Magnetic observations of pulsating B and Be stars with ESPaDOnS and Narval

Discoveries of magnetic fields in pulsating B and Be stars have been claimed from low-resolution spectropolarimetric observations with FORS1 at VLT. We used the new generation of high-resolution spectropolarimeters, ESPaDOnS at CFHT and NARVAL at TBL, to check for the existence of these fields. We f...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2008-11, Vol.4 (S259), p.391-392
Main Authors: Silvester, James, Neiner, C., Henrichs, H. F., Wade, G. A., Alecian, E., Petit, V.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics
B stars
Contributed Papers
Data search
Magnetic fields
Magnetic stars
Stars & galaxies
Stellar magnetic fields
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Summary:Discoveries of magnetic fields in pulsating B and Be stars have been claimed from low-resolution spectropolarimetric observations with FORS1 at VLT. We used the new generation of high-resolution spectropolarimeters, ESPaDOnS at CFHT and NARVAL at TBL, to check for the existence of these fields. We find that most of the claimed magnetic stars do not host a magnetic field. This work shows the importance of a critical analysis of FORS1 data when searching for weak magnetic fields in early-type stars and the advantage of using ESPaDOnS and NARVAL to study such type of stars.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921309030816