Publications (10)
Why are some A stars magnetic, while most are not?
G. A. Wade, J. Silvester, K. Bale +21
A small fraction of intermediate-mass main sequence (A and B type) stars have strong, organised magnetic fields. The large majority of such stars, however, show no evidence for mag…
Weak magnetic fields in Ap/Bp stars: Evidence for a dipole field lower limit and a tentative interpretation of the magnetic dichotomy
M. Auriere, G. A. Wade, J. Silvester +22
We have investigated a sample of 28 well-known spectroscopically-identified magnetic Ap/Bp stars, with weak, poorly-determined or previously undetected magnetic fields, with the ai…
Photospheric magnetic field and surface differential rotation of the FK Com star HD 199178
P. Petit, J. -F. Donati, J. M. Oliveira +11
We present spectropolarimetric observations of the FK Com star HD 199178 obtained between 1998 December and 2003 August at the Telescope Bernard Lyot (Observatoire du Pic du Midi,…
Stellar magnetism: empirical trends with age and rotation
A. A. Vidotto, S. G. Gregory, M. Jardine +12
We investigate how the observed large-scale surface magnetic fields of low-mass stars (~0.1 -- 2 Msun), reconstructed through Zeeman-Doppler imaging (ZDI), vary with age t, rotatio…
A high-resolution spectropolarimetric survey of Herbig Ae/Be stars - II. Rotation
E. Alecian, G. A. Wade, C. Catala +5
We report the analysis of the rotational properties of our sample of Herbig Ae/Be (HAeBe) and related stars for which we have obtained high-resolution spectropolarimetric observati…
A high-resolution spectropolarimetric survey of Herbig Ae/Be stars - I. Observations and measurements
E. Alecian, G. A. Wade, C. Catala +7
This is the first in a series of papers in which we describe and report the analysis of a large survey of Herbig Ae/Be stars in circular spectropolarimetry. Using the ESPaDOnS and…