Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Exoplanet tides"'
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L29 (2024)
When orbiting hotter stars, hot Jupiters are often highly inclined relative to their host star equator planes. By contrast, hot Jupiters orbiting cooler stars are more aligned. Prior attempts to explain this correlation between stellar obliquity and
Externí odkaz:
https://doaj.org/article/92237e42980d4f298e431dbeb5457c75
Autor:
Emma M. Louden, Sarah C. Millholland
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 304 (2024)
There is an intriguing and growing population of Neptune-sized planets with stellar obliquities near ∼90°. One previously proposed formation pathway is a disk-driven resonance, which can take place at the end stages of planet formation in a system
Externí odkaz:
https://doaj.org/article/1e275b81521a432cbfba1f6659655ea9
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 128 (2024)
We propose a novel method to constrain the tidal quality factor, $Q^{\prime} $ , from an observed nonsynchronized star–planet system consisting of a slowly rotating low-mass star and a close-in Jovian planet, taking into account the coevolution of
Externí odkaz:
https://doaj.org/article/1973b601515342508f6da2597cf7fd13
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 159 (2024)
WASP-107 b seems to be a poster child of the long-suspected high-eccentricity migration scenario. It is on a 5.7 day, polar orbit. The planet is Jupiter-like in radius but Neptune-like in mass with exceptionally low density. WASP-107 c is on a 1100 d
Externí odkaz:
https://doaj.org/article/f98730b2963643c387ec18eaf79579a1
Publikováno v:
The Astronomical Journal, Vol 168, Iss 3, p 115 (2024)
We used the database of 1040 short-period (1 ≤ P < 200 days) exoplanets radial-velocity orbits to study the planetary eccentricity-period (PEP) distribution. We first divided the sample into low- and high-mass exoplanet subsamples based on the dist
Externí odkaz:
https://doaj.org/article/698faafd2aaa4693a6f2806d8b10b6f4
Autor:
Elisabeth R. Adams, Brian Jackson, Amanda A. Sickafoose, Jeffrey P. Morgenthaler, Hannah Worters, Hailey Stubbers, Dallon Carlson, Sakhee Bhure, Stijn Dekeyser, Chelsea X. Huang, Nevin N. Weinberg
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 7, p 163 (2024)
Ultrahot Jupiters (UHJs) are likely doomed by tidal forces to undergo orbital decay and eventual disruption by their stars, but the timescale over which this process unfolds is unknown. We present results from a long-term project to monitor UHJ trans
Externí odkaz:
https://doaj.org/article/f48ea698a3d64e13891997876be9bf5f
Autor:
Janosz W. Dewberry
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 180 (2024)
Tidal torques can alter the spins of tidally interacting stars and planets, usually over shorter timescales than the tidal damping of orbital separations or eccentricities. Simple tidal models predict that, in eccentric binary or planetary systems, r
Externí odkaz:
https://doaj.org/article/b07f8acde86b47dcaf905c2ba0dc7b2d
Autor:
Stephen R. Kane, Tara Fetherolf, Zhexing Li, Alex S. Polanski, Andrew W. Howard, Howard Isaacson, Teo Močnik, Sadie G. Welter
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 239 (2024)
The discovery of planetary systems beyond the solar system has revealed a diversity of architectures, most of which differ significantly from our system. The initial detection of an exoplanet is often followed by subsequent discoveries within the sam
Externí odkaz:
https://doaj.org/article/8d259cc89654406b86d1abfdea5c4ff0
Autor:
Qingru Hu, Malena Rice, Xian-Yu Wang, Songhu Wang, Avi Shporer, Johanna K. Teske, Samuel W. Yee, R. Paul Butler, Stephen Shectman, Jeffrey D. Crane, Karen A. Collins, Kevin I. Collins
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 175 (2024)
TOI-677 b is part of an emerging class of “tidally detached” gas giants ( a / R _⋆ ≳ 11) that exhibit large orbital eccentricities and yet low stellar obliquities. Such sources pose a challenge for models of giant planet formation, which must
Externí odkaz:
https://doaj.org/article/16a2a3afc5b54d9a85240e77bf01ef5b
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 1, p 34 (2024)
The orbital architectures of short-period exoplanet systems are shaped by tidal dissipation in their host stars. For low-mass M dwarfs whose dynamical tidal response comprises a dense spectrum of inertial modes at low frequencies, resolving the frequ
Externí odkaz:
https://doaj.org/article/0a58313c544345a1a3a5ae3d051c63e5