activity
20162026
most citedRadial-Velocity Fitting Challenge. II. First results of the analysis of the data set

115 citations · 224 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.EP2026

Discovery and characterisation of two exoplanets orbiting the metal-poor, solar-type star TOI-5788 with TESS, CHEOPS, and HARPS-N

Ben S. Lakeland, A. Mortier, R. D. Haywood +48

We present the discovery and characterisation of two transiting exoplanets orbiting the metal-poor, solar-type star TOI-5788. From our analysis of six \textit{TESS} sectors and a d…

astro-ph.EP2025

HARPS-N, TESS, and CHEOPS discover a transiting sub-Neptune and two outer companions around the bright solar analogue HD 85426

F. Lienhard, A. Mortier, A. Collier Cameron +96

We provide a detailed characterisation of the planetary system orbiting HD 85426 (TOI-1774). This bright G-type star (: 0.99 ; : 1.13 $\text{R…

astro-ph.SR2025★ 3 cited

A Decade of Solar High-Fidelity Spectroscopy and Precise Radial Velocities from HARPS-N

X. Dumusque, K. Al Moulla, M. Cretignier +53

We recently released 10 years of HARPS-N solar telescope and the goal of this manuscript is to present the different optimisations made to the data reduction, to describe data cura…

astro-ph.EP2025★ 6 cited

In-depth characterization of the Kepler-10 three-planet system with HARPS-N radial velocities and Kepler transit timing variations

A. S. Bonomo, L. Borsato, V. M. Rajpaul +25

The old G3V star Kepler-10 is known to host two transiting planets, the ultra-short-period super-Earth Kepler-10b ( d; ) and the long-period s…

astro-ph.EP2025★ 3 cited

TESS and HARPS-N unveil two planets transiting TOI-1453. A super-Earth and one of the lowest mass sub-Neptunes

M. Stalport, A. Mortier, M. Cretignier +37

We report on the validation and characterisation of two transiting planets around TOI-1453, a K-dwarf star in the TESS northern continuous viewing zone. In addition to the TESS dat…

astro-ph.SR2024

The Mean Longitudinal Magnetic Field and its Uses in Radial-Velocity Surveys

F. Rescigno, A. Mortier, X. Dumusque +14

This work focuses on the analysis of the mean longitudinal magnetic field as a stellar activity tracer in the context of small exoplanet detection and characterisation in radial-ve…

astro-ph.EP2020★ 97 cited

Separating planetary reflex Doppler shifts from stellar variability in the wavelength domain

A. Collier Cameron, E. B. Ford, S. Shahaf +28

Stellar magnetic activity produces time-varying distortions in the photospheric line profiles of solar-type stars. These lead to systematic errors in high-precision radial-velocity…

astro-ph.EP2016★ 115 cited

Radial-Velocity Fitting Challenge. II. First results of the analysis of the data set

X. Dumusque, F. Borsa, M. Damasso +21

Radial-velocity (RV) signals induce RV variations an order of magnitude larger than the signal created by the orbit of Earth-twins, thus preventing their detection. The goal of thi…