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Proceedings Paper

To be or not to be asymmetric? VLTI and the mass loss geometry of red giants
Author(s): Claudia Paladini; Daniela Klotz; Stephane Sacuto; Josef Hron; Markus Wittkowski; Eric Lagadec; Tijl Verhoelst; Alain Jorissen; Andrea Richichi; Martin Groenewegen; Hans Olofsson; Franz Kerschbaum
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Paper Abstract

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.

Paper Details

Date Published: 12 September 2012
PDF: 8 pages
Proc. SPIE 8445, Optical and Infrared Interferometry III, 84451R (12 September 2012); doi: 10.1117/12.926380
Show Author Affiliations
Claudia Paladini, Univ. of Vienna (Austria)
Daniela Klotz, Univ. of Vienna (Austria)
Stephane Sacuto, Univ. of Uppsala (Sweden)
Josef Hron, Univ. of Vienna (Austria)
Markus Wittkowski, European Southern Observatory (Germany)
Eric Lagadec, European Southern Observatory (Germany)
Tijl Verhoelst, Belgian Institute for Space Aeronomy (Belgium)
Alain Jorissen, Univ. Libre de Bruxelles (Belgium)
Andrea Richichi, National Astronomical Institute of Thailand (Thailand)
Martin Groenewegen, Koninklijke Sterrenwacht van België (Belgium)
Hans Olofsson, Onsala Space Observatory, Chalmers Univ. of Technology (Sweden)
Franz Kerschbaum, Univ. of Vienna (Austria)

Published in SPIE Proceedings Vol. 8445:
Optical and Infrared Interferometry III
Françoise Delplancke; Jayadev K. Rajagopal; Fabien Malbet, Editor(s)

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