Stellar obliquities in exoplanetary systems

SH Albrecht, RI Dawson, JN Winn - Publications of the …, 2022 - iopscience.iop.org
The rotation of a star and the revolutions of its planets are not necessarily aligned. This
article reviews the measurement techniques, key findings, and theoretical interpretations …

SO2, silicate clouds, but no CH4 detected in a warm Neptune

A Dyrek, M Min, L Decin, J Bouwman, N Crouzet… - Nature, 2024 - nature.com
WASP-107b is a warm (approximately 740 K) transiting planet with a Neptune-like mass of
roughly 30.5 M⊕ and Jupiter-like radius of about 0.94 RJ (refs.,), whose extended …

A high internal heat flux and large core in a warm Neptune exoplanet

L Welbanks, TJ Bell, TG Beatty, MR Line, K Ohno… - Nature, 2024 - nature.com
Interactions between exoplanetary atmospheres and internal properties have long been
proposed to be drivers of the inflation mechanisms of gaseous planets and apparent …

A warm Neptune's methane reveals core mass and vigorous atmospheric mixing

DK Sing, Z Rustamkulov, DP Thorngren, JK Barstow… - Nature, 2024 - nature.com
Observations of transiting gas giant exoplanets have revealed a pervasive depletion of
methane,,–, which has only recently been identified atmospherically,. The depletion is …

Evidence for the volatile-rich composition of a 1.5-Earth-radius planet

C Piaulet, B Benneke, JM Almenara, D Dragomir… - Nature …, 2023 - nature.com
The population of planets smaller than approximately 1.7 Earth radii (R⊕) is widely
interpreted as consisting of rocky worlds, generally referred to as super-Earths. This picture …

The occurrence rate of giant planets orbiting low-mass stars with TESS

EM Bryant, D Bayliss, V Van Eylen - Monthly Notices of the Royal …, 2023 - academic.oup.com
We present a systematic search for transiting giant planets () orbiting nearby low-mass stars
(). The formation of giant planets around low-mass stars is predicted to be rare by the core …

DREAM-I. Orbital architecture orrery

V Bourrier, O Attia, M Mallonn, A Marret… - Astronomy & …, 2023 - aanda.org
The distribution of close-in exoplanets is shaped by a complex interplay between
atmospheric and dynamical processes. The Desert-Rim Exoplanets Atmosphere and …

JWST/NIRISS reveals the water-rich “steam world” atmosphere of GJ 9827 d

C Piaulet-Ghorayeb, B Benneke… - The Astrophysical …, 2024 - iopscience.iop.org
With sizable volatile envelopes but smaller radii than the solar system ice giants, sub-
Neptunes have been revealed as one of the most common types of planet in the galaxy …

JWST COMPASS: A NIRSpec/G395H Transmission Spectrum of the Sub-Neptune TOI-836c

NL Wallack, NE Batalha, L Alderson… - The Astronomical …, 2024 - iopscience.iop.org
Planets between the sizes of Earth and Neptune are the most common in the Galaxy,
bridging the gap between the terrestrial and giant planets in our solar system. Now that we …

JWST COMPASS: NIRSpec/G395H Transmission Observations of the Super-Earth TOI-836b

L Alderson, NE Batalha, HR Wakeford… - The Astronomical …, 2024 - iopscience.iop.org
We present two transit observations of the∼ 870 K, 1.7 R⊕ super-Earth TOI-836b with
JWST NIRSpec/G395H, resulting in a 2.8–5.2 μm transmission spectrum. Using two different …