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The Outflows of Binary AGB Stars
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Astrophysics.
Chalmers, Dept Earth & Space Sci, Onsala, Sweden..
South African Astron Observ, Cape Town, South Africa..
2015 (English)In: Revolution in Astronomy with ALMA: The Third Year, 2015, Vol. 499, 331-334 p.Conference paper, Published paper (Refereed)
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Text
Abstract [en]

The required conditions for stars to evolve into planetary nebulae (PNs) continues to puzzle. Since PNs are found in a wide variety of shapes, processes that could sculpt circumstellar envelopes (CSEs) are being investigated. A binary companion will have a strong gravitational effect, but known binary AGB stars are rare. Using ALMA in Cycle 1 and 2, we have observed a small sample of well-studied, binary AGB stars, covering a decisive range in separation, in order to determine the influence of a companion on the circumstellar morphology of the AGB primary. The first steps toward interpreting and analyzing the data have been taken, and the results will be compared to 3D Smoothed Particle Hydrodynamics (SPH) models of the gravitational interaction.

Place, publisher, year, edition, pages
2015. Vol. 499, 331-334 p.
Series
Astronomical Society of the Pacific Conference Series
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-282749ISI: 000369469500111ISBN: 978-1-58381-883-1 (print)ISBN: 978-1-58381-882-4 (print)OAI: oai:DiVA.org:uu-282749DiVA: diva2:940037
Conference
4th ALMA Science Conference on Revolution in Astronomy with ALMA: The Third Year, DEC 08-11, 2014, Tokyo, JAPAN
Available from: 2016-06-20 Created: 2016-04-06 Last updated: 2016-06-20Bibliographically approved

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