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Symposium - International Astronomical Union Symposium - International Astronomical Union

Article contents

Images of the envelope of Alpha Orionis

Published online by Cambridge University Press:  04 August 2017

Jeremy C. Hebden ,
E. Keith Hege  and
Andreas Eckart
Jeremy C. Hebden
Affiliation:
Steward Observatory University of Arizona Tucson AZ 85721, USA
E. Keith Hege
Affiliation:
Steward Observatory University of Arizona Tucson AZ 85721, USA
Andreas Eckart
Affiliation:
Steward Observatory University of Arizona Tucson AZ 85721, USA
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Abstract

Two images have been obtained, from observations made almost two years apart, of the H-alpha chromospheric envelope of Alpha Orionis at the diffraction limited resolution of the co-phased Multiple Mirror Telescope. Significant emission out to a distance of several stellar radii above the photosphere is observed.

Type
Stellar Coronae: Chromospheres of Cool Stars
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 383 - 384
Copyright
Copyright © Reidel 1987 

References

Altenhoff, W. J., Oster, L., and Wendker, H. J. 1979, Astron. Astrophys., 73, L21.Google Scholar
Hartmann, L., and Avrett, E. H. 1984, Ap. J., 284, 238.CrossRefGoogle Scholar
Hebden, J. C., et al. 1986, Ap. J., 309, In press.Google Scholar
Hebden, J. C., Eckart, A., and Hege, E. K. 1987, Ap. J., 312, In press.Google Scholar
Hebden, J. C., Hege, E. K., and Beckers, J. M. 1986, Opt. Eng., 25, 712.CrossRefGoogle Scholar
Hege, E. K., Beckers, J. M., Strittmatter, P. A., and McCarthy, D. W. 1985, Appl. Opt., 24, 2565.CrossRefGoogle Scholar
Newell, R. T., and Hjellming, R. M. 1982, Ap. J., 263, L85.CrossRefGoogle Scholar

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