Comparisons of images derived from independent Zeeman Doppler imaging codes

GAJ Hussain, J-F Donati, Andrew Collier Cameron, JR Barnes

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

We compare surface brightness and magnetic field surface maps for the K0 dwarf AB Doradus, obtained using two independently developed Zeeman Doppler imaging codes. We find that even the fine structure in the two sets of images shows excellent agreement. Magnetic field maps appear to be less sensitive to line-modelling effects than brightness maps. We argue that these results point to the consistency and reliability of Doppler imaging techniques even when using poorly sampled data sets, provided that the spectra used are of sufficiently high signal-to-noise ratio.

Original languageEnglish
Pages (from-to)pp.961-973.
Number of pages13
JournalMonthly Notices of the Royal Astronomical Society
Volume318
Issue number4
Publication statusPublished - 11 Nov 2000

Keywords

  • polarization
  • stars : activity
  • stars : imaging
  • stars : individual : HD 36705
  • stars : late-type
  • stars : magnetic fields
  • CLEAN-LIKE APPROACH
  • AB DORADUS
  • ACTIVE STARS
  • RECONSTRUCTION
  • SENSITIVITY
  • HD-26337
  • LINE

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