Line profile variation in delta-Orionis A, l-Orionis A, and 15 Monocerotis

Details Line profile variation in delta-Orionis A, l-Orionis A, and 15 Monocerotis Line profile variation in delta-Orionis A, l-Orionis A, and 15 Monocerotis

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...283..218g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 283, Aug. 1, 1984, p. 218-225.

Astronomy and Astrophysics

Astronomy

6

Early Stars, O Stars, Spectral Line Width, Stellar Spectra, Stellar Winds, Gas Ionization, Iue, Resonance Lines, Ultraviolet Astronomy

Scientific paper

The results of a monitoring program with IUE and Einstein are presented for three stars, δ Ori A, ι Ori A, and 15 Mon. Line profile variability is observed in the UV profiles accessible to IUE and the relation between the variation in the different ions suggests that the ionization level is varying in the winds of these stars. This is consistent with Einstein observations of soft X-ray variability for two of the stars.

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