4 papers
The rotational and magnetic properties of Polaris from long-term spectropolarimetric monitoring
James A. Barron, Gregg A. Wade, Colin P. Folsom
Polaris is a highly unusual Cepheid with observed properties that are difficult to reconcile with stellar evolutionary models. Since the initial detection of Polaris' magnetic fiel…
Discovery of a rapidly evolving global magnetic field in the M-dwarf YZ Cet and constraints on the magnetic field of its planet YZ Cet b
Ayan Biswas, Colin P. Folsom, James A. Barron +3
We present a spectropolarimetric study of the nearby M4.5V exoplanet host star YZ Cet, based on near-infrared observations obtained with the SpectroPolarimètre InfraRouge (SPIRou)…
A magnetic field detection in the massive O-type bright giant 63 Oph
James A. Barron, Gregg A. Wade, Gonzalo Holgado +1
Surface magnetic fields are detected in less than of the massive O-type star population and even less frequently among `old' massive stars approaching the terminal-age main…
Magnetic field monitoring of four massive A-F supergiants
Gregg Wade, Mary Oksala, Coralie Neiner +2
We report magnetic field measurements spanning about 15 years of four massive () supergiant stars: Per (HD\,20902, F5Iab), Lep (HD\,36673A, F0Ib), Le…