• DOI:10.1051/0004-6361/201117573
Corpus ID: 119106028

Detection of a weak surface magnetic field on Sirius A: are all tepid stars magnetic?

@article{Petit2011DetectionOA,
  title={Detection of a weak surface magnetic field on Sirius A: are all tepid stars magnetic?},
  author={P. Petit and F. Ligni{\`e}res and M. Auri{\`e}re and G. Wade and D. Alina and J. Ballot and T. Bohm and L. Jouve and A. Oza and F. Paletou and S. Th'eado},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={532}
}

P. Petit, F. Lignières, +8 authors S. Th'eado

Published 2011

Physics

Astronomy and Astrophysics

Aims. We aim at a highly sensitive search for weak magnetic fields in main sequence stars of intermediate mass, by scanning classes of stars with no previously reported magnetic members. After detecting a weak magnetic field on the normal, rapidly rotating A-type star Vega, we concentrate here on the bright star Sirius A, taken as a prototypical, chemically peculiar, moderately rotating Am star. Methods. We employed the NARVAL and ESPaDOnS high-resolution spectropolarimeters to collect 442… CONTINUE READING

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