NASA NTRS · 19960014868
The unusual interacting S star binary HR 1105
Abstract
IUE observations of HR 1105 over its 596-day orbit show strong orbital modulation of both continuum and emission lines. These are most intense just before both conjunctions and nearly disappear near quadratures, the most intense phase being just before the hot component passes in front of the S star. High dispersion observations exhibit a blue-shifted absorption feature in Mg II, representing an outflow of material of about 55 km/s. These observations are consistent with the UV source being an optically thin gas stream between the components of the system, which is partially eclipsed when the S star is in front.
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Ake, Thomas B., III, Johnson, Hollis R., Bopp, Bernard W.. 1994-01-01. The unusual interacting S star binary HR 1105. https://ntrs.nasa.gov/citations/19960014868
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