Results 101 to 110 of about 3,219 (219)

Set to Music, Exoplanets Reveal Insights on Their Formation

Eos, 2019
Sonification hints at how some Kepler planets may have been configured in the late stages of their development.
openaire   +1 more source

The Polar Orbit of TOI-2374 b, a Planet in the Neptunian Ridge

The Astronomical Journal
The “Neptunian ridge” is a recently identified peak in the frequency of planets with sizes between that of Neptune and Saturn orbiting their host stars with periods between 3 and 6 days.
Samuel W. Yee, Patrick Tamburo, Gudmundur Stefánsson, Juliana García-Mejía, David Charbonneau, Khalid Barkaoui, Karen A. Collins, Richard P. Schwarz, Norio Narita, Akihiko Fukui, Andrew W. Howard, Howard Isaacson, Benjamin J. Fulton, Fei Dai   +13 more
doaj   +1 more source

Unraveling Exoplanet Formation and Evolution with Precise Kinematic Ages [PDF]

, 2023
Tidal interactions between short-period planets and their host stars circularize eccentric orbits, realign angular momenta, alter rotation periods, and remove energy from a planet's orbit.
Hamer, Jacob Howard
core  

Dependence of Planet Populations on Stellar Mass and Metallicity: A Pebble-accretion-based Planet Population Synthesis Model

The Astrophysical Journal
The formation and evolution of planetary systems are linked to their host stellar environment. In this study, we employ a pebble-accretion-based planet population synthesis model to explore the correlation between planetary properties and stellar mass ...
Mengrui Pan, Beibei Liu, Linjie Jiang, Jiwei Xie, Wei Zhu, Ignasi Ribas   +5 more
doaj   +1 more source

Individual and Statistical Characterization of the Giant Exoplanet Population [PDF]

, 2021
The field of observational exoplanet astronomy has seen tremendous progress over the span of only a few decades. Now, we find ourselves at the dawn of a new era: the characterization of distant worlds.
Herman, Miranda Katelyn
core   +1 more source

Testing the Origin of Hot Jupiters with Atmospheric Surveys

The Astrophysical Journal
In spite of their long detection history, the origin of hot Jupiters remains to be resolved. While dynamical evidence suggests high-eccentricity migration is most likely, conflicts remain when considering hot Jupiters as a population in the context of ...
Lina D’Aoust, Ben Coull-Neveu, Eve J. Lee, Nicolas B. Cowan   +3 more
doaj   +1 more source

Resonant and Ultra-short-period Planet Systems Are at Opposite Ends of the Exoplanet Age Distribution

The Astronomical Journal
Exoplanet 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, Kevin C. Schlaufman, Jacob H. Hamer   +2 more
doaj   +1 more source

The Clear Sky Corridor: Insights Towards Aerosol Formation in Exoplanets Using an AI-based Survey of Exoplanet Atmospheres

The Astronomical Journal
Abstract Producing optimized and accurate transmission spectra of exoplanets from telescope data has traditionally been a manual and labor intensive procedure. Here we present the results of the first attempt to improve and standardize this procedure by using artificial-intelligence-based (AI-based) processing of light curves and ...
Reza Ashtari, Kevin B. Stevenson, David Sing, Mercedes López-Morales, Munazza K. Alam, Nikolay K. Nikolov, Thomas M. Evans-Soma   +6 more
openaire   +3 more sources

Peas-in-a-pod across the Radius Valley: Rocky Systems Are Less Uniform in Mass but More Uniform in Size and Spacing

The Astrophysical Journal Letters
The ubiquity of “peas-in-a-pod” architectural patterns and the existence of the radius valley each presents a striking population-level trend for planets with R _p ≤ 4 R _⊕ that serves to place powerful constraints on the formation and evolution of these
Armaan V. Goyal, Songhu Wang
doaj   +1 more source

Exoplanet formation inference using conditional invertible neural networks

CoRR
The interpretation of the origin of observed exoplanets is usually done only qualitatively due to uncertainties of key parameters in planet formation models. To allow a quantitative methodology which traces back in time to the planet birth locations, we train recently developed conditional invertible neural networks (cINN) on synthetic data from a ...
Remo Burn, Victor Ksoll, Hubert Klahr, Thomas Henning   +3 more
openaire   +2 more sources