Results 21 to 30 of about 16,229 (284)
GJ 357 d: Potentially Habitable World or Agent of Chaos?
The Astronomical Journal, 2023 Multiplanet systems provide important laboratories for exploring dynamical interactions within the range of known exoplanetary system architectures. One such system is GJ 357, consisting of a low-mass host star and three orbiting planets, the outermost ...
Stephen R. Kane, Tara Fetherolf
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Interactions of exoplanets with their environment
Comptes Rendus. Physique, 2023 Exoplanets on close-in orbit are subject to intense interactions with their host star. They receive a strong irradiation from the star, trigger tides within their host, and stars and close-in planets can be magnetically connected.
Strugarek, Antoine
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The Pan-Pacific Planet Search. VII. the Most Eccentric Planet Orbiting a Giant Star [PDF]
, 2017 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.
Kane, Stephen R. +38 more
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A COMPREHENSIVE STATISTICAL ASSESSMENT OF STAR-PLANET INTERACTION [PDF]
The Astrophysical Journal, 2015 16 pages, 2 tables, 10 figures, accepted to ...
Miller, Brendan P. +3 more
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The Astronomical Journal, 2023 We leverage Gaia DR2 parallactic distances to deliver new or revised estimates of planetary parameters and X-ray irradiation for a distance-limited (≲100 pc) sample of 27 gaseous planets (from super-Earths to hot Jupiters) with publicly available Chandra
Riccardo Spinelli +6 more
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Observed effects of star-planet interaction [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractSince soon after the discovery of hot Jupiters, it had been suspected that interaction of these massive bodies with their host stars could give rise to observable signals. We discuss the observational evidence for star-planet interactions (SPI) of tidal and magnetic origin observed in X-rays and FUV.
Wolk, Scott J. +2 more
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TOI-1859b: A 64 Day Warm Jupiter on an Eccentric and Misaligned Orbit
The Astrophysical Journal Letters, 2023 Warm Jupiters are close-in giant planets with relatively large planet–star separations (i.e., 10 < a / R _⋆ < 100). Given their weak tidal interactions with their host stars, measurements of stellar obliquity may be used to probe the initial obliquity ...
Jiayin Dong +33 more
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Star-planet interactions and dynamical evolution of exoplanetary systems
EPJ Web of Conferences, 2015 The dynamical evolution of planetary systems, after the evaporation of the accretion disk, is the result of the competition between tidal dissipation and the net angular momentum loss of the system.
Damiani Cilia
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X-Ray Activity Variations and Coronal Abundances of the Star–Planet Interaction Candidate HD 179949
The Astrophysical Journal, 2023 We carry out detailed spectral and timing analyses of the Chandra X-ray data of HD 179949, a prototypical example of a star with a close-in giant planet with possible star–planet interaction (SPI) effects. We find a low coronal abundance A (Fe)/ A H) ≈ 0.
Anshuman Acharya +4 more
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III.9-1 Investigating star-planet interactions with CoRoT [PDF]
, 2016 Some results of the investigations on star-planet interactions based on the exquisite observations performed by the space experiment CoRoT are ...
A. F. Lanza +2 more
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