An Emerging Class of Hot Emission Line Stars: HD 119682

Details An Emerging Class of Hot Emission Line Stars: HD 119682 An Emerging Class of Hot Emission Line Stars: HD 119682

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2340r&link_type=abstract

Chandra Proposal ID #09200535

Computer Science

Chandra Proposal Id #09200535

Scientific paper

Herein we propose to observe the dispersed spectrum of the emission line star HD 119682. Existing CCD-resolution observations show this source to be both luminous and impressively hot, such that its emission cannot be explained by the standard radiatively-driven-wind model for O stars. At more the 4 Myr old, a magnetically confined wind would be unprecedented for a star of its age. Alternatively this may be an example of an emerging class of "gamma Cas analogs", emission-line early B stars with a narrow range of optical properties and X-ray spectra dominated by a hot (>8 keV) thermal component.

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