| Type |
Conference Paper |
| Names |
Mary E. Oksala, Gregg A. Wade, Wagner L. F. Marcolino, Jason H. Grunhut, David Bohlender, Nadine Manset, Richard H. D. Townsend, Townsend |
| Conference Name |
IAU Symposium |
| Volume |
272 |
| Pages |
204-205 |
| Date |
July 1, 2011 |
| URL |
http://adsabs.harvard.edu/abs/2011IAUS..272..204O |
| Library Catalog |
NASA ADS |
| Abstract |
We report on the detection of a strong, organized magnetic field in the helium-variable early B-type star HR 7355 using spectropolarimetric data obtained with ESPaDOnS on CFHT by the MiMeS large program. We also present results from new V-band differential photometry obtained with the CTIO 0.9m telescope. We investigate the longitudinal field, using a technique called Least-Squares Deconvolution (LSD), and the rotational period of HR 7355. These new observations strongly support the proposal that HR 7355 harbors a structured magnetosphere similar to that in the prototypical helium-strong star, σ Ori E. |
| Tags |
Stars: Circumstellar Matter, Techniques: Polarimetric, stars: early-type, stars: individual (HR 7355), stars: magnetic fields, stars: rotation |