activity
20152025
most citedEstimating magnetic filling factors from Zeeman-Doppler magnetograms

93 citations · 448 across the 19 of their papers we have counts for

collaborators

19 papers

astro-ph.SR2025

The magnetic and spin-down properties of slowly rotating fully convective M dwarfs

Victor See, Louis Amard, Stefano Bellotti +19

The evolution of the magnetism, winds and rotation of low-mass stars are all linked. One of the most common ways to probe the magnetic properties of low-mass stars is with the Zeem…

astro-ph.SR2024★ 1 cited

SPIRou spectropolarimetry of the T Tauri star TW Hydrae: magnetic fields, accretion and planets

J. -F. Donati, P. I. Cristofari, L. T. Lehmann +15

In this paper we report near-infrared observations of the classical T Tauri star TW Hya with the SPIRou high-resolution spectropolarimeter and velocimeter at the 3.6-m Canada-Franc…

astro-ph.SR2024

Long-term monitoring of large-scale magnetic fields across optical and near-infrared domains with ESPaDOnS, Narval and SPIRou. The cases of EV Lac, DS Leo, and CN Leo

S. Bellotti, J. Morin, L. T. Lehmann +18

Dynamo models of stellar magnetic fields for partly and fully convective stars are guided by observational constraints. Zeeman-Doppler imaging has revealed a variety of magnetic fi…

astro-ph.SR2023

SPIRou reveals unusually strong magnetic fields of slowly rotating M dwarfs

L. T. Lehmann, J. -F. Donati, P. Fouque +8

In this paper, we study six slowly rotating mid-to-late M~dwarfs (rotation period ) by analysing spectropolarimetric data collected wi…

astro-ph.SR2023

Measuring small-scale magnetic fields of 44 M dwarfs from SPIRou spectra with ZeeTurbo

P. I. Cristofari, J. -F. Donati, C. Moutou +11

We present the results of an analysis aimed at probing the small-scale magnetic fields of M dwarfs observed with SPIRou, the nIR high-resolution spectro-polarimeter installed at th…

astro-ph.SR2023

Magnetic fields & rotation periods of M dwarfs from SPIRou spectra

J. -F. Donati, L. T. Lehmann, P. I. Cristofari +17

We present near-infrared spectropolarimetric observations of a sample of 43 weakly- to moderately-active M dwarfs, carried with SPIRou at the Canada-France-Hawaii Telescope in the…