Comparison of variations in the visible and ultraviolet spectra of a Centauri

Details Comparison of variations in the visible and ultraviolet spectra of a Centauri Comparison of variations in the visible and ultraviolet spectra of a Centauri

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apjs...55..507f&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 55, July 1984, p. 507-516.

Astronomy and Astrophysics

Astronomy

1

Stellar Spectra, Ultraviolet Astronomy, Variable Stars, Visible Spectrum, Iue, Line Spectra, Magnetic Variations, Starspots, Stellar Models

Scientific paper

Equivalent-width and central depth measurements of some ultraviolet absorption lines from the spectrum of the He I spectrum variable star a Cen (HD 125823) are presented. The measurements are from 53 short-wavelength and 52 long-wavelength, high-resolution spectrographs taken with the IUE satellite over a 25d period during 1978 July and August. The IUE observations are consistent with a period of 8d.8163±0d.0003 and with a previously unreported period of 9d.2532±0d.0003.

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