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Keys of a Mission to Uranus or Neptune, the Closest Ice Giants
Tristan Guillot, Jonathan Fortney, Emily Rauscher +26
Uranus and Neptune are the archetypes of "ice giants", a class of planets that may be among the most common in the Galaxy. They hold the keys to understand the atmospheric dynamics…
Evidence of a Clear Atmosphere for WASP-62b: the Only Known Transiting Gas Giant in the JWST Continuous Viewing Zone
Munazza K. Alam, Mercedes Lopez-Morales, Ryan J. MacDonald +12
Exoplanets with cloud-free, haze-free atmospheres at the pressures probed by transmission spectroscopy represent a valuable opportunity for detailed atmospheric characterization an…
Into the UV: The Atmosphere of the Hot Jupiter HAT-P-41b Revealed
Nikole K. Lewis, Hannah R. Wakeford, Ryan J. MacDonald +19
For solar-system objects, ultraviolet spectroscopy has been critical in identifying sources for stratospheric heating and measuring the abundances of a variety of hydrocarbon and s…
A Featureless Infrared Transmission Spectrum for the Super-Puff Planet Kepler-79d
Yayaati Chachan, Daniel Jontof-Hutter, Heather A. Knutson +12
Extremely low density planets ('super-puffs') are a small but intriguing subset of the transiting planet population. With masses in the super-Earth range ( M) and…
A Library of Self-Consistent Simulated Exoplanet Atmospheres
Jayesh M. Goyal, Nathan Mayne, Benjamin Drummond +7
We present a publicly available library of model atmospheres with radiative-convective equilibrium Pressure-Temperature (-) profiles fully consistent with equilibrium chemica…
ExoTiC-ISM: A Python package for marginalised exoplanet transit parameters across a grid of systematic instrument models
Iva Laginja, Hannah R. Wakeford
To address the the problem of calibration of instrument systematics in transit light curves, we present the Python package ExoTiC-ISM. Transit spectroscopy can reveal many differen…
The Exoplanet Perspective on Future Ice Giant Exploration
H. R. Wakeford, P. A. Dalba
Exoplanets number in their thousands, and the number is ever increasing with the advent of new surveys and improved instrumentation. One of the most surprising things we have learn…
Aerosol Composition of Hot Giant Exoplanets Dominated by Silicates and Hydrocarbon Hazes
Peter Gao, Daniel P. Thorngren, Elspeth K. H. Lee +6
Aerosols are common in the atmospheres of exoplanets across a wide swath of temperatures, masses, and ages. These aerosols strongly impact observations of transmitted, reflected, a…
The HST PanCET Program: An Optical to Infrared Transmission Spectrum of HAT-P-32Ab
Munazza K. Alam, Mercedes Lopez-Morales, Nikolay Nikolov +14
We present a 0.3-5 micron transmission spectrum of the hot Jupiter HAT-P-32Ab observed with the Space Telescope Imaging Spectrograph (STIS) and Wide Field Camera 3 (WFC3) instrumen…
Confirmation of water emission in the dayside spectrum of the ultrahot Jupiter WASP-121b
Thomas Mikal-Evans, David K. Sing, Tiffany Kataria +5
We present four new secondary eclipse observations for the ultrahot Jupiter WASP-121b acquired using the Hubble Space Telescope Wide Field Camera 3. The eclipse depth is measured t…
The Hubble PanCET program: Transit and Eclipse Spectroscopy of the Strongly Irradiated Giant Exoplanet WASP-76b
Guangwei Fu, Drake Deming, Joshua Lothringer +21
Ultra-hot Jupiters with equilibrium temperature greater than 2000K are uniquely interesting targets as they provide us crucial insights into how atmospheres behave under extreme co…
Optical to near-infrared transmission spectrum of the warm sub-Saturn HAT-P-12b
Ian Wong, Björn Benneke, Peter Gao +12
We present the transmission spectrum of HAT-P-12b through a joint analysis of data obtained from the Hubble Space Telescope Space Telescope Imaging Spectrograph (STIS) and Wide Fie…
Into the UV: A precise transmission spectrum of HAT-P-41b using Hubble's WFC3/UVIS G280 grism
H. R. Wakeford, D. K. Sing, K. B. Stevenson +8
The ultraviolet-visible wavelength range holds critical spectral diagnostics for the chemistry and physics at work in planetary atmospheres. To date, exoplanet time-series atmosphe…