The New Generation Planetary Population Synthesis (NGPPS)-IV. Planetary systems around low-mass stars

R Burn, M Schlecker, C Mordasini… - Astronomy & …, 2021 - aanda.org
Context. Previous theoretical works on planet formation around low-mass stars have often
been limited to large planets and individual systems. As current surveys routinely detect …

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 …

Hot exoplanetary atmospheres in 3D

W Pluriel - Remote Sensing, 2023 - mdpi.com
Hot giant exoplanets are very exotic objects with no equivalent in the Solar System that
allow us to study the behavior of atmospheres under extreme conditions. Their thermal and …

Evolution of the radius valley around low-mass stars from Kepler and K2

R Cloutier, K Menou - The Astronomical Journal, 2020 - iopscience.iop.org
We present calculations of the occurrence rate of small close-in planets around low-mass
dwarf stars using the known planet populations from the Kepler and K2 missions. Applying …

Warm terrestrial planet with half the mass of Venus transiting a nearby star

ODS Demangeon, MRZ Osorio, Y Alibert… - Astronomy & …, 2021 - aanda.org
In recent years, the advent of a new generation of radial velocity instruments has allowed us
to detect planets with increasingly lower mass and to break the one Earth-mass barrier. Here …

The EXPRES stellar signals project II. State of the field in disentangling photospheric velocities

LL Zhao, DA Fischer, EB Ford, A Wise… - The Astronomical …, 2022 - iopscience.iop.org
Measured spectral shifts due to intrinsic stellar variability (eg, pulsations, granulation) and
activity (eg, spots, plages) are the largest source of error for extreme-precision radial-velocity …

New Mass and Radius Constraints on the LHS 1140 Planets: LHS 1140 b Is either a Temperate Mini-Neptune or a Water World

C Cadieux, M Plotnykov, R Doyon… - The Astrophysical …, 2024 - iopscience.iop.org
The two-planet transiting system LHS 1140 has been extensively observed since its
discovery in 2017, notably with Spitzer, HST, TESS, and ESPRESSO, placing strong …

[HTML][HTML] Two temperate Earth-mass planets orbiting the nearby star GJ 1002

AS Mascareño, E González-Álvarez… - Astronomy & …, 2023 - aanda.org
We report the discovery and characterisation of two Earth-mass planets orbiting in the
habitable zone of the nearby M-dwarf GJ 1002 based on the analysis of the radial-velocity …

The mass-radius relation of exoplanets revisited

S Müller, J Baron, R Helled, F Bouchy… - Astronomy & …, 2024 - aanda.org
Determining the mass–radius (M− R) relation of exoplanets is important for exoplanet
characterization. Here, we present a re-analysis of the M− R relations and their transitions …

First light of VLT/HiRISE: High-resolution spectroscopy of young giant exoplanets

A Vigan, M El Morsy, M Lopez, G Otten… - Astronomy & …, 2024 - aanda.org
A major endeavor of this decade is the direct characterization of young giant exoplanets at
high spectral resolution to determine the composition of their atmosphere and infer their …