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 …

Conclusive evidence for a population of water worlds around M dwarfs remains elusive

JG Rogers, HE Schlichting… - The Astrophysical Journal …, 2023 - iopscience.iop.org
The population of small, close-in exoplanets is bifurcated into super-Earths and sub-
Neptunes. We calculate physically motivated mass–radius relations for sub-Neptunes, with …

The California-Kepler Survey. X. The radius gap as a function of stellar mass, metallicity, and age

EA Petigura, JG Rogers, H Isaacson… - The Astronomical …, 2022 - iopscience.iop.org
Abstract In 2017, the California-Kepler Survey (CKS) published its first data release (DR1) of
high-resolution optical spectra of 1305 planet hosts. Refined CKS planet radii revealed that …

The exoplanet radius valley from gas-driven planet migration and breaking of resonant chains

A Izidoro, HE Schlichting, A Isella… - The Astrophysical …, 2022 - iopscience.iop.org
The size frequency distribution of exoplanet radii between 1 and 4R⊕ is bimodal with peaks
at∼ 1.4 R⊕ and∼ 2.4 R⊕, and a valley at∼ 1.8 R⊕. This radius valley separates two …

A deep radius valley revealed by Kepler short cadence observations

CSK Ho, V Van Eylen - Monthly Notices of the Royal …, 2023 - academic.oup.com
The characteristics of the radius valley, ie an observed lack of planets between 1.5 and 2
Earth radii at periods shorter than about 100 d, provide insights into the formation and …

A catalog of habitable zone exoplanets

ML Hill, K Bott, PA Dalba, T Fetherolf… - The Astronomical …, 2023 - iopscience.iop.org
The search for habitable planets has revealed many planets that can vary greatly from an
Earth analog environment. These include highly eccentric orbits, giant planets, different bulk …

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 …

Map** out the parameter space for photoevaporation and core-powered mass-loss

JE Owen, HE Schlichting - Monthly Notices of the Royal …, 2024 - academic.oup.com
Understanding atmospheric escape in close-in exoplanets is critical to interpreting their
evolution. We map out the parameter space over which photoevaporation and core-powered …

A radius valley between migrated steam worlds and evaporated rocky cores

R Burn, C Mordasini, L Mishra, J Haldemann… - Nature …, 2024 - nature.com
The radius valley (or gap) in the observed distribution of exoplanet radii, which separates
smaller super-Earths from larger sub-Neptunes, is a key feature that theoretical models must …

High tide or riptide on the cosmic shoreline? A water-rich atmosphere or stellar contamination for the warm super-earth gj 486b from JWST observations

SE Moran, KB Stevenson, DK Sing… - The Astrophysical …, 2023 - iopscience.iop.org
Planets orbiting M-dwarf stars are prime targets in the search for rocky exoplanet
atmospheres. The small size of M dwarfs renders their planets exceptional targets for …