Results 11 to 20 of about 79,410 (285)

Star-planet Interactions [PDF]

Astronomy & Astrophysics, 2016
Among the numerous lessons learnt thanks to the CoRoT mission, it is now clear that stellar systems should be considered as a whole, i.e. including both the planets and their host star. While the communities interested in exo-planetary sciences and stellar physics were bound together by the same instrument, CoRoT, it soon appeared that they share a ...
LANZA, Antonino Francesco, Ferraz-Mello, S., CoRot Team   +2 more
core   +13 more sources

Star-planet interactions [PDF]

, 2014
Stars interact with their planets through gravitation, radiation, and magnetic fields. I shall focus on the interactions between late-type stars with an outer convection zone and close-in planets, i.e., with an orbital semimajor axis smaller than approximately 0.15 AU.
Lanza, A. F.
openaire   +5 more sources

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, Bohlender, David, Walker, Gordon A., Collier Cameron, Andrew   +3 more
openaire   +5 more sources

Star-planet interactions [PDF]

Astronomy & Astrophysics, 2017
The surface rotations of some red giants are so fast that they must have been spun up by tidal interaction with a close companion, either another star, a brown dwarf, or a planet. We focus here on the case of red giants that are spun up by tidal interaction with a planet.
Meynet, Georges, Eggenberger, Patrick, Privitera, Giovanni, Georgy, Cyril, Ekström, Sylvia, Alibert, Yann, Lovis, Christophe   +6 more
core   +4 more sources

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, Meynet, Georges, Eggenberger, Patrick, Haemmerlé, Lionel, Privitera, Giovanni, Georgy, Cyril, Ekström, Sylvia, Mordasini, Christoph   +7 more
openaire   +4 more sources

Models of Star-Planet Magnetic Interaction [PDF]

, 2017
23 pages, 10 figures, accepted as a chapter in the Handbook of ...
A Kopp, A McQuillan, A Strugarek, A Strugarek, A Strugarek, A Strugarek, A Strugarek, AA Vidotto, AF Lanza, AF Lanza, AF Lanza, AF Lanza, AF Lanza, AS Brun, AS Brun, BP Miller, C Damiani, C. Zanni, CA Jones, D Staab, EJ Weber, EL Shkolnik, EP Rubenstein, F Pont, FC Adams, FM Neubauer, Ignazio Pillitteri, J Bouvier, J Llama, J Saur, J Saur, J. D. Alvarado-Gómez, JD Alvarado-Gómez, JD Turner, JD Turner, JF Donati, JM Grießmeier, JT Clarke, K Poppenhaeger, L Fossati, M Cuntz, M. L. Khodachenko, ML Goodman, MW Mengel, O Cohen, O Cohen, O Cohen, O Cohen, O. Cohen, P Figueira, P Tremblin, P Zarka, PW Cauley, Randy O. Laine, RC Fleck, RO Laine, RVE Lovelace, S Duling, S Preusse, S Preusse, S Stanley, T Matsakos, VG Merkin, WH Ip, Xianzhe Jia   +64 more
openaire   +3 more sources

Chasing Star–Planet Magnetic Interactions: The Case of Kepler-78 [PDF]

The Astrophysical Journal, 2019
Abstract Observational evidence of star–planet magnetic interactions (SPMIs) in compact exosystems have been looked for in the past decades. Indeed, planets in close-in orbit can be magnetically connected to their host star and can channel Alfvén waves carrying large amounts of energy toward the central star.
A. Strugarek, A. S. Brun, J.-F. Donati, C. Moutou, V. Réville   +4 more
core   +14 more sources

Star–Planet Interactions: A Computational View

Annual Review of Astronomy and Astrophysics
There 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.
Aline A Vidotto
openaire   +4 more sources

Star-planet interactions [PDF]

Astronomy & Astrophysics, 2021
Context. Tidal interactions and planetary evaporation processes impact the evolution of close-in star–planet systems. Aims. We study the impact of stellar rotation on these processes. Methods. We compute the time evolution of star–planet systems consisting of a planet with an initial mass between 0.02 and 2.5 MJup (6 and 800 MEarth) in a quasi-circular
Rao, Suvrat, Meynet, Georges, Eggenberger, Patrick, Haemmerlé, Lionel, Privitera, Giovanni, Georgy, Cyril, Ekström, Sylvia, Mordasini, Christoph   +7 more
  +6 more sources

Star–planet interaction

Astronomy & Astrophysics, 2022
Context. Electromagnetic star-planet interaction (SPI) describes the phenomenon of a planet coupling to its host star via electromagnetic forces. Alfvén waves can establish such a coupling by forming Alfvén wings. Star-planet interaction allows for phenomena that we do not otherwise know from the Solar System.
Fischer, C., Saur, J.
openaire   +3 more sources