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We have obtained long-slit, infrared spectra of Jupiter with the Anglo Australian Telescope in the K and H bands at a resolving power of 2260. Using a line-by-line, radiative transfer model with the latest, improved spectral line data for…

Solar and Stellar Astrophysics · Physics 2015-05-27 Lucyna Kedziora-Chudczer , Jeremy Bailey

We have developed an open-source pipeline for the analysis of \textit{Spitzer}/IRAC channel 1 and 2 time-series photometry, incorporating some of the most popular decorrelation methods. We applied this pipeline to new phase curve…

We present updated atmospheric tables suitable for calculating the post-formation evolution and cooling of Jupiter and Jupiter-like exoplanets. These tables are generated using a 1D radiative transfer modeling code that incorporates the…

Earth and Planetary Astrophysics · Physics 2023-09-06 Yi-Xian Chen , Adam Burrows , Ankan Sur , Roberto Tejada Arevalo

We use a grid-based shallow water model to simulate the atmospheric dynamics of the transiting hot Jupiter HD 209458b. Under the usual assumption that the planet is in synchronous rotation with zero obliquity, a steady state is reached with…

Astrophysics · Physics 2010-11-11 Jonathan Langton , Gregory Laughlin

Over a large range of equilibrium temperatures, clouds shape the transmission spectrum of hot Jupiter atmospheres, yet their composition remains unknown. Recent observations show that the Kepler lightcurves of some hot Jupiters are…

Earth and Planetary Astrophysics · Physics 2016-08-31 Vivien Parmentier , Jonathan J. Fortney , Adam P. Showman , Caroline V. Morley , Mark S. Marley

Currently, the analysis of transmission spectra is the most successful technique to probe the chemical composition of exoplanet atmospheres. But the accuracy of these measurements is constrained by observational limitations and the…

Earth and Planetary Astrophysics · Physics 2015-06-23 P. Montañes-Rodriguez , B Gonzalez-Merino , E. Palle , M. Lopez-Puertas , E. Garcia-Melendo

We present the results of recent observations of phase-dependent variations in brightness designed to characterize the atmospheres of hot Jupiters. In particular, we focus on recent observations of the transiting planet HD 189733b at 8…

Astrophysics · Physics 2007-10-17 H. A. Knutson

Although exoplanetary science was not initially projected to be a substantial part of the Spitzer mission, its exoplanet observations set the stage for current and future surveys with JWST and Ariel. We present a comprehensive reduction and…

Ultra-hot Jupiters exhibit day-to-night temperature contrasts upwards of 1000 K due to competing effects of strong winds, short radiative timescales, magnetic drag, and H2 dissociation/recombination. Spectroscopic phase curves provide…

Turbulence is ubiquitous in Solar System planetary atmospheres. In hot Jupiter atmospheres, the combination of moderately slow rotation and thick pressure scale height may result in dynamical weather structures with unusually large,…

Astrophysics · Physics 2009-11-13 Emily Rauscher , Kristen Menou , James Y-K. Cho , Sara Seager , Brad Hansen

We present two-dimensional near-infrared temperature maps of the canonical hot Jupiter WASP-43b using a phase-curve observation with JWST NIRSpec/G395H. From the white-light planetary transit, we improve constraints on the planet's orbital…

We present results from an atmospheric circulation study of nine hot Jupiters that comprise a large transmission spectral survey using the Hubble and Spitzer Space Telescopes. These observations exhibit a range of spectral behavior over…

Earth and Planetary Astrophysics · Physics 2016-04-20 Tiffany Kataria , David K. Sing , Nikole K. Lewis , Channon Visscher , Adam P. Showman , Jonathan J. Fortney , Mark S. Marley

The Kuiper belt objects, the Centaurs, and the Jupiter-family comets form an evolutionary continuum of small outer Solar System objects, and their study allows us to gain insight into the history and evolution of the Solar System. Broadband…

We explore the infrared spectrum of a three-dimensional dynamical model of planet HD209458b as a function of orbital phase. The dynamical model predicts day-side atmospheric pressure-temperature profiles that are much more isothermal at…

Astrophysics · Physics 2011-02-11 J. J. Fortney , C. S. Cooper , A. P. Showman , M. S. Marley , R. S. Freedman

The low-resolution transmission spectra of ultra-hot Jupiters observed shortward of 0.5 microns indicate strong absorption at short-wavelengths. Previous explanations have included scattering, photochemistry, escaping metals, and…

Earth and Planetary Astrophysics · Physics 2020-07-29 Joshua D. Lothringer , Guangwei Fu , David K. Sing , Travis S. Barman

Global maps of Jupiter's atmospheric temperatures, gaseous composition and aerosol opacity are derived from a programme of 5-20 $\mu$m mid-infrared spectroscopic observations using the Texas Echelon Cross Echelle Spectrograph (TEXES) on…

Earth and Planetary Astrophysics · Physics 2017-06-14 L. N. Fletcher , T. K. Greathouse , G. S. Orton , J. A. Sinclair , R. S. Giles , P. G. J. Irwin , T. Encrenaz

Planets and moons in our Solar System have strongly peaked reflected light phase curves at opposition. In this work, we produce a modified reflected light phase curve model and use it to fit the Cassini phase curves of Jupiter and…

Earth and Planetary Astrophysics · Physics 2025-02-21 K. Jones , B. M. Morris , K. Heng

Thousands of transiting exoplanets have been discovered, but spectral analysis of their atmospheres has so far been dominated by a small number of exoplanets and data spanning relatively narrow wavelength ranges (such as 1.1 to 1.7 {\mu}m).…

We discuss atmosphere models of HD209458b in light of the recent day-side flux measurement of HD209458b's secondary eclipse by Spitzer-MIPS at 24 microns. In addition, we present a revised secondary eclipse IRTF upper limit at 2.2 microns…

Astrophysics · Physics 2009-11-11 S. Seager , L. J. Richardson , B. M. S. Hansen , K. Menou , J. Y-K. Cho , D. Deming

Of the over 800 exoplanets detected to date, over half are on non-circular orbits, with eccentricities as high as 0.93. Such orbits lead to time-variable stellar heating, which has implications for the planet's atmospheric dynamical regime.…

Earth and Planetary Astrophysics · Physics 2015-06-11 Tiffany Kataria , Adam P. Showman , Nikole K. Lewis , Jonathan J. Fortney , Mark S. Marley , Richard S. Freedman