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Exoplanet Volatile Carbon Content as a Natural Pathway for Haze Formation [PDF]

open access: yesThe Astrophysical Journal Letters, 2023
We explore terrestrial planet formation with a focus on the supply of solid-state organics as the main source of volatile carbon. For the water-poor Earth, the water ice line, or ice sublimation front, within the planet-forming disk has long been a key ...
Edwin A. Bergin   +7 more
doaj   +6 more sources

Haze Formation in Warm H2-rich Exoplanet Atmospheres [PDF]

open access: goldThe Planetary Science Journal, 2020
New observing capabilities coming online over the next few years will provide opportunities for characterization of exoplanet atmospheres. However, clouds/hazes could be present in the atmospheres of many exoplanets, muting the amplitude of spectral ...
Chao He   +10 more
semanticscholar   +7 more sources

THE IMPRINT OF EXOPLANET FORMATION HISTORY ON OBSERVABLE PRESENT-DAY SPECTRA OF HOT JUPITERS [PDF]

open access: bronzeThe Astrophysical Journal, 2016
The composition of a planet’s atmosphere is determined by its formation, evolution, and present-day insolation. A planet’s spectrum therefore may hold clues on its origins.
C. Mordasini   +4 more
semanticscholar   +10 more sources

Understanding exoplanet formation, structure and evolution in 2010 [PDF]

open access: bronzeProceedings of the International Astronomical Union, 2010
In this short review, we summarize our present understanding (and non-understanding) of exoplanet formation, structure and evolution, in the light of the most recent discoveries.
G. Chabrier   +2 more
semanticscholar   +5 more sources

Sulfur-driven haze formation in warm CO2-rich exoplanet atmospheres [PDF]

open access: greenNature Astronomy, 2020
Sulfur gases substantially affect the photochemistry of planetary atmospheres in our Solar System, and are expected to be important components in exoplanet atmospheres.
Chao He   +10 more
semanticscholar   +8 more sources

A giant exoplanet orbiting a very-low-mass star challenges planet formation models [PDF]

open access: greenScience, 2019
A small star hosts a big planet M dwarfs, the most common type of star, are low-mass objects that emit most of their faint light in the near-infrared, making it difficult to detect any orbiting exoplanets. Morales et al.
J. C. Morales   +99 more
semanticscholar   +12 more sources

PLANETARY POPULATIONS IN THE MASS-PERIOD DIAGRAM: A STATISTICAL TREATMENT OF EXOPLANET FORMATION AND THE ROLE OF PLANET TRAPS [PDF]

open access: bronze, 2013
The rapid growth of observed exoplanets has revealed the existence of several distinct planetary populations in the mass–period diagram. Two of the most surprising are (1) the concentration of gas giants around 1 AU and (2) the accumulation of a large ...
Yasuhiro Hasegawa, Ralph E. Pudritz
openalex   +3 more sources

Evidence for Low-level Dynamical Excitation in Near-resonant Exoplanet Systems [PDF]

open access: yesThe Astronomical Journal, 2023
The geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions of exoplanet systems. Given that near-resonant systems have likely experienced minimal dynamical disruptions, the spin–orbit orientations of ...
Malena Rice   +20 more
doaj   +2 more sources

Clear and Cloudy Exoplanet Forecasts for JWST: Maps, Retrieved Composition, and Constraints on Formation with MIRI and NIRCam [PDF]

open access: bronzeAstronomical Journal, 2018
The James Webb Space Telescope (JWST) will measure exoplanet transmission and eclipse spectroscopy at unprecedented precisions to better understand planet structure, dynamics, chemistry, and formation.
Everett Schlawin   +4 more
openalex   +2 more sources

Dusty Belts Provide Clearer Insights into Exoplanet Formation

open access: bronzeEOS
Millimeter-wavelength observations of dust and pebbles in 74 star systems hint that planetary migrations might be more common than we realized.
Damond Benningfield
openalex   +2 more sources

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