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Paper: Using Polarization to Study the Winds of Massive Stars
Volume: 388, Mass Loss from Stars and the Evolution of Stellar Clusters
Page: 71
Authors: Davies, B.; Vink, J.; Oudmaijer, R.
Abstract: The topic of wind-clumping has been the subject of much activity in recent years, due to the impact that it can have on derived mass-loss rates. Here we present an alternative method of investigating wind-clumping, that of polarimetry. We present simulations of the polarization produced by a clumpy wind, and argue that the observations may be reproduced just by statistical deviations from spherical symmetry when the outflow is only slightly fragmented. Here, the polarization scales with dM/dt , which is consistent with observations of LBVs, WRs and O supergiants.
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