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Multisite, Multiwavelength Studies of the Active Cool Binary CC Eri

  • E. Budding
  • N. Erkan
  • C. Bembrick
  • B. D. Carter
  • I. Waite
  • M. Jardine
  • S. C. Marsden
  • R. Osten
  • P. Petit
  • M. Semel
  • O. B. Slee
Chapter

Abstract

New data acquired on the active, cool binary CC Eri ranged across the spectrum from Chandra X-ray to broadband photometry and microwave observations using the VLA and ATCA. Also, high-dispersion spectropolarimetry using the AAT enabled Zeeman-Doppler imaging to be performed. Our interpretations infer strong localised concentrations of the stellar magnetic field, manifested by surface activity and related large coronal plasma structures. Comprehensive matching of the modelling parameters awaits more detailed investigation.

This brief interim review includes consideration of the ATCA data. Microwave radio emission is usually low level (‘quiescent’), but occasionally flares of several mJy peak intensity are observed. We associate the emission, generally, with wave-like mechanisms, expanding through the outer atmosphere. Related characteristics of this emission are discussed.

Keywords

Stars: activity Stars: coronae Stars: individual: CC Eri Radio continuum: stars Techniques: miscellaneous 

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Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  • E. Budding
    • 1
    • 2
  • N. Erkan
    • 2
  • C. Bembrick
    • 3
  • B. D. Carter
    • 4
  • I. Waite
    • 4
  • M. Jardine
    • 5
  • S. C. Marsden
    • 6
  • R. Osten
    • 7
  • P. Petit
    • 8
  • M. Semel
    • 9
  • O. B. Slee
    • 10
  1. 1.Carter ObservatoryWellingtonNew Zealand
  2. 2.Physics Dept.18th March University of CanakkaleTurkey
  3. 3.Mt Tarana ObservatoryBathurstAustralia
  4. 4.Centre for Astronomy, Solar Radiation and ClimateUniversity of Southern QueenslandToowoombaAustralia
  5. 5.School of Physics and AstronomyUniversity of St AndrewsFifeScotland
  6. 6.Institute of AstronomyETHZZurichSwitzerland
  7. 7.National Radio Astronomy ObservatoryCharlottesvilleUSA
  8. 8.Max Planck Institut für SonnensystemforschungKatlenburg-LindauGermany
  9. 9.Observatoire de MeudonLESIAParisFrance
  10. 10.Australia Telescope National FacilityMarsfieldAustralia

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