Multiwavelength Observations of Magnetic Fields and Related Activity on XI Bootis A

  • Steven H. Saar
  • J. Huovelin
  • Mark S. Giampapa
  • Jeffrey L. Linsky
  • Carole Jordan
Part of the Astrophysics and Space Science Library book series (ASSL, volume 143)


We present preliminary results of coordinated observations of magnetic fields and related activity on the active dwarf, ξ Boo A. Combining the magnetic fluxes with the linear polarization data, we construct a simple map of the stellar active regions.


Magnetic Flux Linear Polarization Line Flux Crimean Astrophysical Observatory Photospheric Magnetic Field 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Huovelin, J., Linnaluoto, S., Piirola, V., Tuominen, I., and Virtanen, H. 1985, Astr. Ap. 152, 357.ADSGoogle Scholar
  2. Huovelin, J., Saar, S. H., Tuominen, I., Linnaluoto, S., and Virtanen, H. 1987, Ap. J., submitted.Google Scholar
  3. Landi Degl’Innocenti, E. 1982, Astr. Ap., 110, 25.ADSGoogle Scholar
  4. Marcy, G. W. 1984, Ap. J., 276, 286.ADSCrossRefGoogle Scholar
  5. Noyes, R. W., Hartmann, L., Baliunas, S. L., Duncan, D. K., and Vaughan, A. H. 1984, Ap. J., 279, 793.ADSCrossRefGoogle Scholar
  6. Piirola, V. 1973, Astr. Ap., 27, 383.ADSGoogle Scholar
  7. Saar, S. H. 1987, Ap. J., in press.Google Scholar
  8. Saar, S. H., and Schrijver, C. J. 1987, presented at The Fifth Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, Boulder, CO, July 8–11, 1987.Google Scholar
  9. Vaughan, A. H., Preston, G. W., and Wilson, O. C. 1978, Pub. A. S. P. 90, 276ADSCrossRefGoogle Scholar
  10. Vogt, S. S., and Penrod, G. D. 1983, Pub. A. S. P., 95, 565.ADSCrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • Steven H. Saar
    • 1
  • J. Huovelin
    • 2
    • 1
  • Mark S. Giampapa
    • 3
  • Jeffrey L. Linsky
    • 4
    • 5
  • Carole Jordan
    • 6
  1. 1.Joint Institute for Laboratory AstrophysicsUniversity of Colorado and NBSBoulderUSA
  2. 2.Observatory and Astrophysics LaboratoryUniversity of HelsinkiFinland
  3. 3.National Solar ObservatoryTucsonUSA
  4. 4.Joint Institute for Laboratory AstrophysicsUniversity of Colorado and NBSBoulderUSA
  5. 5.Quantum Physics DivisionNational Bureau of StandardsBureau
  6. 6.Department of Theoretical PhysicsOxford UniversityOxfordUK

Personalised recommendations