A reflective, metal-rich atmosphere for GJ 1214b from its JWST phase curve

EMR Kempton, M Zhang, JL Bean, ME Steinrueck… - Nature, 2023 - nature.com
There are no planets intermediate in size between Earth and Neptune in our Solar System,
yet these objects are found around a substantial fraction of other stars. Population statistics …

TESS transit timing of hundreds of hot Jupiters

ES Ivshina, JN Winn - The Astrophysical Journal Supplement …, 2022 - iopscience.iop.org
We provide a database of transit times and updated ephemerides for 382 planets based on
data from the NASA Transiting Exoplanet Survey Satellite (TESS) and previously reported …

Confirmation of Subsolar Metallicity for WASP-77Ab from JWST Thermal Emission Spectroscopy

PC August, JL Bean, M Zhang, J Lunine… - The Astrophysical …, 2023 - iopscience.iop.org
We present the dayside thermal emission spectrum of WASP-77Ab from 2.8 to 5.2 μm as
observed with the NIRSpec instrument on the James Webb Space Telescope (JWST) …

The upper edge of the Neptune desert is stable against photoevaporation

S Vissapragada, HA Knutson… - The Astronomical …, 2022 - iopscience.iop.org
Transit surveys indicate that there is a deficit of Neptune-sized planets on close-in orbits. If
this" Neptune desert" is entirely cleared out by atmospheric mass loss, then planets at its …

Homogeneous search for helium in the atmosphere of 11 gas giant exoplanets with SPIRou

R Allart, PB Lemée-Joliecoeur, AY Jaziri… - Astronomy & …, 2023 - aanda.org
The metastable helium triplet in the near-infrared (10 833 Å) is among the most important
probes of exoplanet atmospheres. It can trace their extended outer layers and constrain …

Spatially resolving the terminator: variation of Fe, temperature, and winds in WASP-76 b across planetary limbs and orbital phase

S Gandhi, A Kesseli, I Snellen, M Brogi… - Monthly Notices of …, 2022 - academic.oup.com
Exoplanet atmospheres are inherently three-dimensional systems in which thermal/chemical
variation and winds can strongly influence spectra. Recently, the ultra-hot Jupiter WASP-76 …

The Ariel target list: The impact of TESS and the potential for characterizing multiple planets within a system

B Edwards, G Tinetti - The Astronomical Journal, 2022 - iopscience.iop.org
The Ariel Target List: The Impact of TESS and the Potential for Characterizing Multiple
Planets within a System - IOPscience Skip to content IOP Science home Accessibility Help …

ExoClock Project. III. 450 new exoplanet ephemerides from ground and space observations

A Kokori, A Tsiaras, B Edwards, A Jones… - The Astrophysical …, 2023 - iopscience.iop.org
The number of exoplanets discovered already exceeds 5000 and continues to increase
daily. The characterization of exoplanets will be the main goal of future space missions. The …

Characterizing a world within the hot-Neptune desert: Transit observations of LTT 9779 b with the hubble space telescope/WFC3

B Edwards, Q Changeat, A Tsiaras, A Allan… - The Astronomical …, 2023 - iopscience.iop.org
We present an atmospheric analysis of LTT 9779 b, a rare planet situated in the hot-Neptune
desert, that has been observed with Hubble Space Telescope (HST)/WFC3 with G102 and …

Examining the orbital decay targets KELT-9 b, KELT-16 b, and WASP-4b, and the transit-timing variations of HD 97658 b

JV Harre, AMS Smith, SCC Barros, G Boué… - Astronomy & …, 2023 - aanda.org
Context. Tidal orbital decay is suspected to occur for hot Jupiters in particular, with the only
observationally confirmed case of this being WASP-12b. By examining this effect …