Results 11 to 20 of about 3,795,130 (207)

Exoplanet winds: Modelling atmospheric dynamics via resolved spectral lines

open access: yes, 2021
This thesis benchmarked a new probe of atmospheric dynamics in exoplanet atmospheres by resolving the spectral lines stemming from these far atmospheres and then modelling their line shape taking into account the broadening from atmospheric winds. This gives us a window into atmospheric winds for these far away worlds only limited by the depths of the ...
Seidel, Julia Victoria
openaire   +3 more sources

General circulation modelling of close-in extrasolar giant planets [PDF]

open access: yes, 2011
PhDA large fraction of the extrasolar planets detected so far are giant planets that have such short orbital periods (a few days) that they are thought to be tidally-synchronised with the host star. Such orbits lead to permanent day/night sides on the
Thrastarson, Heidar Thor
core   +4 more sources

Atmospheric circulation of tidally locked exoplanets: a suite of benchmark tests for dynamical solvers [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
The complexity of atmospheric modelling and its inherent non-linearity, together with the limited amount of data of exoplanets available, motivate model intercomparisons and benchmark tests. In the geophysical community, the Held-Suarez test is a standard benchmark for comparing dynamical core simulations of the Earth's atmosphere with different ...
Heng, Kevin   +2 more
openaire   +4 more sources

A catalogue of exoplanet atmospheric retrieval codes [PDF]

open access: yes, 2023
Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations.
MacDonald, Ryan J., Batalha, Natasha E.
core   +2 more sources

Atmospheric Dynamics of Hot Exoplanets [PDF]

open access: yesAnnual Review of Earth and Planetary Sciences, 2015
The characterization of exoplanetary atmospheres has come of age in the past decade, as astronomical techniques now allow for albedos, chemical abundances, temperature profiles and maps, rotation periods, and even wind speeds to be measured. Atmospheric dynamics sets the background state of density, temperature, and velocity that determines or ...
Heng, Kevin, Showman, Adam
openaire   +4 more sources

Effects of Bulk Composition on the Atmospheric Dynamics on Close-in Exoplanets [PDF]

open access: yesThe Astrophysical Journal, 2017
Abstract Super Earths and mini Neptunes likely have a wide range of atmospheric compositions, ranging from low molecular mass atmospheres of H2 to higher molecular atmospheres of water, CO2, N2, or other species. Here we systematically investigate the effects of atmospheric bulk compositions on temperature and wind distributions for ...
Zhang, Xi, Showman, Adam P.
openaire   +2 more sources

DIRECT MEASURE OF RADIATIVE AND DYNAMICAL PROPERTIES OF AN EXOPLANET ATMOSPHERE [PDF]

open access: yesThe Astrophysical Journal Letters, 2016
ABSTRACT Two decades after the discovery of 51 Peg b, the formation processes and atmospheres of short-period gas giants remain poorly understood. Observations of eccentric systems provide key insights on those topics as they can illuminate how a planet’s atmosphere responds to changes in incident flux.
Julien de Wit   +6 more
openaire   +5 more sources

ATMOSPHERIC DYNAMICS OF TERRESTRIAL EXOPLANETS OVER A WIDE RANGE OF ORBITAL AND ATMOSPHERIC PARAMETERS [PDF]

open access: yesThe Astrophysical Journal, 2015
The recent discoveries of terrestrial exoplanets and super-Earths extending over a broad range of orbital and physical parameters suggest that these planets will span a wide range of climatic regimes. Characterization of the atmospheres of warm super-Earths has already begun and will be extended to smaller and more distant planets over the coming ...
Kaspi, Yohai, Showman, Adam P.
openaire   +2 more sources

Atmospheres on Nonsynchronized Eccentric-tilted Exoplanets. I. Dynamical Regimes [PDF]

open access: yesThe Astrophysical Journal, 2019
Abstract Relatively long-period, nonsynchronized planets—such as warm Jupiters—potentially retain the primordial rotation, eccentricity, and obliquity that might encapsulate information on planetary climate and formation processes. To date, there has not been a systematic study on climate patterns on these planets that will significantly
Kazumasa Ohno, Xi Zhang
openaire   +2 more sources

The Influence of a Stellar Flare on the Dynamical State of the Atmosphere of the Exoplanet HD 209458b [PDF]

open access: yesAstronomy Reports, 2018
7 pages, 5 figures, accepted by Astronomy Reports (2018, v. 62, No. 10)
Bisikalo, D. V.   +4 more
openaire   +2 more sources

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