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Related papers: A first look at rocky exoplanets with JWST

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The spectroscopic characterization of terrestrial exoplanets will be made possible for the first time with JWST. One challenge to characterizing such planets is that it is not known a priori whether they possess optically thick atmospheres…

The critical first step in the search for life on exoplanets over the next decade is to determine whether rocky planets transiting small M-dwarf stars possess atmospheres and, if so, what processes sculpt them over time. Because of its…

The upcoming launch of the James Webb Space Telescope (JWST) means that we will soon have the capability to characterize the atmospheres of rocky exoplanets. However, it is still unknown whether such planets orbiting close to M dwarf stars…

Earth and Planetary Astrophysics · Physics 2020-01-08 Megan Mansfield , Edwin S. Kite , Renyu Hu , Daniel D. B. Koll , Matej Malik , Jacob L. Bean , Eliza. M. -R. Kempton

The field of exoplanet atmospheric characterization has recently made considerable advances with the advent of high-resolution spectroscopy from large ground-based telescopes and the commissioning of the James Webb Space Telescope (JWST).…

Earth and Planetary Astrophysics · Physics 2024-04-25 Eliza M. -R. Kempton , Heather A. Knutson

The prevalence of atmospheres on rocky planets is one of the major questions in exoplanet astronomy, but there are currently no published unambiguous detections of atmospheres on any rocky exoplanets. The MIRI instrument on JWST can measure…

We explore how well James Webb Space Telescope (JWST) spectra will likely constrain bulk atmospheric properties of transiting exoplanets. We start by modeling the atmospheres of archetypal hot Jupiter, warm Neptune, warm sub-Neptune, and…

Earth and Planetary Astrophysics · Physics 2016-01-27 Thomas P. Greene , Michael R. Line , Cezar Montero , Jonathan J. Fortney , Jacob Lustig-Yeager , Kyle Luther

The era of exoplanet characterization is upon us. For a subset of exoplanets -- the transiting planets -- physical properties can be measured, including mass, radius, and atmosphere characteristics. Indeed, measuring the atmospheres of a…

Astrophysics · Physics 2015-05-13 S. Seager , D. Deming , J. A. Valenti

The James Webb Space Telescope (JWST) will enable the search for and characterization of terrestrial exoplanet atmospheres in the habitable zone via transmission spectroscopy. However, relatively little work has been done to use solar…

Earth and Planetary Astrophysics · Physics 2023-08-30 Jacob Lustig-Yaeger , Victoria S. Meadows , David Crisp , Michael R. Line , Tyler D. Robinson

Most rocky planets in the galaxy orbit a cool host star, and there is large uncertainty among theoretical models whether these planets can retain an atmosphere. The James Webb Space Telescope (JWST) might be able to settle this question…

Earth and Planetary Astrophysics · Physics 2020-01-08 Daniel D. B. Koll , Matej Malik , Megan Mansfield , Eliza M. -R. Kempton , Edwin Kite , Dorian Abbot , Jacob L. Bean

The James Webb Space Telescope (JWST) will measure exoplanet transmission and eclipse spectroscopy at un-precedented precisions to better understand planet structure, dynamics, chemistry and formation. These are essential tools on the march…

Earth and Planetary Astrophysics · Physics 2018-07-18 Everett Schlawin , Thomas P. Greene , Michael Line , Jonathan J. Fortney , Marcia Rieke

Rocky planets are common around other stars, but their atmospheric properties remain largely unconstrained. Thanks to a wealth of recent planet discoveries and upcoming advances in observing capability, we are poised to characterize the…

Earth and Planetary Astrophysics · Physics 2022-07-26 R. Wordsworth , L. Kreidberg

Nearly 30 years after the discovery of the first exoplanet around a main sequence star, thousands of planets have now been confirmed. These discoveries have completely revolutionized our understanding of planetary systems, revealing types…

Earth and Planetary Astrophysics · Physics 2024-04-25 Bradford J. Foley

The James Webb Space Telescope (JWST) will offer the first opportunity to characterize terrestrial exoplanets with sufficient precision to identify high mean molecular weight atmospheres, and TRAPPIST-1's seven known transiting Earth-sized…

Earth and Planetary Astrophysics · Physics 2019-06-26 Jacob Lustig-Yaeger , Victoria S. Meadows , Andrew P. Lincowski

The James Webb Space Telescope (JWST) has provided the first opportunity to study the atmospheres of terrestrial exoplanets and estimate their surface conditions. Earth-sized planets around Sun-like stars are currently inaccessible with…

Transmission spectroscopy is still the preferred characterization technique for exoplanet atmospheres, although it presents unique challenges that translate into characterization bottlenecks when robust mitigation strategies are missing.…

Earth and Planetary Astrophysics · Physics 2024-07-24 Benjamin V. Rackham , Julien de Wit

Over the last decade, precise exoplanet transmission spectroscopy has revealed the atmospheres of dozens of exoplanets, driven largely by observatories like the Hubble Space Telescope. One major discovery has been the ubiquity of…

Emission spectroscopy is a promising technique to observe atmospheres of rocky exoplanets, probing both their chemistry and thermal profiles. We present HyDRo, an atmospheric retrieval framework for thermal emission spectra of rocky…

Earth and Planetary Astrophysics · Physics 2021-12-22 Anjali A. A. Piette , Nikku Madhusudhan , Avi M. Mandell

The James Webb Space Telescope (JWST) will open up the possibility of comprehensively measuring the emission spectra of rocky exoplanets orbiting M dwarfs to detect and characterize their atmospheres. In preparation for this opportunity, we…

Earth and Planetary Astrophysics · Physics 2019-12-06 Matej Malik , Eliza M. -R. Kempton , Daniel D. B. Koll , Megan Mansfield , Jacob L. Bean , Edwin Kite

The surface characterization of rocky exoplanets via emission spectroscopy represents a frontier of current (JWST) and future (HWO) observational efforts. Here, we implement new features in the open-source retrieval code $\texttt{POSEIDON…

Earth and Planetary Astrophysics · Physics 2026-05-04 Elijah Mullens , Ryan J. MacDonald , Marina E. Gemma , Ishan Mishra , Esteban Gazel , Nikole K. Lewis

We have entered the era of the James Webb Space Telescope (JWST). We use the first JWST transmission spectrum of the hot Saturn-mass exoplanet, WASP-39 b, obtained with the NIRSpec instrument in the 3-5 $\mu$m range to investigate (a) what…

Earth and Planetary Astrophysics · Physics 2023-02-08 Savvas Constantinou , Nikku Madhusudhan , Siddharth Gandhi
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