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 language | English (US) |
|---|---|
| Title of host publication | From Interacting Binaries to Exoplanets |
| Subtitle of host publication | Essential Modeling Tools |
| Pages | 533-538 |
| Number of pages | 6 |
| Edition | S282 |
| DOIs | |
| State | Published - Jul 1 2011 |
Publication series
| Name | Proceedings of the International Astronomical Union |
|---|---|
| Number | S282 |
| Volume | 7 |
| ISSN (Print) | 1743-9213 |
| ISSN (Electronic) | 1743-9221 |
Fingerprint
Keywords
- eclipses
- hydrodynamics
- radiative transfer
- techniques: spectroscopic
ASJC Scopus subject areas
- Astronomy and Astrophysics
Cite this
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 proceeding › Conference contribution
}
TY - GEN
T1 - 3D models of exoplanet atmospheres
AU - Dobbs-Dixon, Ian
PY - 2011/7/1
Y1 - 2011/7/1
N2 - 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.
AB - 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.
KW - eclipses
KW - hydrodynamics
KW - radiative transfer
KW - techniques: spectroscopic
UR - http://www.scopus.com/inward/record.url?scp=84887329506&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887329506&partnerID=8YFLogxK
U2 - 10.1017/S1743921311028328
DO - 10.1017/S1743921311028328
M3 - Conference contribution
AN - SCOPUS:84887329506
SN - 9781107019829
T3 - Proceedings of the International Astronomical Union
SP - 533
EP - 538
BT - From Interacting Binaries to Exoplanets
ER -