Scaling and evolution of stellar magnetic activity
E Işık, JL van Saders, A Reiners, TS Metcalfe - Space Science Reviews, 2023 - Springer
Magnetic activity is a ubiquitous feature of stars with convective outer layers, with
implications from stellar evolution to planetary atmospheres. Investigating the mechanisms …
implications from stellar evolution to planetary atmospheres. Investigating the mechanisms …
The CARMENES search for exoplanets around M dwarfs-Stellar atmospheric parameters of target stars with STEPARSYN
We determined effective temperatures, surface gravities, and metallicities for a sample of
343 M dwarfs observed with CARMENES, the double-channel, high-resolution spectrograph …
343 M dwarfs observed with CARMENES, the double-channel, high-resolution spectrograph …
Two temperate super-Earths transiting a nearby late-type M dwarf
Context. In the age of JWST, temperate terrestrial exoplanets transiting nearby late-type M
dwarfs provide unique opportunities for characterising their atmospheres, as well as …
dwarfs provide unique opportunities for characterising their atmospheres, as well as …
Line-by-line Velocity Measurements: an Outlier-resistant Method for Precision Velocimetry
We present a new algorithm for precision radial velocity (pRV) measurements, a line-by-line
(LBL) approach designed to handle outlying spectral information in a simple but efficient …
(LBL) approach designed to handle outlying spectral information in a simple but efficient …
Where is the water? Jupiter-like C/H ratio but strong H2O depletion found on τ Boötis b using SPIRou
S Pelletier, B Benneke, A Darveau-Bernier… - The Astronomical …, 2021 - iopscience.iop.org
The present-day envelope of gaseous planets is a relic of how these giant planets originated
and evolved. Measuring their elemental composition therefore presents a powerful …
and evolved. Measuring their elemental composition therefore presents a powerful …
APERO: A PipelinE to Reduce Observations—Demonstration with SPIRou
With the maturation of near-infrared high-resolution spectroscopy, especially when used for
precision radial velocity, data reduction has faced unprecedented challenges in terms of …
precision radial velocity, data reduction has faced unprecedented challenges in terms of …
Investigating the young AU Mic system with SPIRou: large-scale stellar magnetic field and close-in planet mass
B Klein, JF Donati, C Moutou, X Delfosse… - Monthly Notices of …, 2021 - academic.oup.com
We present a velocimetric and spectropolarimetric analysis of 27 observations of the 22-Myr
M1 star AU Microscopii (AU Mic) collected with the high-resolution YJHK (0.98–2.35 μm) …
M1 star AU Microscopii (AU Mic) collected with the high-resolution YJHK (0.98–2.35 μm) …
New constraints on the planetary system around the young active star AU Mic-Two transiting warm Neptunes near mean-motion resonance
AU Microscopii (AU Mic) is a young, active star whose transiting planet was recently
detected. Here, we report our analysis of its TESS light curve, where we modeled the BY …
detected. Here, we report our analysis of its TESS light curve, where we modeled the BY …
CO or no CO? Narrowing the CO abundance constraint and recovering the H2O detection in the atmosphere of WASP-127 b using SPIRou
A Boucher, D Lafreniére, S Pelletier… - Monthly Notices of …, 2023 - academic.oup.com
Precise measurements of chemical abundances in planetary atmospheres are necessary to
constrain the formation histories of exoplanets. A recent study of WASP-127 b, a close-in …
constrain the formation histories of exoplanets. A recent study of WASP-127 b, a close-in …
New mass and radius constraints on the LHS 1140 planets: LHS 1140 b is either a temperate mini-Neptune or a water world
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 …
discovery in 2017, notably with Spitzer, HST, TESS, and ESPRESSO, placing strong …