Results 91 to 100 of about 372,922 (156)

Planet Migration in Protoplanetary Disks with Rims

open access: yesThe Astrophysical Journal
Complex structures, including sharp edges, rings, and gaps, have been commonly observed in protoplanetary disks with or without planetary candidates. Here we consider the possibility that they are the intrinsic consequences of angular momentum transfer ...
Zhuoya Cao   +3 more
doaj   +1 more source

Introduction-First Billion Years: Habitability. [PDF]

open access: yesAstrobiology, 2021
Rivera-Valentín EG   +6 more
europepmc   +1 more source

Gas Giants Formed by Gravitational Instability May Accrete Atmospheres with Superstellar Carbon-to-oxygen Ratios

open access: yesThe Astrophysical Journal
Characterizing the atmospheric compositions of exoplanets, along with determining properties such as their mass, mean density, and orbital configuration, are thought to be an effective means for differentiating between various formation and evolution ...
Alan P. Boss
doaj   +1 more source

Confirmation of the Low-eccentricity Warm Jupiter HD 278555 b with NEID

open access: yesThe Astronomical Journal
The study of warm Jupiters is crucial to understanding the processes that govern giant-planet formation and migration. These planets sit at the boundary between cold giant planets and hot Jupiters, and studying their orbital properties, including period,
James Ball   +20 more
doaj   +1 more source

Identification of carbon dioxide in an exoplanet atmosphere. [PDF]

open access: yesNature, 2023
JWST Transiting Exoplanet Community Early Release Science Team.
europepmc   +1 more source

Detection of Four Cold Jupiters through Combined Analyses of Radial Velocity and Astrometry Data

open access: yesThe Astronomical Journal
Cold Jupiters play a crucial role in planet formation and dynamical evolution. Since their initial discovery around 47 UMa, they have attracted significant interest; however, their formation mechanisms remain uncertain, underscoring the need to expand ...
Yiyun Wu   +21 more
doaj   +1 more source

Semianalytical Accretion-tracer Emission: Forming Planets Are Intrinsically Faint

open access: yesThe Astrophysical Journal
Direct-imaging surveys have looked for accreting planets through their accretion tracers such as H α but have been less fruitful than expected.
Gabriel-Dominique Marleau
doaj   +1 more source

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