Evidence for strong magnetic fields in the inner envelopes of late-type stars

Details Evidence for strong magnetic fields in the inner envelopes of late-type stars Evidence for strong magnetic fields in the inner envelopes of late-type stars

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987natur.329..613b&link_type=abstract

Nature (ISSN 0028-0836), vol. 329, Oct. 15, 1987, p. 613-615.

Physics

73

Circular Polarization, Interstellar Masers, Late Stars, Stellar Envelopes, Stellar Magnetic Fields, Variable Stars, Polarimetry, Silicon Oxides, Stellar Evolution, Supergiant Stars

Scientific paper

The authors report sensitive measurements of circular polarization in SiO masers associated with late-type stars, which reveal significantly polarized features at the several per cent level in five of six stars observed. Under the Zeeman splitting hypothesis, these measurements imply magnetic fields in the masing gas in the range 10 - 100 G. The masers associated with IRc 2 in the Orion-KL region were not detected in circular polarization.

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