Mid-infrared studies of Carinae-II. Polarimetric imaging at 12.5 m and the magnetic field structure
Open Access
- 15 March 1995
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 273 (2) , 359-366
- https://doi.org/10.1093/mnras/273.2.359
Abstract
Subarcsecond imaging polarimetry of η Carinae in the mid-infrared has revealed organized grain alignment within the shells which define the homunculus. The grain alignment is discussed in terms of the combined effect of radiation-driven streaming of grains through gas and a swept-up magnetic field. It is proposed that the present structure of η Carinae is the result of an outburst from within a dense, magnetized disc which may be a relic of an earlier collapse phase.Keywords
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