Results 11 to 20 of about 79,370 (261)
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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Stellar Magnetism and starspots: the implications for exoplanets [PDF]
, 2013 Stellar variability induce by starspots can hamper the detection of exoplanets and bias planet property estimations. These features can also be used to study star-planet interactions as well as inferring properties from the underlying stellar dynamo ...
del Burgo, Carlos +2 more
core +1 more source
POSSIBLE CONSTRAINTS ON EXOPLANET MAGNETIC FIELD STRENGTHS FROM PLANET-STAR INTERACTION [PDF]
The Astrophysical Journal, 2010 Submitted to ApJ, 35 pages, 6 ...
openaire +2 more sources
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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THE REFLECTION EFFECT IN INTERACTING BINARIES OR IN PLANET-STAR SYSTEMS [PDF]
The Astronomical Journal, 2011 There are many similarities between interacting binary stars and stars with a close-in giant extrasolar planet. The reflection effect is a well-known example. Although the generally accepted treatment of this effect in interacting binaries is successful in fitting light curves of eclipsing binaries, it is not very suitable for studying cold objects ...
openaire +2 more sources
HATS-18 b: An Extreme Short--Period Massive Transiting Planet Spinning Up Its Star [PDF]
, 2016 We report the discovery by the HATSouth network of HATS-18 b: a 1.980 +/- 0.077 Mj, 1.337 +0.102 -0.049 Rj planet in a 0.8378 day orbit, around a solar analog star (mass 1.037 +/- 0.047 Msun, and radius 1.020 +0.057 -0.031 Rsun) with V=14.067 +/- 0.040 ...
Bakos, Gaspar A. +21 more
core +2 more sources
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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The magnetic properties of the planet host star Kepler-78 [PDF]
, 2016 Kepler-78 is host to a transiting 8.5-hour orbit super-Earth. In this paper, the rotation and magnetic properties of the planet host star are studied. We first revisit the Kepler photometric data for a detailed description of the rotation properties of ...
Donati, Jean-Francois +4 more
core +8 more sources
Planet formation, orbital evolution and planet-star tidal interaction
, 1998 We consider several processes operating during the late stages of planet formation that can affect observed orbital elements. Disk-planet interactions, tidal interactions with the central star, long term orbital instability and the Kozai mechanism are discussed.
Lin, D +4 more
openaire +3 more sources
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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