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The Pan-Pacific Pla...
The Pan-Pacific Planet Search. VII. the Most Eccentric Planet Orbiting a Giant Star
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- Wittenmyer, Robert A. (author)
- University of New South Wales,University of Southern Queensland
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- Jones, M. I. (author)
- European Southern Observatory Santiago
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- Horner, Jonathan (author)
- University of Southern Queensland,University of New South Wales
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- Kane, Stephen R. (author)
- University of California, Riverside
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- Marshall, J. P. (author)
- University of Southern Queensland
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- Mustill, A. J. (author)
- Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science
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- Jenkins, J. S. (author)
- University of Chile
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- Rojas, P. A.Pena (author)
- University of Chile
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- Zhao, Jinglin (author)
- University of New South Wales
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- Villaver, Eva (author)
- Autonomous University of Madrid
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- Butler, R. P. (author)
- Carnegie Institution for Science
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- Clark, Jake (author)
- University of Southern Queensland
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(creator_code:org_t)
- 2017-12-01
- 2017
- English.
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In: The Astronomical Journal. - : American Astronomical Society. - 0004-6256 .- 1538-3881. ; 154:6
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Abstract
Subject headings
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- Radial velocity observations from three instruments reveal the presence of a 4 M Jup planet candidate orbiting the K giant HD 76920. HD 76920b has an orbital eccentricity of 0.856 ±0.009, making it the most eccentric planet known to orbit an evolved star. There is no indication that HD 76920 has an unseen binary companion, suggesting a scattering event rather than Kozai oscillations as a probable culprit for the observed eccentricity. The candidate planet currently approaches to about four stellar radii from its host star, and is predicted to be engulfed on a ∼100 Myr timescale due to the combined effects of stellar evolution and tidal interactions.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- planetary systems
- stars: evolution
- stars: individual (HD 76920)
- techniques: radial velocities
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Wittenmyer, Robe ...
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Jones, M. I.
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Horner, Jonathan
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Kane, Stephen R.
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Marshall, J. P.
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Mustill, A. J.
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show more...
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Jenkins, J. S.
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Rojas, P. A.Pena
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Zhao, Jinglin
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Villaver, Eva
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Butler, R. P.
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Clark, Jake
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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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The Astronomical ...
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Lund University