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To be or not to be asymmetric? VLTI and the mass loss geometry of red giants

Paladini, C. (author)
Universität Wien,University of Vienna
Klotz, D. (author)
Universität Wien,University of Vienna
Sacuto, S. (author)
Uppsala universitet,Teoretisk astrofysik,Uppsala University
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Hron, J. (author)
Universität Wien,University of Vienna
Wittkowski, M. (author)
European Southern Observatory (ESO)
Lagadec, E. (author)
European Southern Observatory (ESO)
Verhoelst, T. (author)
Belgian Institute for Space Aeronomy (BIRA-IASB)
Jorissen, A. (author)
Université libre de Bruxelles (ULB)
Richichi, A. (author)
National Astronomical Research Institute of Thailand
Groenewegen, M. A. T. (author)
Royal Observatory of Belgium
Olofsson, Hans, 1952 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Kerschbaum, F. (author)
Universität Wien,University of Vienna
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 (creator_code:org_t)
ISBN 9780819491466
SPIE, 2012
2012
English.
In: Proceedings of SPIE - The International Society for Optical Engineering. - : SPIE. - 0277-786X .- 1996-756X. - 9780819491466 ; 8445, s. Art. no. 84451R-
  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • The mass-loss process is a key ingredient for our understanding in many fields of astrophysics, including stellar evolution and the enrichment of the interstellar medium (ISM) via stellar yields. We combined the capability of the VLTI/MIDI and VLT/VISIR instruments with very recent Herschel/PACS observations to characterize the geometry of mass loss from evolved red giants on the Asymptotic Giant Branch (AGB) at various scales. This paper describes the sample of objects, the observing strategy, the tool for the interpretation, and preliminary MIDI results for two targets: U Ant and θ Aps.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

Herschel
Imaging
Stellar atmospheres
Optical interferometry
Infrared
Mass-loss
Late-type stars

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kon (subject category)
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