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K2-99 revisited: A ...
K2-99 revisited: A non-inflated warm Jupiter, and a temperate giant planet on a 522-d orbit around a subgiant
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- Smith, Alexis M. S. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Breton, S. N. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Csizmadia, Szilard (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Dai, F. (author)
- California Institute of Technology (Caltech)
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- Gandolfi, D. (author)
- Universita degli Studi di Torino,University of Turin
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- García, R. A. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Howard, A. W. (author)
- California Institute of Technology (Caltech)
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- Isaacson, H. (author)
- University of California
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- Korth, Judith, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lam, K. W.F. (author)
- Technische Universität Berlin,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Mathur, S. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Nowak, G. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Pérez Hernández, F. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Persson, Carina, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Albrecht, S. H. (author)
- Århus Universitet,Aarhus University
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- Barragán, O. (author)
- University Of Oxford
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- Cabrera, J. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Cochran, W. D. (author)
- The University of Texas at Austin, USA
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- Deeg, H. J. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Fridlund, Malcolm, 1952 (author)
- Universiteit Leiden (UL),Leiden University (UL),Chalmers tekniska högskola,Chalmers University of Technology
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- Georgieva, Iskra, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gof fo, E. (author)
- Universita degli Studi di Torino,University of Turin,Thüringer Landessternwarte Tautenburg
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- Guenther, E. W. (author)
- Thüringer Landessternwarte Tautenburg
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- Hatzes, A. (author)
- Thüringer Landessternwarte Tautenburg
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- Kabath, Petr (author)
- Czech Academy of Sciences
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- Livingston, J. H. (author)
- University of Tokyo, Japan
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- Luque, R. (author)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Palle, Enric (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Redfield, S. (author)
- Wesleyan University
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- Rodler, F. (author)
- European Southern Observatory Santiago
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- Serrano, L. M. (author)
- Universita degli Studi di Torino,University of Turin
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- Van Eylen, Vincent (author)
- University College London (UCL)
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(creator_code:org_t)
- 2021-12-02
- 2022
- English.
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In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 510:4, s. 5035-5049
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Abstract
Subject headings
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- We report new photometric and spectroscopic observations of the K2-99 planetary system. Asteroseismic analysis of the short-cadence light curve from K2's Campaign 17 allows us to refine the stellar properties. We find K2-99 to be significantly smaller than previously thought, with R = 2.55 ± 0.02 R. The new light curve also contains four transits of K2-99 b, which we use to improve our knowledge of the planetary properties. We find the planet to be a non-inflated warm Jupiter, with Rb = 1.06 ± 0.01 RJup. 60 new radial velocity measurements from HARPS, HARPS-N, and HIRES enable the determination of the orbital parameters of K2-99 c, which were previously poorly constrained. We find that this outer planet has a minimum mass Mcsin ic = 8.4 ± 0.2 MJup, and an eccentric orbit (ec = 0.210 ± 0.009) with a period of 522.2 ± 1.4 d. Upcoming TESS observations in 2022 have a good chance of detecting the transit of this planet, if the mutual inclination between the two planetary orbits is small.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- Planetary systems
- Planets and satellites: Individual: K2-99 b
- Planets and satellites: Individual: K2-99 c
- Planets and satellites: Detection
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Smith, Alexis M. ...
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Breton, S. N.
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Csizmadia, Szila ...
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Dai, F.
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Gandolfi, D.
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García, R. A.
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show more...
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Howard, A. W.
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Isaacson, H.
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Korth, Judith, 1 ...
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Lam, K. W.F.
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Mathur, S.
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Nowak, G.
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Pérez Hernández, ...
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Persson, Carina, ...
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Albrecht, S. H.
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Barragán, O.
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Cabrera, J.
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Cochran, W. D.
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Deeg, H. J.
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Fridlund, Malcol ...
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Georgieva, Iskra ...
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Gof fo, E.
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Guenther, E. W.
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Hatzes, A.
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Kabath, Petr
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Livingston, J. H ...
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Luque, R.
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Palle, Enric
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Redfield, S.
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Rodler, F.
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Serrano, L. M.
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Van Eylen, Vince ...
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- About the subject
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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 Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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Monthly Notices ...
- By the university
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Chalmers University of Technology