High-Velocity Winds from Hybrid Stars

Details High-Velocity Winds from Hybrid Stars High-Velocity Winds from Hybrid Stars

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984iue..prop.1823h&link_type=abstract

IUE Proposal ID #HYGLH

Physics

Scientific paper

In a previous IUE program, we serendipitously discovered a high-velocity wind from the hybrid star alpha TrA (K4II). The broad absorption in the Mg II h and k line wings would not have been seen if we had not overexposed the emission line cores. Wind velocities are important to determine in order to analyze mechanisms of mass loss, and there is a strong observational bias against seeing high-velocity absorption in the faint h and k line wings of late-type stars. We request further observations of wind variability in hybrid stars, specifically aimed at detecting high velocity winds. The long exposures required will also result in detection of the C II 2326A emission lines, which are useful as a density diagnostic.

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