Results 11 to 20 of about 1,706 (153)
Star-planet interactions [PDF]
Astronomy & Astrophysics, 2018 Context. When planets are formed from the protoplanetary disk and after the disk has dissipated, the evolution of their orbits is governed by tidal interactions, friction, and gravitational drag, and also by changes in the mass of the star and planet. These interactions may change the initial distribution of the distances between the planets and their ...
Rao, Suvrat +7 more
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The On/Off Nature of Star‐Planet Interactions [PDF]
The Astrophysical Journal, 2008 Evidence suggesting an observable magnetic interaction between a star and its hot Jupiter appears as a cyclic variation of stellar activity synchronized to the planet's orbit. In this study, we monitored the chromospheric activity of 7 stars with hot Jupiters using new high-resolution echelle spectra collected with ESPaDOnS over a few nights in 2005 ...
Shkolnik, Evgenya +3 more
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Star–Planet Interactions: A Computational View
Annual Review of Astronomy and AstrophysicsThere are several physical processes that mediate the interaction between an exoplanet and its host star, with the four main ones being due to magnetic, particle (stellar outflow), radiative, and tidal interactions. These interactions can be observed at different wavelengths, from X-ray to radio.
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Signatures of Star-Planet Interactions [PDF]
, 2017 Accepted for publication in the handbook of ...
Shkolnik, Evgenya L., Llama, Joe
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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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ON THE DETECTABILITY OF STAR-PLANET INTERACTION [PDF]
The Astrophysical Journal, 2012 Magnetic (or tidal) interactions between "hot Jupiters" and their host stars can potentially enhance chromospheric and coronal activity. An ideal testbed for investigating this effect is provided by the extreme WASP-18 system, which features a massive (~10 times Jupiter) close-in (~1 day period) transiting planet orbiting a young F6 star. Optical and X-
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.
Scott J. Wolk +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 interaction through spectral lines [PDF]
Proceedings of the International Astronomical Union, 2019 AbstractThe growth of spectroscopic observations of exoplanetary systems allows the possibility of testing theoretical models and studying the interaction that exoplanetary atmospheres have with the wind and the energetic photons from the star.
C. Villarreal D’Angelo +5 more
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