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224 papers · 1 filter
Hints of a sulfur-rich atmosphere around the 1.6 R Super-Earth L98-59 d from JWST NIRSpec G395H transmission spectroscopy
Amélie Gressier, Néstor Espinoza, Natalie H. Allen +11
Detecting atmospheres around planets with a radius below 1.6 R, commonly referred to as rocky planets (Rogers_2015, Rogers_2021), has proven to be challenging. However,…
A Benchmark JWST Near-Infrared Spectrum for the Exoplanet WASP-39b
A. L. Carter, E. M. May, N. Espinoza +77
Observing exoplanets through transmission spectroscopy supplies detailed information on their atmospheric composition, physics, and chemistry. Prior to JWST, these observations wer…
Sulphur dioxide in the mid-infrared transmission spectrum of WASP-39b
Diana Powell, Adina D. Feinstein, Elspeth K. H. Lee +70
The recent inference of sulphur dioxide (SO) in the atmosphere of the hot (1100 K), Saturn-mass exoplanet WASP-39b from near-infrared JWST observations suggests that phot…
The deep oxygen abundance in Solar System Giant Planets, with a new derivation for Saturn
Thibault Cavalié, Jonathan Lunine, Olivier Mousis +1
Deep elemental composition is a challenging measurement to achieve in the giant planets of the solar system. Yet, knowledge of the deep composition offers important insights in the…
A Contact Binary Satellite of the Asteroid (152830) Dinkinesh
Harold F. Levison, Simone Marchi, Keith S. Noll +3
Asteroids with diameters less than about 5 km have complex histories because they are small enough for radiative torques, YORP, to be a notable factor in their evolution. (152830)…
Multiple Clues for Dayside Aerosols and Temperature Gradients in WASP-69 b from a Panchromatic JWST Emission Spectrum
Everett Schlawin, Sagnick Mukherjee, Kazumasa Ohno +16
WASP-69 b is a hot, inflated, Saturn-mass planet 0.26 Mjup with a zero-albedo equilibrium temperature of 963 K. Here, we report the JWST 2 to 12 um emission spectrum of the planet…