Results 91 to 100 of about 1,052,175 (256)
Orbital Migration Through Atmospheric Mass Loss
The Astronomical JournalAtmospheric mass loss is thought to have strongly shaped the sample of close-in exoplanets. These atmospheres should be lost isotropically, leading to no net migration on the planetary orbit.
Benjamin Hanf +4 more
doaj +1 more source
Photoevaporation Does Not Create a Pileup of Giant Planets at 1 AU [PDF]
, 2018 The semimajor axis distribution of giant exoplanets appears to have a pileup near 1 AU. Photoevaporation opens a gap in the inner few AU of gaseous disks before dissipating them. Here we investigate whether photoevaporation can significantly affect the final distribution of giant planets by modifying gas surface density and hence Type II migration ...
arxiv +1 more source
The mass-period distribution of close-in exoplanets
, 2011 The lower limit to the distribution of orbital periods P for the current population of close-in exoplanets shows a distinctive discontinuity located at approximately one Jovian mass. Most smaller planets have orbital periods longer than P~2.5 days, while
Anderson +30 more
core +1 more source
Additive Manufacturing Provides Infinite Possibilities for Self‐Sensing Technology
Advanced Science, Volume 11, Issue 28, July 24, 2024.Proprioception embedded in biological bodies can be migrated to smart devices, depending on the right configuration of materials and structures in the right place. Additive manufacturing technology can meet this very well, which provides unlimited possibilities for the preparation of self‐sensing intelligent devices.
Daobing Chen +4 more
wiley +1 more source
Signs of Similar Stellar Obliquity Distributions for Hot and Warm Jupiters Orbiting Cool Stars
The Astronomical JournalTransiting giant planets provide a natural opportunity to examine stellar obliquities, which offer clues about the origin and dynamical histories of close-in planets.
Marvin Morgan +5 more
doaj +1 more source
How fast do Jupiters grow? Signatures of the snowline and growth rate in the distribution of gas giant planets [PDF]
, 2012 We present here observational evidence that the snowline plays a significant role in the formation and evolution of gas giant planets. When considering the population of observed exoplanets, we find a boundary in mass-semimajor axis space that suggests ...
Horne, Keith +2 more
core +3 more sources
The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert [PDF]
, 2017 To investigate the origin of the features discovered in the exoplanet population, the knowledge of exoplanets' mass and radius with a good precision is essential.
O. Demangeon +33 more
semanticscholar +1 more source
Constraining stellar tidal quality factors from planet‐induced stellar spin‐up
Astronomische Nachrichten, Volume 345, Issue 5, June 2024.Abstract The dynamical evolution of tight star‐planet systems is influenced by tidal interactions between the star and the planet, as was shown recently. The rate at which spins and orbits in such a system evolve depends on the stellar and planetary tidal dissipation efficiency. Here, we present a method to constrain the modified tidal quality factor Q*
Nikoleta Ilić +3 more
wiley +1 more source
The Astronomical JournalExoplanet systems are thought to evolve on secular timescales over billions of years. This evolution is impossible to directly observe on human timescales in most individual systems.
Stephen P. Schmidt +2 more
doaj +1 more source
Orbital Decay of Hot Jupiters due to Weakly Nonlinear Tidal Dissipation
The Astrophysical Journal, 2023 We study tidal dissipation in hot Jupiter host stars due to the nonlinear damping of tidally driven g -modes, extending the calculations of Essick & Weinberg to a wide variety of stellar host types. This process causes the planet’s orbit to decay and has
Nevin N. Weinberg +5 more
doaj +1 more source