Simultaneous optical and ultraviolet observations of variability in HD 50896

Details Simultaneous optical and ultraviolet observations of variability in HD 50896 Simultaneous optical and ultraviolet observations of variability in HD 50896

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.221..197s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 221, no. 1-2, p. 197-213

Astronomy and Astrophysics

Astronomy

3

Stellar Physics, Stellar Spectra, Stellar Winds, Ultraviolet Astronomy, Ultraviolet Spectra, Variability, Visible Spectrum, Wolf-Rayet Stars, Cygnus Constellation, Light Emission, Line Spectra, Spectroscopy

Scientific paper

In this paper, simultaneous optical and ultraviolet observations of spectral variability of the WN5 star HD 50896 are presented. Night-to-night and shorter timescale changes were found in the shape and intensity of most emission lines and P Cygni profiles in both wavelength ranges but there is no clear link between the ultraviolet and optical variability. There are some indications that the ultraviolet variations occur in phase with the well-known 3.766-day period often associated with this star.

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