The evolution of hot Jupiters revealed by the age distribution of their host stars. [PDF]
Proc Natl Acad Sci U S A, 2023 Significance Hot Jupiters are the first exoplanet population discovered around main-sequence stars. However, their origin and evolution remain puzzled.
Chen DC +13 more
europepmc +3 more sources
Evidence for Hidden Nearby Companions to Hot Jupiters [PDF]
The Astronomical Journal, 2023 The first discovered extrasolar worlds—giant, “hot Jupiter” planets on short-period orbits—came as a surprise to solar system–centric models of planet formation, prompting the development of new theories for planetary system evolution.
Dong-Hong Wu, Malena Rice, Songhu Wang
doaj +2 more sources
Emergent Spectral Fluxes of Hot Jupiters: An Abrupt Rise in Dayside Brightness Temperature Under Strong Irradiation [PDF]
The Astronomical Journal, 2023 We study the emergent spectral fluxes of transiting hot Jupiters, using secondary eclipses from Spitzer. To achieve a large and uniform sample, we have reanalyzed all secondary eclipses for all hot Jupiters observed by Spitzer at 3.6 and/or 4.5 μ m.
Drake Deming +7 more
doaj +2 more sources
On a Possible Solution to the Tidal Realignment Problem for Hot Jupiters. [PDF]
Astrophys J, 2021 Hot stars with hot Jupiters have a wide range of obliquities, while cool stars with hot Jupiters tend to have low obliquities. An enticing explanation for this pattern is tidal realignment of the cool host stars, although this explanation assumes that ...
Anderson KR, Winn JN, Penev K.
europepmc +3 more sources
Occurrence Rate of Hot Jupiters Around Early-type M Dwarfs Based on Transiting Exoplanet Survey Satellite Data [PDF]
The Astronomical Journal, 2022 We present an estimate of the occurrence rate of hot Jupiters (7 R _⊕ ≤ R _p ≤ 2 R _J , 0.8 ≤ P _b ≤ 10 days) around early-type M dwarfs based on stars observed by the Transiting Exoplanet Survey Satellite (TESS) during its primary mission.
Tianjun Gan +28 more
doaj +2 more sources
The Astrophysical Journal Supplement SeriesMany hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang +5 more
doaj +2 more sources
Extremely Irradiated Hot Jupiters: Non-Oxide Inversions, H- Opacity, and Thermal Dissociation of Molecules [PDF]
Astrophysical Journal, 2018 Extremely irradiated hot Jupiters, exoplanets reaching dayside temperatures ${>}$2000 K, stretch our understanding of planetary atmospheres and the models we use to interpret observations.
Barman, Travis +2 more
core +2 more sources
Hot Jupiters in binary star systems [PDF]
, 2007 Radial velocity surveys find Jupiter mass planets with semi-major axes a less than 0.1 AU around ~1% of solar-type stars; counting planets with $a$ as large as 5 AU, the fraction of stars having planets reaches ~ 10% {Marcy,Butler}. An examination of the
Duquennoy A. +6 more
core +2 more sources
Hot Jupiters and stellar magnetic activity [PDF]
, 2008 Recent observations suggest that stellar magnetic activity may be influenced by the presence of a close-by giant planet. Specifically, chromospheric hot spots rotating in phase with the planet orbital motion have been observed during some seasons in a ...
A. F. Lanza +28 more
core +4 more sources
Hot Jupiters Have Giant Companions: Evidence for Coplanar High-eccentricity Migration [PDF]
Astrophysical Journal Letters, 2023 This study considers the characteristics of planetary systems with giant planets based on a population-level analysis of the California Legacy Survey planet catalog. We identified three characteristics common to hot Jupiters (HJs).
Jon K. Zink, A. Howard
semanticscholar +1 more source