Results 1 to 10 of about 176 (87)
DISCERNING EXOPLANET MIGRATION MODELS USING SPIN-ORBIT MEASUREMENTS [PDF]
Astrophysical Journal, 2011 9 pages, 8 figures, ApJ responded to ...
Morton, Timothy D., Johnson, John Asher
exaly +4 more sources
The Exoplanet Radius Valley from Gas-driven Planet Migration and Breaking of Resonant Chains
Astrophysical Journal Letters, 2022 Abstract The size frequency distribution of exoplanet radii between 1 and 4R ⊕ is bimodal with peaks at ∼1.4 R ⊕ and ∼2.4 R ⊕, and a valley at ∼1.8 R ⊕. This radius valley separates two classes of planets—usually referred to as “super-Earths” and “mini-Neptunes”—and ...
André Izidoro +5 more
exaly +4 more sources
THE SIGNATURE OF THE ICE LINE AND MODEST TYPE I MIGRATION IN THE OBSERVED EXOPLANET MASS-SEMIMAJOR AXIS DISTRIBUTION [PDF]
Astrophysical Journal, 2009 15 pages, 6 figures, and 1 table in preprint format; accepted for publication in ...
Kevin C Schlaufman
exaly +3 more sources
Quantifying Orbital Migration from Exoplanet Statistics and Host Metallicities
Astrophysical Journal, 2005 We investigate how the statistical distribution of extrasolar planets may be combined with knowledge of the host stars' metallicity to yield constraints on the migration histories of gas giant planets. At any radius, planets that barely manage to form around the lowest metallicity stars accrete their envelopes just as the gas disk is being dissipated ...
Philip Armitage
exaly +3 more sources
The Astronomical JournalHot Jupiters were many of the first exoplanets discovered in the 1990s, but in the decades since their discovery the mysteries surrounding their origins have remained. Here we present nine new hot Jupiters (TOI-1855 b, TOI-2107 b, TOI-2368 b, TOI-3321 b,
Jack Schulte +74 more
doaj +8 more sources
The Astronomical JournalComparative studies of young and old exoplanet populations offer a glimpse into how planets may form and evolve with time. We present an occurrence rate study of short-period (
Rachel B. Fernandes +21 more
doaj +4 more sources
Orbital migration and the period distribution of exoplanets [PDF]
Astronomy & Astrophysics, 2005 published in A& ...
DEL POPOLO A, ERCAN N, YE, ILYURT IS.
openaire +5 more sources
exoMMR: A New Python Package to Confirm and Characterize Mean Motion Resonances
The Astronomical Journal, 2023 The study of orbital resonances allows for the constraint of planetary properties of compact systems. We can predict a system’s resonances by observing the orbital periods of the planets, as planets in or near mean motion resonance (MMR) have period ...
Mariah G. MacDonald +4 more
doaj +1 more source
Statistical properties of exoplanets [PDF]
Astronomy & Astrophysics, 2003 Accepted in A& ...
Udry, S., Mayor, M., Santos, N. C.
openaire +2 more sources
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