TY - JOUR
T1 - GCM-motivated Multidimensional Temperature Parametrization Scheme for Phase-curve Retrieval
AU - Dobbs-Dixon, Ian
AU - Blecic, Jasmina
N1 - Funding Information:
We thank the anonymous reviewer for insightful comments that improved the manuscript. I.D.D. and J.B. were partially supported by the NASA Exoplanets Research Program, grant No. NNX17AC03G. We thank Tristian Guillot for useful discussions. This work additionally benefited from the 2019 Exoplanet Summer Program in the Other Worlds Laboratory (OWL) at the University of California, Santa Cruz, a program funded by the Heising-Simons Foundation. Portions of research were carried out on the High Performance Computing resources at New York University Abu Dhabi.
Publisher Copyright:
© 2022. The Author(s). Published by the American Astronomical Society.
PY - 2022/4/1
Y1 - 2022/4/1
N2 - We present a novel physically motivated, parametrized temperature model for phase-curve retrieval, able to self-consistently assess the variation in thermal structure in multidimensions. To develop this approach, we drew motivation from both full three-dimensional general circulation models and analytic formulations, accounting for the dominant dynamical feature of tidally locked planets, the planetary jet. Our formulation shows notable flexibility. It can generate planetary jets of various characteristics and redistribution efficiencies seen in the literature, including both standard eastward and unusual westward offset hotspots, as well as more exotic configurations for potential future observations. In our modeling scheme we utilize a tractable set of parameters efficient enough to enable future Bayesian analysis and, in addition to the resolved temperature structure, we return physical insights not yet derived from retrievals: the amplitude and the phase offset, and the location and the extent of the equatorial jet.
AB - We present a novel physically motivated, parametrized temperature model for phase-curve retrieval, able to self-consistently assess the variation in thermal structure in multidimensions. To develop this approach, we drew motivation from both full three-dimensional general circulation models and analytic formulations, accounting for the dominant dynamical feature of tidally locked planets, the planetary jet. Our formulation shows notable flexibility. It can generate planetary jets of various characteristics and redistribution efficiencies seen in the literature, including both standard eastward and unusual westward offset hotspots, as well as more exotic configurations for potential future observations. In our modeling scheme we utilize a tractable set of parameters efficient enough to enable future Bayesian analysis and, in addition to the resolved temperature structure, we return physical insights not yet derived from retrievals: the amplitude and the phase offset, and the location and the extent of the equatorial jet.
UR - http://www.scopus.com/inward/record.url?scp=85129098281&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85129098281&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/ac5898
DO - 10.3847/1538-4357/ac5898
M3 - Article
AN - SCOPUS:85129098281
SN - 0004-637X
VL - 929
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 46
ER -