English
Related papers

Related papers: Patchy nightside clouds on ultra-hot Jupiters: Gen…

200 papers

Recent observations of ultra-hot Jupiters with dayside temperatures in excess of $2500~\mathrm{K}$ have found evidence for new physical processes at play in their atmospheres. In this work, we investigate the effects of the dissociation of…

Earth and Planetary Astrophysics · Physics 2020-01-08 Xianyu Tan , Thaddeus D. Komacek

Using a general circulation model (GCM), we investigate trends in simulated hot Jupiter atmospheres for a range of irradiation temperatures (1,500 - 4,000 K), surface gravities (10 and 40 m s-2), and cloud conditions. Our models include…

Earth and Planetary Astrophysics · Physics 2021-02-24 Michael T. Roman , Eliza M. -R. Kempton , Emily Rauscher , Caleb K. Harada , Jacob L. Bean , Kevin B. Stevenson

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

Using a general circulation model with newly implemented cloud modeling, we investigate how radiative feedback can self-consistently shape condensate cloud distributions, temperatures, and fluxes in a hot Jupiter atmosphere. We apply a…

Earth and Planetary Astrophysics · Physics 2019-02-13 Michael Roman , Emily Rauscher

Secondary eclipse observations of ultra-hot Jupiters have found evidence that hydrogen is dissociated on their daysides. Additionally, full-phase light curve observations of ultra-hot Jupiters show a smaller day-night emitted flux contrast…

Earth and Planetary Astrophysics · Physics 2018-05-22 Thaddeus D. Komacek , Xianyu Tan

Many hot and ultra-hot Jupiters have inflated radii, implying that their interiors retain significant entropy from formation. These hot interiors lead to an enhanced internal heat flux that impinges upon the atmosphere from below. In this…

Earth and Planetary Astrophysics · Physics 2022-12-29 Thaddeus D. Komacek , Peter Gao , Daniel P. Thorngren , Erin M. May , Xianyu Tan

With the new generation of space telescopes such as the James Webb Space Telescope (JWST), it is possible to better characterize the atmospheres of exoplanets. The atmospheres of Hot and Ultra Hot Jupiters are highly heterogeneous and…

Earth and Planetary Astrophysics · Physics 2024-05-22 Aurélien Falco , Jérémy Leconte , Alexandre Mechineau , William Pluriel

We have developed a pseudo two-dimensional model of a planetary atmosphere, which takes into account thermochemical kinetics, photochemistry, vertical mixing, and horizontal transport, the latter being modeled as a uniform zonal wind. We…

Earth and Planetary Astrophysics · Physics 2014-05-08 Marcelino Agundez , Vivien Parmentier , Olivia Venot , Franck Hersant , Franck Selsis

Observations of scattered light and thermal emission from hot Jupiter exoplanets have suggested the presence of inhomogeneous aerosols in their atmospheres. 3D general circulation models (GCMs) that attempt to model the effects of aerosols…

Earth and Planetary Astrophysics · Physics 2021-03-19 Caleb K. Harada , Eliza M. -R. Kempton , Emily Rauscher , Michael Roman , Isaac Malsky , Marah Brinjikji , Victoria diTomasso

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

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

Short-period gas giants (hot Jupiters) on circular orbits are expected to be tidally locked into synchronous rotation, with permanent daysides that face their host stars, and permanent nightsides that face the darkness of space. Thermal…

Earth and Planetary Astrophysics · Physics 2020-03-31 Dylan Keating , Nicolas B. Cowan , Lisa Dang

Ultra-hot Jupiters, an extreme class of planets not found in our solar system, provide a unique window into atmospheric processes. The extreme temperature contrasts between their day- and night-sides pose a fundamental climate puzzle: how…

The day and nightside temperatures of hot Jupiters are diagnostic of heat transport processes in their atmospheres. Recent observations have shown that the nightsides of hot Jupiters are a nearly constant 1100 K for a wide range of…

Earth and Planetary Astrophysics · Physics 2021-09-08 Peter Gao , Diana Powell

The vertical mixing in hot Jupiter atmospheres plays a critical role in the formation and spacial distribution of cloud particles in their atmospheres. This affects the observed spectra of a planet through cloud opacity, which can be…

Earth and Planetary Astrophysics · Physics 2024-11-13 Pascal A. Noti , Elspeth K. H. Lee

Photochemical hazes are expected to form in hot Jupiter atmospheres and may explain the strong scattering slopes and muted spectral features observed in the transmission spectra of many hot Jupiters. Absorption and scattering by…

Earth and Planetary Astrophysics · Physics 2023-08-02 Maria E. Steinrueck , Tommi Koskinen , Panayotis Lavvas , Vivien Parmentier , Sebastian Zieba , Xianyu Tan , Xi Zhang , Laura Kreidberg

Over the past two decades, a coherent picture has emerged of the atmospheric dynamics of hot Jupiters from a combination of three-dimensional general circulation models (GCMs) and astronomical observations. This paradigm consists of hot…

Earth and Planetary Astrophysics · Physics 2025-02-27 Thaddeus D. Komacek

We present a new two-dimensional, bin-scheme microphysical model of cloud formation in the atmospheres of hot Jupiters that includes the effects of longitudinal gas and cloud transport. We predict cloud particle size distributions as a…

Earth and Planetary Astrophysics · Physics 2024-04-16 Diana Powell , Xi Zhang

A new class of exoplanets is beginning to emerge: planets whose dayside atmospheres more closely resemble stellar atmospheres as most of their molecular constituents dissociate. The effects of the dissociation of these species will be…

Earth and Planetary Astrophysics · Physics 2018-05-02 Taylor J. Bell , Nicolas B. Cowan

Motivated by the observational evidence of inhomogeneous clouds in exoplanetary atmospheres, we investigate how proposed simple cloud distributions can affect atmospheric circulations and infrared emission. We simulated temperatures and…

Earth and Planetary Astrophysics · Physics 2017-11-29 Michael Roman , Emily Rauscher
‹ Prev 1 2 3 10 Next ›