No evidence for radius inflation in hot Jupiters from vertical advection of heat
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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No evidence for radius inflation in hot Jupiters from vertical advection of heat. / Schneider, Aaron David; Carone, Ludmila; Decin, Leen; Jorgensen, Uffe Grae; Helling, Christiane.
I: Astronomy & Astrophysics, Bind 666, A11, 13.10.2022.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - No evidence for radius inflation in hot Jupiters from vertical advection of heat
AU - Schneider, Aaron David
AU - Carone, Ludmila
AU - Decin, Leen
AU - Jorgensen, Uffe Grae
AU - Helling, Christiane
PY - 2022/10/13
Y1 - 2022/10/13
N2 - Elucidating the radiative-dynamical coupling between the upper photosphere and deeper atmosphere may be key to our understanding of the abnormally large radii of hot Jupiters. Very long integration times of 3D general circulation models (GCMs) with self-consistent radiative transfer are needed to obtain a more comprehensive picture of the feedback processes between dynamics and radiation. Here, we present the longest 3D nongray GCM study to date (86000 d) of an ultra-hot Jupiter (WASP-76 b) that has reached a final converged state. Furthermore, we present a method that can be used to accelerate the path toward temperature convergence in the deep atmospheric layers. We find that the final converged temperature profile is cold in the deep atmospheric layers, lacking any sign of vertical transport of potential temperature by large-scale atmospheric motions. We therefore conclude that coupling between radiation and dynamics alone is not sufficient to explain the abnormally large radii of inflated hot gas giants.
AB - Elucidating the radiative-dynamical coupling between the upper photosphere and deeper atmosphere may be key to our understanding of the abnormally large radii of hot Jupiters. Very long integration times of 3D general circulation models (GCMs) with self-consistent radiative transfer are needed to obtain a more comprehensive picture of the feedback processes between dynamics and radiation. Here, we present the longest 3D nongray GCM study to date (86000 d) of an ultra-hot Jupiter (WASP-76 b) that has reached a final converged state. Furthermore, we present a method that can be used to accelerate the path toward temperature convergence in the deep atmospheric layers. We find that the final converged temperature profile is cold in the deep atmospheric layers, lacking any sign of vertical transport of potential temperature by large-scale atmospheric motions. We therefore conclude that coupling between radiation and dynamics alone is not sufficient to explain the abnormally large radii of inflated hot gas giants.
KW - radiation
KW - dynamics
KW - radiative transfer
KW - scattering
KW - planets and satellites
KW - atmospheres
KW - gaseous planets
KW - COLLISION-INDUCED ABSORPTION
KW - GENERAL-CIRCULATION MODEL
KW - MOLECULAR LINE LISTS
KW - INDUCED INFRARED-SPECTRA
KW - H-2-HE PAIRS
KW - ATMOSPHERIC CIRCULATION
KW - TEMPERATURES
KW - SIMULATIONS
KW - SCATTERING
KW - 18-K
U2 - 10.1051/0004-6361/202244797
DO - 10.1051/0004-6361/202244797
M3 - Journal article
VL - 666
JO - Astronomy & Astrophysics
JF - Astronomy & Astrophysics
SN - 0004-6361
M1 - A11
ER -
ID: 325019896