Hostname: page-component-7b7567c8c-lpg2g Total loading time: 0 Render date: 2026-11-15T16:27:33.737Z Has data issue: false hasContentIssue false
  • English
  • Français

The Spectrum Variable a Centauri (HD 125 823)

Published online by Cambridge University Press:  12 April 2016

D. A. Klinglesmith,
P. L. Bernacca and
H. Frey
D. A. Klinglesmith
Affiliation:
NASA, Goddard Space Flight Center Greenbelt
P. L. Bernacca
Affiliation:
NASA, Goddard Space Flight Center Greenbelt
H. Frey
Affiliation:
College Park, Maryland

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

High dispersion spectra in the blue violet region and OAO II spectral scans in the UV of the star a Centauri are presented. The variation of equivalent widths and radial velocity are presented. The appearance and disappearance of the forbidden lines of helium, the change in the wing structure of λ 4471 of He I, the strengthening of the UV resonance lines at phase 0.5 and the presence of the UV feature of λ 1720 indicate that the star’s atmosphere is experiencing drastic density changes.

Information

Type
IV. Duplicity and its Consequences among the Intrinsic Variable Stars
Information
International Astronomical Union Colloquium , Volume 15: New Directions and Frontiers in Variable Stars Research , 1971, pp. 205 - 216
Copyright
Copyright © Cambridge University Press 1971

References

Jaschek, M., Jaschek, C., and Kucewicz, B., 1968, Nature, 219, 1137.Google Scholar
Jaschek, C., Jaschek, M., Morgan, W. W., and Slettebak, A., 1968, Ap. J. Letters, 153, L87.CrossRefGoogle Scholar
Norris, J., 1968, Nature, 219, 1342.Google Scholar
Norris, J., 1971, Ap. J. Suppl., 23, 235.CrossRefGoogle Scholar
Underhill, A. B., Leckrone, D. S., and West, D. K., 1972, Ap. J. in press.Google Scholar