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A polarization outburst in the T Tauri star UY Aurigae

Published online by Cambridge University Press:  04 August 2017

F. Ménard  and
P. Bastien
F. Ménard
Affiliation:
Département de Physique and Observatoire du mont Mégantic Université de Montréal, B.P. 6128, Succ. A, Montréal, Québec H3C 3J7 Canada
P. Bastien
Affiliation:
Département de Physique and Observatoire du mont Mégantic Université de Montréal, B.P. 6128, Succ. A, Montréal, Québec H3C 3J7 Canada

Extract

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During the course of a monitoring programme of the linear polarization of various T Tauri stars, UY Aur was observed to undergo a strong polarization burst between 1984 October and 1985 January. The linear polarization rised from about 1.5% early in 1984 to a maximum of 7.6% in 1984 October and declined back to the earlier value after 3 to 4 months. It is the first time that such a large increase in linear polarization is reported in a T Tauri star. However the interpretation is complicated by the fact that UY Aur is a visual binary with a separation of 0.8 and both components were included in the measurements.

Type
Bipolar Flows, Jets and Protostars
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 133 - 134
Copyright
Copyright © Reidel 1987 

References

Bastien, P., and Landstreet, J.D.: 1979, Astrophys. J. (Letters) 222, L137.CrossRefGoogle Scholar
Ménard, F.: 1986, M. Sc. Thesis, Univ. of Montréal. Google Scholar
Rydgren, A.E., and Vrba, F.J.: 1983, Astron. J. 88(7), 1017.CrossRefGoogle Scholar