Results 11 to 20 of about 1,218 (212)
Exoplanet Volatile Carbon Content as a Natural Pathway for Haze Formation [PDF]
The 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
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THE INFLUENCE OF MAGNETIC FIELD GEOMETRY ON THE FORMATION OF CLOSE-IN EXOPLANETS [PDF]
The Astrophysical Journal Letters, 2016 ABSTRACT Approximately half of Sun-like stars harbor exoplanets packed within a radius of ∼0.3 au, but the formation of these planets and why they form in only half of known systems are still not well understood. We employ a one-dimensional steady-state model to gain physical insight into the origin of these close-in exoplanets.
Jacob B. Simon
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Collisional formation of massive exomoons of superterrestrial exoplanets [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Exomoons orbiting terrestrial or superterrestrial exoplanets have not yet been discovered; their possible existence and properties are therefore still an unresolved question. Here, we explore the collisional formation of exomoons through giant planetary impacts. We make use of smooth particle hydrodynamical collision simulations
Uri Malamud +3 more
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C/O Ratios and the formation of wide separation exoplanets [PDF]
The Astrophysical Journal LettersAbstract The gas and solid-state C/O ratios provide context to potentially link the atmospheric composition of planets to that of the natal disk. We provide a synthesis of extant estimates of the gaseous C/O and C/H ratios in planet-forming disks obtained primarily through analysis of Atacama Large Millimeter/submillimeter Array ...
Edwin A. Bergin +3 more
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Characterization of exoplanets from their formation [PDF]
Astronomy & Astrophysics, 2017 44 pages, 26 figures (journal format). A&A in print.
C. Mordasini +2 more
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Characterization of exoplanets from their formation [PDF]
Astronomy and Astrophysics, 2012 A first characterization of many exoplanets has recently been achieved by the observational determination of their radius. For some planets, a measurement of the luminosity has also been possible, with many more directly imaged planets expected in the future.
C. Mordasini +3 more
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RESONANCES OF MULTIPLE EXOPLANETS AND IMPLICATIONS FOR THEIR FORMATION [PDF]
The Astrophysical Journal, 2014 5 pages, 5 figures, accepted for publication in ApJ ...
Xiaojia Zhang +3 more
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THE FORMATION OF URANUS AND NEPTUNE: CHALLENGES AND IMPLICATIONS FOR INTERMEDIATE-MASS EXOPLANETS [PDF]
The Astrophysical Journal, 2014 In this paper we investigate the formation of Uranus and Neptune, according to the core-nucleated accretion model, considering formation locations ranging from 12 to 30 AU from the Sun, and with various disk solid-surface densities and core accretion rates.
Ravit Helled, Peter Bodenheimer
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Haze Formation in Warm H2-rich Exoplanet Atmospheres [PDF]
The Planetary Science Journal, 2020 Abstract 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 features.
Chao He +10 more
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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.
Nola Redd
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