The magnetically quiet solar surface dominates HARPS-N solar RVs during low activity
BS Lakeland, T Naylor, RD Haywood… - Monthly Notices of …, 2024 - academic.oup.com
Using images from the Helioseismic and Magnetic Imager aboard the Solar Dynamics
Observatory, we extract the radial velocity (RV) signal arising from the suppression of …
Observatory, we extract the radial velocity (RV) signal arising from the suppression of …
Closeby Habitable Exoplanet Survey (CHES). I. Astrometric noise and planetary detection efficiency due to stellar spots and faculae
C Bao, J Ji, D Tan, G Chen, X Huang… - The Astronomical …, 2024 - iopscience.iop.org
Abstract The Closeby Habitable Exoplanet Survey (CHES) is dedicated to the astrometric
exploration for habitable-zone Earth-like planets orbiting solar-type stars in close proximity …
exploration for habitable-zone Earth-like planets orbiting solar-type stars in close proximity …
Investigating stellar activity through eight years of Sun-as-a-star observations
B Klein, S Aigrain, M Cretignier… - Monthly Notices of …, 2024 - academic.oup.com
Stellar magnetic activity induces both distortions and Doppler-shifts in the absorption line
profiles of Sun-like stars. Those effects produce apparent radial velocity (RV) signals which …
profiles of Sun-like stars. Those effects produce apparent radial velocity (RV) signals which …
Radial velocities: direct application of Pierre Connes' shift finding algorithm to Cross-Correlation Functions
JL Bertaux, A Ivanova, R Lallement - Astronomy and Astrophysics-A&A, 2024 - aanda.org
Context. Pipelines of state-of-the-art spectrographs dedicated to planet detection provide, for
each exposure, series of cross-correlation functions (CCFs) built with a binary mask (BM), as …
each exposure, series of cross-correlation functions (CCFs) built with a binary mask (BM), as …
A low-mass sub-Neptune planet transiting the bright active star HD 73344
S Sulis, IJM Crossfield, A Santerne… - arXiv preprint arXiv …, 2024 - aanda.org
Context. Planets with radii of between 2 and 4 R⊕ closely orbiting solar-type stars are of
significant importance for studying the transition from rocky to giant planets, and are prime …
significant importance for studying the transition from rocky to giant planets, and are prime …
Confrontation between modelled solar integrated observables and direct observations I. Radial velocities and convective blueshift
N Meunier, AM Lagrange, X Dumusque… - arXiv preprint arXiv …, 2024 - aanda.org
Context. Stellar variability strongly impacts the search for low-mass exoplanets with radial
velocity techniques. Two types of planetfree time series can be used to quantify this impact …
velocity techniques. Two types of planetfree time series can be used to quantify this impact …