Migration and Evolution of giant ExoPlanets (MEEP). I. Nine Newly Confirmed Hot Jupiters from the TESS Mission [PDF]
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 +12 more sources
Signatures of Atmospheric Mass Loss and Planet Migration in the Time Evolution of Short-period Transiting Exoplanets [PDF]
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 +6 more sources
The Exoplanet Radius Valley from Gas-driven Planet Migration and Breaking of Resonant Chains [PDF]
The 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
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PROTOSTELLAR CLOUD FRAGMENTATION AND INWARD MIGRATION BY DISK CAPTURE AS THE ORIGIN OF MASSIVE EXOPLANETS [PDF]
The Astrophysical Journal, 2009 A new model for the formation of Jovian planets is proposed. We consider planets forming at large distances from a protostar (>100 AU) through direct fragmentation of a gas cloud, by the same formation mechanism as wide stellar and brown dwarf binaries. We model the gravitational evolution of a system of these distant planets and a second population
Andreu Font-Ribera +2 more
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Statistical properties of exoplanets. I. The period distribution: constraints for the migration scenario [PDF]
Astronomy & Astrophysics, 2003 Accepted in A& ...
S. Udry, M. Mayor, N. C. Santos
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DISCERNING EXOPLANET MIGRATION MODELS USING SPIN-ORBIT MEASUREMENTS [PDF]
The Astrophysical Journal, 2011 9 pages, 8 figures, ApJ responded to ...
Timothy D. Morton, John Asher Johnson
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Quantifying Orbital Migration from Exoplanet Statistics and Host Metallicities [PDF]
The 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 ...
Ken Rice, Philip J. Armitage
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Exoplanets in Open Clusters and Binaries: New Constraints on Planetary Migration
, 2022 In this dissertation, we present three complementary studies of the processes that drive planetary migration. The first is a radial-velocity survey in search of giant planets in adolescent (Gyr) open clusters. While several different mechanisms may act to drive giant planets inward, only some mechanisms will excite high eccentricities while doing so ...
Samuel N. Quinn
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Orbital migration and the period distribution of exoplanets [PDF]
Astronomy & Astrophysics, 2005 published in A& ...
Antonino Del Popolo +2 more
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THE SIGNATURE OF THE ICE LINE AND MODEST TYPE I MIGRATION IN THE OBSERVED EXOPLANET MASS-SEMIMAJOR AXIS DISTRIBUTION [PDF]
The Astrophysical Journal, 2009 15 pages, 6 figures, and 1 table in preprint format; accepted for publication in ...
Kevin C. Schlaufman +2 more
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