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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| Veröffentlicht in: | IAU Symposium 2008-11, Vol.4 (S259), p.391-392 |
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| container_issue | S259 |
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| creator | Silvester, James Neiner, C. Henrichs, H. F. Wade, G. A. Alecian, E. Petit, V. |
| description | 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. |
| doi_str_mv | 10.1017/S1743921309030816 |
| format | Article |
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| language | eng |
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| source | Cambridge University Press Journals Complete |
| subjects | Astronomy Astrophysics B stars Contributed Papers Data search Magnetic fields Magnetic stars Physics Stars & galaxies Stellar magnetic fields |
| title | Magnetic observations of pulsating B and Be stars with ESPaDOnS and Narval |
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