Results 111 to 120 of about 1,322 (222)

The Transiting Exoplanet Community Early Release Science Program [PDF]

open access: yes, 2017
JWST presents the opportunity to transform our understanding of planets and the origins of life by revealing the atmospheric compositions, structures, and dynamics of transiting exoplanets in unprecedented detail. However, the high-precision, time-series
Decin, L.   +60 more
core  

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

open access: yesThe 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   +5 more
doaj   +1 more source

Prioritizing High-Precision Photometric Monitoring of Exoplanet and Brown Dwarf Companions with JWST -- Strategic Exoplanet Initiatives with HST and JWST White Paper [PDF]

open access: yes
We advocate for the prioritization of high-precision photometric monitoring of exoplanet and brown dwarf companions to detect brightness variability arising from features in their atmospheres.
Chen, Xueqing   +17 more
core   +1 more source

Records of migration in the exoplanet configurations [PDF]

open access: yes, 2013
When compared to our Solar System, many exoplanet systems exhibit quite unusual planet configurations; some of these are hot Jupiters, which orbit their central stars with periods of a few days, others are resonant systems composed of two or more planets
Michtchenko, Tatiana Alexandrovna   +2 more
core  

An Eccentric Sub-Neptune Moving Into the Evaporation Desert

open access: yesThe Astrophysical Journal Letters
Though missions such as Kepler, K2, and TESS have discovered >2000 sub-Neptune and Neptunian planets, there is a dearth of such planets at close-in ( P ≲ 3 days) orbits. This feature, called the Neptune desert or the evaporation desert, is believed to be
Sydney A. Jenkins   +33 more
doaj   +1 more source

Modeling Clouds in Brown Dwarf and Exoplanet Giant Planet Atmospheres [PDF]

open access: yes, 2018
Clouds and hazes are commonplace in the atmospheres of solar system planets and are likely ubiquitous in the atmospheres of extrasolar planets as well. Clouds affect every aspect of a planetary atmosphere, from the transport of radiation, to atmospheric ...
Marley, Mark S.
core   +1 more source

Toward High-precision Mass Measurements of Two Sub-Neptunes in the K2-266 Planetary System Through Transit Timing

open access: yesThe Astronomical Journal
Sub-Neptunes have been found to be one of the most common types of exoplanets, yet their physical parameters and properties are poorly determined and in need of further investigation.
Ing-Guey Jiang   +5 more
doaj   +1 more source

Dynamics of exoplanets and exosatellites in binaries

open access: yes, 2019
This dissertation is the result of the work made under the supervision of J.A. Docobo, Full Professor in Astronomy and Director of the Ramon María Aller Astronomical Observatory of the University of Santiago de Compostela. The core of the dissertation is a compendium of articles published in peer review publications indexed in the Journal Citation ...
openaire   +1 more source

Infrared Observations of Exoplanet Atmospheres [PDF]

open access: yes, 2012
The study of extrasolar planet atmospheres elucidates the formation and migration history of planets and places the origin and evolution of Earth and the Solar System in a broader context.
Crossfield, Ian James Mills
core  

Architecture Classification for Extrasolar Planetary Systems

open access: yesThe Astronomical Journal
This paper presents a classification framework for the architectures of planetary systems based on a complete survey of the confirmed exoplanet population. With nearly 6000 confirmed exoplanets discovered, including more than 300 multiplanet systems with
Alex R. Howe   +3 more
doaj   +1 more source

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