptunes transiting the late K-dwarf TOI-1260
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- Georgieva, Iskra, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Persson, Carina, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Barragan, O. (author)
- University Of Oxford
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- Nowak, G. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Fridlund, Malcolm, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Locci, D. (author)
- Istituto nazionale di astrofisica (INAF)
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- Palle, E. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Luque, R. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Carleo, I (author)
- Wesleyan University
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- Gandolfi, D. (author)
- Universita degli Studi di Torino,University of Turin
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Kane, S. R. (author)
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- Korth, Judith, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Stassun, K. G. (author)
- Vanderbilt University
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- Livingston, J.H. (author)
- University of Tokyo, Japan
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- Matthews, E. C. (author)
- Université de Genève,University of Geneva,Massachusetts Institute of Technology (MIT)
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- Collins, K. A. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Howell, S. B. (author)
- NASA Ames Research Center
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- Serrano, L. M. (author)
- Universita degli Studi di Torino,University of Turin
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- Albrecht, S. (author)
- Århus Universitet,Aarhus University,Nordic Optical Telescope
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- Bieryla, A. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Brasseur, C. E. (author)
- Space Telescope Science Institute (STScI)
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- Ciardi, D. (author)
- California Institute of Technology (Caltech)
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- Cochran, W. D. (author)
- The University of Texas at Austin, USA
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- Colon, K. D. (author)
- NASA Goddard Space Flight Center
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- Crossfield, I. J. M. (author)
- University of Kansas
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- Csizmadia, Sz (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Deeg, H. J. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Esposito, M. (author)
- Thüringer Landessternwarte Tautenburg
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- Furlan, E. (author)
- California Institute of Technology (Caltech)
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- Gan, T. (author)
- Tsinghua University
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- Goffo, E. (author)
- Universita degli Studi di Torino,University of Turin
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Gonzales, E. (author)
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- Grziwa, S. (author)
- Universität zu Köln,University of Cologne
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- Guenther, E. W. (author)
- Thüringer Landessternwarte Tautenburg
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Guerra, P. (author)
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- Hirano, T. (author)
- National Institutes of Natural Sciences (NINS)
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- Jenkins, J. M. (author)
- NASA Ames Research Center
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- Jensen, E. L. N. (author)
- Swarthmore College
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- Kabath, P. (author)
- Czech Academy of Sciences
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- Knudstrup, E. (author)
- Århus Universitet,Aarhus University,Nordic Optical Telescope
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- Lam, K. W. F. (author)
- Technische Universität Berlin
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- Latham, D. W. (author)
- Harvard-Smithsonian Center for Astrophysics
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Matson, R. A. (author)
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- Osborne, H. L. M. (author)
- University College London (UCL)
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McDermott, S. (author)
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- Paegert, M. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Quinn, S. N. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Redfield, S. (author)
- Wesleyan University
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- Ricker, G. R. (author)
- Massachusetts Institute of Technology (MIT)
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- Schlieder, J. E. (author)
- NASA Goddard Space Flight Center
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- Scott, N. J. (author)
- NASA Ames Research Center
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- Seager, S. (author)
- Massachusetts Institute of Technology (MIT)
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- Smith, A. M. S. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Tenenbaum, P. (author)
- NASA Ames Research Center,SETI Institute
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- Twicken, J. D. (author)
- SETI Institute,NASA Ames Research Center
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- Vanderspek, R. (author)
- Massachusetts Institute of Technology (MIT)
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- Van Eylen, V. (author)
- University College London (UCL)
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- Winn, J. N. (author)
- Princeton University
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(creator_code:org_t)
- 2021-05-22
- 2021
- English.
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In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 505:4, s. 4684-4701
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https://research.cha... (primary) (free)
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https://dspace.mit.e...
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Abstract
Subject headings
Close
- We present the discovery and characterization of two sub-Neptunes in close orbits, as well as a tentative outer planet of a similar size, orbiting TOI-1260 - a low metallicity K6V dwarf star. Photometry from Transiting Exoplanet Survey Satellite(TESS) yields radii of R-b = 2.33 +/- 0.10 and R-c = 2.82 +/- 0.15 R-circle plus, and periods of 3.13 and 7.49 d for TOI-1260b and TOI-1260c, respectively. We combined the TESS data with a series of ground-based follow-up observations to characterize the planetary system. From HARPS-N high-precision radial velocities we obtain M-b = and M-c = M-circle plus. The star is moderately active with a complex activity pattern, which necessitated the use of Gaussian process regression for both the light-curve detrending and the radial velocity modelling, in the latter case guided by suitable activity indicators. We successfully disentangle the stellar-induced signal from the planetary signals, underlining the importance and usefulness of the Gaussian process approach. We test the system's stability against atmospheric photoevaporation and find that the TOI-1260 planets are classic examples of the structure and composition ambiguity typical for the 2-3 R-circle plus range.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
- NATURVETENSKAP -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Probability Theory and Statistics (hsv//eng)
Keyword
- planetary systems
- planets and satellites: individual: TOI-1260b, c
- stars: low-mass
- techniques: radial velocities
- planets and satellites: composition
- techniques: photometric
- planets and satellites: atmospheres
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Georgieva, Iskra ...
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Persson, Carina, ...
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Barragan, O.
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Nowak, G.
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Fridlund, Malcol ...
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Locci, D.
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show more...
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Palle, E.
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Luque, R.
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Carleo, I
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Gandolfi, D.
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Kane, S. R.
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Korth, Judith, 1 ...
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Stassun, K. G.
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Livingston, J.H.
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Matthews, E. C.
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Collins, K. A.
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Howell, S. B.
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Serrano, L. M.
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Albrecht, S.
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Bieryla, A.
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Brasseur, C. E.
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Ciardi, D.
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Cochran, W. D.
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Colon, K. D.
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Crossfield, I. J ...
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Csizmadia, Sz
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Deeg, H. J.
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Esposito, M.
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Furlan, E.
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Gan, T.
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Goffo, E.
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Gonzales, E.
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Grziwa, S.
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Guenther, E. W.
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Guerra, P.
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Hirano, T.
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Jenkins, J. M.
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Jensen, E. L. N.
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Kabath, P.
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Knudstrup, E.
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Lam, K. W. F.
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Latham, D. W.
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Matson, R. A.
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Osborne, H. L. M ...
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McDermott, S.
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Paegert, M.
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Quinn, S. N.
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Redfield, S.
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Ricker, G. R.
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Schlieder, J. E.
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Scott, N. J.
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Seager, S.
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Smith, A. M. S.
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Tenenbaum, P.
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Twicken, J. D.
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Vanderspek, R.
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Van Eylen, V.
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Winn, J. N.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Other Chemistry ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Mathematics
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and Probability Theo ...
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Monthly Notices ...
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Chalmers University of Technology