Transiting exoplanet atmospheres in the era of JWST

EMR Kempton, HA Knutson - Reviews in Mineralogy …, 2024 - pubs.geoscienceworld.org
The field of exoplanet atmospheric characterization has recently made considerable
advances with the advent of high-resolution spectroscopy from large ground-based …

No thick carbon dioxide atmosphere on the rocky exoplanet TRAPPIST-1 c

S Zieba, L Kreidberg, E Ducrot, M Gillon, C Morley… - Nature, 2023 - nature.com
Seven rocky planets orbit the nearby dwarf star TRAPPIST-1, providing a unique opportunity
to search for atmospheres on small planets outside the Solar System. Thanks to the recent …

Exoplanet Geology: What can we learn from current and future observations?

BJ Foley - Reviews in Mineralogy and Geochemistry, 2024 - pubs.geoscienceworld.org
OVERVIEW 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 …

Sulfur dioxide in the mid-infrared transmission spectrum of WASP-39b

D Powell, AD Feinstein, EKH Lee, M Zhang, SM Tsai… - Nature, 2024 - nature.com
The recent inference of sulfur dioxide (SO2) in the atmosphere of the hot (approximately
1,100 K), Saturn-mass exoplanet WASP-39b from near-infrared JWST observations …

Double trouble: two transits of the super-Earth GJ 1132 b observed with JWST NIRSpec G395H

EM May, RJ MacDonald, KA Bennett… - The Astrophysical …, 2023 - iopscience.iop.org
The search for rocky planet atmospheres with JWST has focused on planets transiting M
dwarfs. Such planets have favorable planet-to-star size ratios, enhancing the amplitude of …

Multiple Clues for Dayside Aerosols and Temperature Gradients in WASP-69 b from a Panchromatic JWST Emission Spectrum

E Schlawin, S Mukherjee, K Ohno, TJ Bell… - The Astronomical …, 2024 - iopscience.iop.org
WASP-69 b is a hot, inflated, Saturn-mass planet (0.26 M Jup) with a zero-albedo
equilibrium temperature of 963 K. Here, we report the JWST 2–12 μm emission spectrum of …

Possible Hycean conditions in the sub-Neptune TOI-270 d

M Holmberg, N Madhusudhan - Astronomy & Astrophysics, 2024 - aanda.org
The JWST has ushered in a new era in atmospheric characterisations of temperate low-
mass exoplanets with recent detections of carbon-bearing molecules in the candidate …

Characterizing the Near-infrared Spectra of Flares from TRAPPIST-1 during JWST Transit Spectroscopy Observations

WS Howard, AF Kowalski, L Flagg… - The Astrophysical …, 2023 - iopscience.iop.org
We present the first analysis of JWST near-infrared spectroscopy of stellar flares from
TRAPPIST-1 during transits of rocky exoplanets. Four flares were observed from 0.6–2.8 μm …

JWST/NIRISS and HST: Exploring the improved ability to characterize exoplanet atmospheres in the JWST era

C Fisher, J Taylor, V Parmentier… - Monthly Notices of …, 2024 - academic.oup.com
ABSTRACT The Hubble Space Telescope has been a pioneering instrument for studying
the atmospheres of exoplanets, specifically its WFC3 and STIS instruments. With the launch …

Analogous response of temperate terrestrial exoplanets and Earth's climate dynamics to greenhouse gas supplement

A Hochman, TD Komacek, P De Luca - Scientific Reports, 2023 - nature.com
Humanity is close to characterizing the atmospheres of rocky exoplanets due to the advent
of JWST. These astronomical observations motivate us to understand exoplanetary …