3D models of exoplanet atmospheres

Ian Dobbs-Dixon

    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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