Lava worlds: From early earth to exoplanets

KH Chao, R deGraffenried, M Lach, W Nelson, K Truax… - Geochemistry, 2021 - Elsevier
The magma ocean concept was first conceived to explain the geology of the Moon, but
hemispherical or global oceans of silicate melt could be a widespread “lava world” phase of …

K2 and Spitzer phase curves of the rocky ultra-short-period planet K2-141 b hint at a tenuous rock vapor atmosphere

S Zieba, M Zilinskas, L Kreidberg, TG Nguyen… - Astronomy & …, 2022 - aanda.org
K2-141 b is a transiting, small (1.5 R⊕) ultra-short-period (USP) planet discovered by the
Kepler space telescope orbiting a K-dwarf host star every 6.7 h. The planet's high surface …

Possible atmospheric diversity of low mass exoplanets–some central aspects

JL Grenfell, J Leconte, F Forget, M Godolt… - Space Science …, 2020 - Springer
Exoplanetary science continues to excite and surprise with its rich diversity. We discuss here
some key aspects potentially influencing the range of exoplanetary terrestrial-type …

No escaping helium from 55 Cnc e

M Zhang, HA Knutson, L Wang, F Dai… - The Astronomical …, 2021 - iopscience.iop.org
We search for escaping helium from the hot super-Earth 55 Cnc e by taking high-resolution
spectra of the 1083 nm line during two transits using Keck/NIRSPEC. We detect no helium …

CHEOPS precision phase curve of the Super-Earth 55 Cancri e

BM Morris, L Delrez, A Brandeker, AC Cameron… - Astronomy & …, 2021 - aanda.org
Context. 55 Cnc e is a transiting super-Earth (radius 1.88 R⊕ and mass 8 M⊕) orbiting a
G8V host star on a 17-h orbit. Spitzer observations of the planet's phase curve at 4.5 μm …

Exfoliated 2D Layered and Nonlayered Metal Phosphorous Trichalcogenides Nanosheets as Promising Electrocatalysts for CO2 Reduction

H Wang, Y Jiao, B Wu, D Wang, Y Hu… - Angewandte …, 2023 - Wiley Online Library
Abstract Two‐dimensional (2D) materials catalysts provide an atomic‐scale view on a
fascinating arena for understanding the mechanism of electrocatalytic carbon dioxide …

Investigating the visible phase-curve variability of 55 Cnc e

EAM Valdés, BM Morris, BO Demory… - Astronomy & …, 2023 - aanda.org
Context. 55 Cnc e is an ultra-short period super-Earth transiting a Sun-like star. Previous
observations in the optical range detected a time-variable flux modulation that is phased …

Revisiting the iconic spitzer phase curve of 55 Cancri e: hotter dayside, cooler nightside, and smaller phase offset

SJ Mercier, L Dang, A Gass, NB Cowan… - The Astronomical …, 2022 - iopscience.iop.org
Thermal phase curves of short-period exoplanets provide the best constraints on the
atmospheric dynamics and heat transport in their atmospheres. The published Spitzer …

55 Cancri e's occultation captured with CHEOPS

BO Demory, S Sulis, EM Valdés, L Delrez… - Astronomy & …, 2023 - aanda.org
Past occultation and phase-curve observations of the ultra-short period super-Earth 55 Cnc
e obtained at visible and infrared wavelengths have been challenging to reconcile with a …

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 …