CFHT UM2019 - Presentation Details

Abstract Details

Title: Exploring the magnetic activity of M dwarfs at nIR wavelengths with SPIRou

Presenter: Julien Morin


The new high resolution echelle spectropolarimeter at CFHT, SPIRou, is the ideal instrument to study the magnetic activity of cool stars and search for their planetary companions. Based on commissioning and early science data, we present a first overview of SPIRou capabilities for M dwarf magnetometry and discuss the potential for future improvement -- in particular with the inclusion of molecular lines in our approach. We also report on the study of chromospheric activity in the near-infrared spectral range, a largely unexplored topic so far -- especially in the K-band. Finally, we discuss the connexion between large-scale magnetic field, chromospheric activity, flares and apparent radial velocity variations in the near-infrared for active stars.