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Infrared lightcurves of transiting hot Jupiters present a trend in which the atmospheres of the hottest planets are less efficient at redistributing the stellar energy absorbed on their daysides---and thus have a larger day-night…

Earth and Planetary Astrophysics · Physics 2015-06-16 Daniel Perez-Becker , Adam P. Showman

`Hot jupiters,' giant planets with orbits very close to their parent stars, are thought to form farther away and migrate inward via interactions with a massive gas disk. If a giant planet forms and migrates quickly, the planetesimal…

Astrophysics · Physics 2014-10-13 Sean N. Raymond , Thomas Quinn , Jonathan I. Lunine

The majority of potentially habitable exoplanets detected orbit stars cooler than the Sun, and therefore are irradiated by a stellar spectrum peaking at longer wavelengths than that incident on Earth. Here, we present results from a set of…

The advent of high-resolution spectroscopy as a method for exoplanet atmospheric characterization has expanded our capability to study non-transiting planets, increasing the number of planets accessible for observation. Many of the most…

Earth and Planetary Astrophysics · Physics 2021-12-22 Isaac Malsky , Emily Rauscher , Eliza M. R. Kempton , Michael Roman , Deryl Long , Caleb K. Harada

Our purpose is to release a chemical network, and the associated rate coefficients, developed for the temperature and pressure range relevant to hot Jupiters atmospheres. Using this network, we study the vertical atmospheric composition of…

Earth and Planetary Astrophysics · Physics 2012-09-19 Olivia Venot , Eric Hébrard , Marcelino Agùndez , Michel Dobrijevic , Franck Selsis , Franck Hersant , Nicolas Iro , Roda Bounaceur

Jupiter's banded structure undergoes strong temporal variations, changing the visible and infrared appearance of the belts and zones in a complex and turbulent way due to physical processes that are not yet understood. In this study we use…

As an exoplanet orbits its host star it reflects and emits light, forming a distinctive phase curve. By observing this light, we can study the atmosphere and surface of distant planets. The planets in our Solar System show a wide range of…

Earth and Planetary Astrophysics · Physics 2016-12-14 David J. Armstrong , Ernst de Mooij , Joanna Barstow , Hugh P. Osborn , James Blake , Nessa Fereshteh Saniee

The interior flux of a giant planet impacts atmospheric motion, and the atmosphere dictates the interior's cooling. Here we use a non-hydrostatic general circulation model (Simulating Nonhydrostatic Atmospheres on Planets, SNAP) coupled…

Earth and Planetary Astrophysics · Physics 2023-12-27 Xi Zhang , Cheng Li , Huazhi Ge , Tianhao Le

The hot-Jupiter HAT-P-2b has become a prime target for Spitzer Space Telescope observations aimed at understanding the atmospheric response of exoplanets on highly eccentric orbits. Here we present a suite of three-dimensional atmospheric…

Earth and Planetary Astrophysics · Physics 2015-06-22 Nikole K. Lewis , Adam P. Showman , Jonathan J. Fortney , Heather A. Knutson , Mark S. Marley

We show that a consistent fit to observed secondary eclipse data for several strongly irradiated transiting planets demands a temperature inversion (stratosphere) at altitude. Such a thermal inversion significantly influences the…

Astrophysics · Physics 2009-11-13 Ivan Hubeny , Adam Burrows

The atmospheres of the four giant planets of our Solar System share a common and well-observed characteristic: they each display patterns of planetary banding, with regions of different temperatures, composition, aerosol properties and…

Earth and Planetary Astrophysics · Physics 2020-01-07 Leigh N. Fletcher , Yohai Kaspi , Tristan Guillot , Adam P. Showman

The discovery of high incidence of hot Jupiters in dense clusters challenges the field-based hot Jupiter formation theory. In dense clusters, interactions between planetary systems and flyby stars are relatively common. This has a…

Earth and Planetary Astrophysics · Physics 2021-01-06 Yi-Han Wang , Nathan W. C. Leigh , Rosalba Perna , Michael M. Shara

Jupiter's atmosphere features a variety of clouds that are formed from the interplay of chemistry and atmospheric dynamics, from the deep red color of the Great Red Spot to the high altitude white ammonia clouds present in the zones (bright…

Earth and Planetary Astrophysics · Physics 2022-03-08 Ramanakumar Sankar , Csaba Palotai

Hot Jupiters have been predicted to have a strong day/night temperature contrast and a hot spot shifted eastward of the substellar point. This was confirmed by numerous phase curve observations probing the longitudinal brightness variation…

Earth and Planetary Astrophysics · Physics 2020-11-18 Vivien Parmentier , Adam P. Showman , Jonathan J. Fortney

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 explain the emergence and robustness of intense jets in highly turbulent planetary atmospheres, like on Jupiter, by a general approach of statistical mechanics of potential vorticity patches. The idea is that potential vorticity mixing…

Fluid Dynamics · Physics 2007-05-23 F. Bouchet , J. Sommeria

Using a three-dimensional nonhydrostatic general circulation model, we investigate the response of the thermosphere-ionosphere system to the 5-6 August 2011 major geomagnetic storm. The model is driven by measured storm-time input data of…

Space Physics · Physics 2016-04-06 Erdal Yiğit , Harald U. Frey , Mark B. Moldwin , Thomas J. Immel , Aaron J. Ridley

The meteorology of hot Jupiters has been characterized primarily with thermal measurements, but recent observations suggest the possibility of directly detecting the winds by observing the Doppler shift of spectral lines seen during…

Earth and Planetary Astrophysics · Physics 2013-06-12 Adam P. Showman , Jonathan J. Fortney , Nikole K. Lewis , Megan Shabram

What makes the study of exoplanetary atmospheres so hard is the extraction of its tiny signal from observations, usually dominated by telluric absorption, stellar spectrum and instrumental noise. The High Resolution Spectroscopy has emerged…

Earth and Planetary Astrophysics · Physics 2022-09-14 M. C. Maimone , A. Chiavassa , J. Leconte

We provide a brief review of many aspects of the planetary physics of hot Jupiters. Our aim is to cover most of the major areas of current study while providing the reader with additional references for more detailed follow-up. We first…

Earth and Planetary Astrophysics · Physics 2021-03-17 Jonathan J. Fortney , Rebekah I. Dawson , Thaddeus D. Komacek
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