3D models of exoplanet atmospheres

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dynamical models of strongly irradiated gas-giant atmospheres exhibit a range of behavior, the nature of which depends on both the adopted parameters and the adopted numerical model. Discerning the correct choice of physical parameters and modeling philosophy can be difficult. Here, I present a series of wavelength-dependent transmission spectra for the giant planet HD209458b based on 3D radiative hydrodynamical models for a range of kinematic viscosities. While flow patterns and temperature distributions can vary significantly, disk-averaged phase curves mask much of this information. Transmission spectra, on the other hand, probe the day-night transition where advective contributions dominate and differences are often most pronounced. Transmission spectra illustrate noticeable changes, especially when comparing the differences between transmission spectra of eastern and western hemispheres, as might be seen during ingress and egress.

Original languageEnglish (US)
Title of host publicationFrom Interacting Binaries to Exoplanets
Subtitle of host publicationEssential Modeling Tools
Pages533-538
Number of pages6
EditionS282
DOIs
StatePublished - Jul 1 2011

Publication series

NameProceedings of the International Astronomical Union
NumberS282
Volume7
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221

Fingerprint

extrasolar planets
atmospheres
Eastern Hemisphere
Western hemisphere
egress
distribution (property)
night
planets
flow distribution
temperature distribution
masks
kinematics
viscosity
probes
curves
gases
wavelengths

Keywords

  • eclipses
  • hydrodynamics
  • radiative transfer
  • techniques: spectroscopic

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

Dobbs-Dixon, I. (2011). 3D models of exoplanet atmospheres. In From Interacting Binaries to Exoplanets: Essential Modeling Tools (S282 ed., pp. 533-538). (Proceedings of the International Astronomical Union; Vol. 7, No. S282). https://doi.org/10.1017/S1743921311028328

3D models of exoplanet atmospheres. / Dobbs-Dixon, Ian.

From Interacting Binaries to Exoplanets: Essential Modeling Tools. S282. ed. 2011. p. 533-538 (Proceedings of the International Astronomical Union; Vol. 7, No. S282).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dobbs-Dixon, I 2011, 3D models of exoplanet atmospheres. in From Interacting Binaries to Exoplanets: Essential Modeling Tools. S282 edn, Proceedings of the International Astronomical Union, no. S282, vol. 7, pp. 533-538. https://doi.org/10.1017/S1743921311028328
Dobbs-Dixon I. 3D models of exoplanet atmospheres. In From Interacting Binaries to Exoplanets: Essential Modeling Tools. S282 ed. 2011. p. 533-538. (Proceedings of the International Astronomical Union; S282). https://doi.org/10.1017/S1743921311028328
Dobbs-Dixon, Ian. / 3D models of exoplanet atmospheres. From Interacting Binaries to Exoplanets: Essential Modeling Tools. S282. ed. 2011. pp. 533-538 (Proceedings of the International Astronomical Union; S282).
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