Oral Presentation Astronomical Society of Australia Annual Scientific Meeting including HWWS 2013

Doppler Imaging of AB Doradus (#60)

Donna M Burton 1 , Brad D Carter 1 , Stephen C Marsden 1
  1. University of Southern Queensland, Coonabarabran, NSW, Australia

I present the results of Doppler Imaging observations of the active young K dwarf star AB Doradus from 2008 to 2013 using the ANU 2.3m telescope with its Echelle spectrograph. Doppler Imaging is a well established method for probing stellar magnetic dynamos which generate magnetic fields and activity cycles. Dark surface spot features on rapidly-rotating stars cause "bumps" in the line profiles of such stars. Doppler Imaging then inverts a time series of these "bumps" to produce a map of the surface spot features on a star.