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Zooming into Eta Carinae with interferometry

Published online by Cambridge University Press:  23 January 2015

Jose H. Groh
Jose H. Groh*
Affiliation:
Geneva Observatory, Geneva University, Chemin des Maillettes 51, CH-1290 Sauverny, Switzerland email: [email protected]
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Abstract

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Shaped by strong mass loss, rapid rotation, and/or the presence of a close companion, the circumstellar environment around the most massive stars is complex and anything but spherical. Here we provide a brief overview of the high spatial resolution observations of Eta Carinae performed with the Very Large Telescope Interferometer (VLTI). Special emphasis is given to discuss VLTI/AMBER and VLTI/VINCI observations, which directly resolve spatial scales comparable to those where mass loss originates. Studying scales as small as a few milli-arcseconds allows us to investigate kinematical effects of rotation and binarity in more detail than ever before.

Keywords

stars: atmospheres stars: individual (Eta Carinae) stars: mass-loss stars: rotation stars: variables: general supergiants
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S307: New windows on massive stars: asteroseismology, interferometry, and spectropolarimetry , June 2014 , pp. 267 - 272
Copyright
Copyright © International Astronomical Union 2015 

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