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Explaining the coexistence of large-scale and small-scale magnetic fields in fully convective stars
Rakesh K. Yadav, Ulrich R. Christensen, Julien Morin +4
Despite the lack of a shear-rich tachocline region low-mass fully convective stars are capable of generating strong magnetic fields, indicating that a dynamo mechanism fundamentall…
A spectro-polarimetric study of the planet-hosting G dwarf, HD 147513
Gaitee A. J. Hussain, Julian David Alvarado-Gómez, Jason Grunhut +12
The results from a spectro-polarimetric study of the planet-hosting Sun-like star, HD 147513 (G5V), are presented here. Robust detections of Zeeman signatures at all observed epoch…
The evolution of surface magnetic fields in young solar-type stars
C. P. Folsom, P. Petit, J. Bouvier +2
Surface rotation rates of young solar-type stars display drastic changes at the end of the pre-main sequence through the early main sequence. This may trigger corresponding changes…
Could a change in magnetic field geometry cause the break in the wind-activity relation?
A. A. Vidotto, J. -F. Donati, M. Jardine +8
Wood et al suggested that mass-loss rate is a function of X-ray flux () for dwarf stars with erg cm s.…
The energy budget of stellar magnetic fields
V. See, M. Jardine, A. A. Vidotto +15
Spectropolarimetric observations have been used to map stellar magnetic fields, many of which display strong bands of azimuthal fields that are toroidal. A number of explanations h…
Activity and Magnetic Field Structure of the Sun-Like Planet Hosting Star HD 1237
J. D. Alvarado-Gómez, G. A. J. Hussain, J. Grunhut +13
We analyse the magnetic activity characteristics of the planet hosting Sun-like star, HD 1237, using HARPS spectro-polarimetric time-series data. We find evidence of rotational mod…