Hostname: page-component-7c8c6479df-8mjnm Total loading time: 0 Render date: 2024-03-29T01:17:39.390Z Has data issue: false hasContentIssue false

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

Published online by Cambridge University Press:  12 July 2011

Jason H. Grunhut
Affiliation:
Kingston, Canada
Gregg A. Wade
Affiliation:
Kingston, Canada
Thomas Rivinius
Affiliation:
ESOChile
Wagner L. F. Marcolino
Affiliation:
Marseille, France
Richard H.D. Townsend
Affiliation:
Madison, USA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

References

Oksala, M. E., Wade, G. A., Marcolino, W. L. F., Grunhut, J. et al. 2010, MNRAS, 405, L51Google Scholar
Rivinius, T., Szeifert, T., Barrera, L., Townsend, R. H. D. et al. 2010, MNRAS, 405, L46CrossRefGoogle Scholar
Townsend, R. H. D. & Owocki, S. P. 2005, MNRAS, 357, 251Google Scholar
Townsend, R. H. D., Owocki, S. P., & Groote, D. 2005, ApJ (Letters), 630, L81Google Scholar
Townsend, R. H. D. 2008, MNRAS, 389, 559Google Scholar