No weak magnetic field detected in the variable HgMn star α Andromedae

Details No weak magnetic field detected in the variable HgMn star α Andromedae No weak magnetic field detected in the variable HgMn star α Andromedae

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mast.conf..108w&link_type=abstract

Magnetic stars, Proceedings of the International Conference, held in the Special Astrophysical Observatory of the Russian AS, Au

Astronomy and Astrophysics

Astrophysics

2

Magnetic Fields, Α And

Scientific paper

High-S/N, phase-distributed circular polarisation spectra of the variable HgMn star α And provide no evidence of any photospheric magnetic field, with an upper limit for oblique dipolar fields of 280 G (approximately the equipartition field at log τ5000 = 0.0). We therefore propose that the variability of the Hg λ3984 line and the inferred nonuniform distribution of Hg (reported by Adelman et al. 2002) most plausibly result from a separation mechanism unrelated to the presence of a magnetic field.

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