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The Mantis Network II: examining the 3D high-resolution observable properties of the UHJs WASP-121b and WASP-189b through GCM modelling

Lee, Elspeth K. H. ; Prinoth, Bibiana LU orcid ; Kitzmann, Daniel ; Tsai, Shang-Min ; Hoeijmakers, Jens LU ; Borsato, Nicholas W. LU orcid and Heng, Kevin (2022) In Monthly Notices of the Royal Astronomical Society 517(1). p.240-256
Abstract
The atmospheres of ultra hot Jupiters (UHJs) are prime targets for the detection of molecules and atoms at both low and high spectral resolution. We study the atmospheres of the UHJs WASP-121b and WASP-189b by performing 3D general circulation models (GCMs) of these planets using high temperature correlated-k opacity schemes with ultra-violet (UV) absorbing species included. The GCM results are then post-processed at low and high spectral resolutions and compared to available data. The high resolution results are cross-correlated with molecular and atomic templates to produce mock molecular detections. Our GCM models produce similar temperature-pressure (T-p) structure trends to previous 1D radiative-convective equilibrium models of UHJs.... (More)
The atmospheres of ultra hot Jupiters (UHJs) are prime targets for the detection of molecules and atoms at both low and high spectral resolution. We study the atmospheres of the UHJs WASP-121b and WASP-189b by performing 3D general circulation models (GCMs) of these planets using high temperature correlated-k opacity schemes with ultra-violet (UV) absorbing species included. The GCM results are then post-processed at low and high spectral resolutions and compared to available data. The high resolution results are cross-correlated with molecular and atomic templates to produce mock molecular detections. Our GCM models produce similar temperature-pressure (T-p) structure trends to previous 1D radiative-convective equilibrium models of UHJs. Furthermore, the inclusion of UV opacities greatly shapes the thermal and dynamical properties of the high-altitude, low-pressure regions of the UHJ atmospheres, with sharp T-p inversions due to the absorption of UV light. This suggests that optical wavelength, high-resolution observations probe a dynamically distinct upper atmospheric region, rather than the deeper jet forming layers. (Less)
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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Radiative transfer, Planets and satellites: atmospheres, Planets and satellites: individual: WASP-121b, Planets and satellites: individual: WASP-189b
in
Monthly Notices of the Royal Astronomical Society
volume
517
issue
1
pages
17 pages
publisher
Oxford University Press
external identifiers
  • scopus:85149723127
ISSN
1365-2966
DOI
10.1093/mnras/stac2246
language
English
LU publication?
yes
id
3de926cf-5822-40dd-bce4-f8aa058f4ad0
date added to LUP
2022-11-10 15:46:41
date last changed
2024-04-19 19:57:38
@article{3de926cf-5822-40dd-bce4-f8aa058f4ad0,
  abstract     = {{The atmospheres of ultra hot Jupiters (UHJs) are prime targets for the detection of molecules and atoms at both low and high spectral resolution. We study the atmospheres of the UHJs WASP-121b and WASP-189b by performing 3D general circulation models (GCMs) of these planets using high temperature correlated-k opacity schemes with ultra-violet (UV) absorbing species included. The GCM results are then post-processed at low and high spectral resolutions and compared to available data. The high resolution results are cross-correlated with molecular and atomic templates to produce mock molecular detections. Our GCM models produce similar temperature-pressure (T-p) structure trends to previous 1D radiative-convective equilibrium models of UHJs. Furthermore, the inclusion of UV opacities greatly shapes the thermal and dynamical properties of the high-altitude, low-pressure regions of the UHJ atmospheres, with sharp T-p inversions due to the absorption of UV light. This suggests that optical wavelength, high-resolution observations probe a dynamically distinct upper atmospheric region, rather than the deeper jet forming layers.}},
  author       = {{Lee, Elspeth K. H. and Prinoth, Bibiana and Kitzmann, Daniel and Tsai, Shang-Min and Hoeijmakers, Jens and Borsato, Nicholas W. and Heng, Kevin}},
  issn         = {{1365-2966}},
  keywords     = {{Radiative transfer; Planets and satellites: atmospheres; Planets and satellites: individual: WASP-121b; Planets and satellites: individual: WASP-189b}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{240--256}},
  publisher    = {{Oxford University Press}},
  series       = {{Monthly Notices of the Royal Astronomical Society}},
  title        = {{The Mantis Network II: examining the 3D high-resolution observable properties of the UHJs WASP-121b and WASP-189b through GCM modelling}},
  url          = {{http://dx.doi.org/10.1093/mnras/stac2246}},
  doi          = {{10.1093/mnras/stac2246}},
  volume       = {{517}},
  year         = {{2022}},
}