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Circumstellar envelope of the supergiant 89 Herculis

Published online by Cambridge University Press:  04 August 2017

J.L. Climenhaga ,
J. Smoliński ,
J. Krempeć-Krygier ,
B. Krygier  and
S. Krawczyk
J.L. Climenhaga
Affiliation:
Department of Physics, University of Victoria, Canada
J. Smoliński
Affiliation:
Polish Academy of Sciences
J. Krempeć-Krygier
Affiliation:
Polish Academy of Sciences
B. Krygier
Affiliation:
N. Copernicus Astronomical Center, Toruń, Poland N. Copernicus University, Toruń, Poland
S. Krawczyk
Affiliation:
N. Copernicus Astronomical Center, Toruń, Poland N. Copernicus University, Toruń, Poland

Extract

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A bright enigmatic supergiant, 89 Her (HD 163506; F2Ia, Mbol=-7m.5), exhibits the light variations (Percy et al. 1979, Fernie 1981, 1983) as well as the changes of radial velocities and structures of Balmer and sodium lines. Sargent and Osmer (1969) have given some evidences for the existence of expanding circumstellar envelope around 89 Her and have discovered 24 emission lines of neutral metals in its spectra.

Type
Mass-Loss From Cool Stars
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 329 - 330
Copyright
Copyright © Reidel 1987 

References

Arellano Ferro, A.: 1984, Pub. Astron. Soc. Pacific, 96, 641.CrossRefGoogle Scholar
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Humphreys, R.M., Ney, E.P.: 1974, Astrophys. J. Letters 187, L75 Google Scholar
Percy, J.R., Baskerville, I., Trevorrov, D.W.: 1979, Pub. Astron. Soc. Pacific, 91, 368 Google Scholar
Sargent, W.L.W., Osmer, P.S.: 1969, in Mass Loss from Stars, ed. Hack, M., Reidel, Dordrecht, Holland, p.57 Google Scholar
Smoliński, J., Climenhaga, J.L., Krempeć-Krygier, J., Krygier, B., Krawczyk, S.: 1980, in Fifth European Regional Meeting: Variability in Stars and Galaxies, Liege, Belgium Google Scholar