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Asymmetries around Luminous Red Variables

Published online by Cambridge University Press:  25 May 2016

Antonio Mário Magalhães  and
Kenneth H. Nordsieck
Antonio Mário Magalhães
Affiliation:
Instituto Astronômico e Geofísico, Universidade de São Paulo, São Paulo, Brazil
Kenneth H. Nordsieck
Affiliation:
Space Astronomy Laboratory, University of Wisconsin, Madison, WI 53706, U.S.A.

Abstract

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Departures from spherical symmetry are known to exist around Luminous Red Variables (LRVs). One of the earliest pieces of evidence came from the discovery that light from these objects is polarized. Additional evidence comes from other techniques and observations of related objects. This talk briefly reviews these data and focuses on the mechanisms that produce polarization in LRVs. Emphasis is given on recent spectropolarimetric monitoring data of selected key objects and what we have learned about the LRV environment from such data.

Type
Session IX — Circumstellar Emission and Environment
Information
Symposium - International Astronomical Union , Volume 177: The Carbon Star Phenomenon , 2000 , pp. 433 - 440
Copyright
Copyright © Kluwer 2000 

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