Article Dans Une Revue Monthly Notices of the Royal Astronomical Society Année : 2011

Magnetic fields and differential rotation on the pre-main sequence - I. The early-G star HD 141943 - brightness and magnetic topologies

Résumé

Spectroscopic and spectropolarimetric observations of the pre-main sequence early-G star HD 141943 were obtained at four observing epochs (in 2006, 2007, 2009 and 2010). The observations were undertaken at the 3.9-m Anglo-Australian Telescope using the UCLES echelle spectrograph and the SEMPOL spectropolarimeter visitor instrument. Brightness and surface magnetic field topologies were reconstructed for the star using the technique of least-squares deconvolution to increase the signal-to-noise ratio of the data.

Dates et versions

hal-03784852 , version 1 (23-09-2022)

Identifiants

Citer

S. C. Marsden, M. M. Jardine, J. C. Rámirez Vélez, Evelyne Alecian, C. J. Brown, et al.. Magnetic fields and differential rotation on the pre-main sequence - I. The early-G star HD 141943 - brightness and magnetic topologies. Monthly Notices of the Royal Astronomical Society, 2011, 413, pp.1922-1938. ⟨10.1111/j.1365-2966.2011.18367.x⟩. ⟨hal-03784852⟩
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