Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems [PDF]
, 2006 We present results of a reconnaissance for stellar companions to all 131 radial-velocity-detected candidate extrasolar planetary systems known as of July 1, 2005.
Beaulieu, Thom D. +6 more
core +2 more sources
TESS Hunt for Young and Maturing Exoplanets (THYME). VII. Membership, Rotation, and Lithium in the Young Cluster Group-X and a New Young Exoplanet [PDF]
Astronomical Journal, 2022 The public, all-sky surveys Gaia and TESS provide the ability to identify new young associations and determine their ages. These associations enable study of planetary evolution by providing new opportunities to discover young exoplanets.
E. Newton +38 more
semanticscholar +1 more source
Observational Constraints on the Formation and Evolution of Neptune-Class Exoplanets [PDF]
Space Science Reviews, 2020 21 pages, 6 ...
Deleuil, Magali +4 more
openaire +4 more sources
A Guide to Realistic Uncertainties on the Fundamental Properties of Solar-type Exoplanet Host Stars [PDF]
Astrophysical Journal, 2020 Our understanding of the properties and demographics of exoplanets critically relies on our ability to determine the fundamental properties of their host stars. The advent of Gaia and large spectroscopic surveys has now made it possible, in principle, to
J. Tayar +3 more
semanticscholar +1 more source
A Unified Treatment of Kepler Occurrence to Trace Planet Evolution. I. Methodology [PDF]
Astronomical Journal, 2023 We present Kepler exoplanet occurrence rates for planets between 0.5 and 16 R ⊕ and between 1 and 400 days. To measure occurrence, we use a nonparametric method via a kernel density estimator and use bootstrap random sampling for uncertainty estimation ...
A. Dattilo, N. Batalha, S. Bryson
semanticscholar +1 more source
TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain
The Astronomical Journal, 2023 Convergent disk migration has long been suspected to be responsible for forming planetary systems with a chain of mean-motion resonances (MMRs). Dynamical evolution over time could disrupt the delicate resonant configuration. We present TOI-1136, a 700 ±
Fei Dai +62 more
doaj +1 more source
The Apparent Tidal Decay of WASP-4 b Can Be Explained by the Rømer Effect
Universe, 2023 Tidal orbital decay plays a vital role in the evolution of hot Jupiter systems. As of now, this has only been observationally confirmed for the WASP-12 system.
Jan-Vincent Harre, Alexis M. S. Smith
doaj +1 more source
Evidence of Long-term Period Variations in the Exoplanet Transit Database (ETD) [PDF]
Astronomical Journal, 2022 We analyze a large number of citizen science data and identify eight hot Jupiter systems that show evidence for deviations from a constant orbital period: HAT-P-19 b, HAT-P-32 b, TrES-1 b, TrES-2 b, TrES-5 b, WASP-4 b, WASP-10 b, and WASP-12 b.
Simone R. Hagey, B. Edwards, A. Boley
semanticscholar +1 more source
The Evolution of Atmospheric Escape of Highly Irradiated Gassy Exoplanets
Proceedings of the International Astronomical Union, 2021 AbstractAtmospheric escape has traditionally been observed using hydrogen Lyman-α transits, but more recent detections utilise the metastable helium triplet lines at 1083nm. Capable of being observed from the ground, this helium signature offers new possibilities for studying atmospheric escape.
Andrew P. Allan +2 more
openaire +2 more sources
Odessa Astronomical Publications, 2017 Equations of exoplanet's motion connected with orbital Lindblad resonances with the account of secular terms caused by gravitational non-resonant perturbation are derived. Qualitative researches of orbital evolution modeling exoplanet systems are carried
B. R. Mushailov, A. K. Chuyas
doaj +1 more source