Discovery of the most rapidly-rotating, non-degenerate, magnetic massive star by the MiMeS collaboration

Type Conference Paper
Names Jason H. Grunhut, Gregg A. Wade, Thomas Rivinius, Wagner L. F. Marcolino, Richard H. D. Townsend, Townsend
Conference Name IAU Symposium
Volume 272
Pages 190-191
Date July 1, 2011
URL http://adsabs.harvard.edu/abs/2011IAUS..272..190G
Library Catalog NASA ADS
Abstract We discuss the recent detection of a strong, organized magnetic field in the bright, broad-line B2V star, HD 142184, using the ESPaDOnS spectropolarimeter on the CFHT as part of the Magnetism in Massive Stars (MiMeS) survey. We find a rotational period of 0.50833 days, making it the fastest-rotating, non-degenerate magnetic star ever detected. Like the previous rapid-rotation record holder HR 7355 (also discovered by MiMeS: Oksala et al. 2010, Rivinius et al. 2010), this star shows emission line variability that is diagnostic of a structured magnetosphere.
Tags Techniques: Spectroscopic, stars: individual (HD 142184), stars: magnetic fields
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