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2017•Astronomy and AstrophysicsOpen access

The circumstellar envelope around the S-type AGB star W Aql

S. Ramstedt, S. Mohamed, W. H. T. Vlemmings, T. Danilovich, M. Brunner, E. De Beck, E. M. L. Humphreys, M. Lindqvist, M. Maercker, H. Olofsson, F. Kerschbaum, G. Quintana-Lacaci

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Abstract

Context. Recent observations at subarcsecond resolution, now possible also at submillimeter wavelengths, have shown intricate circumstellar structures around asymptotic giant branch (AGB) stars, mostly attributed to binary interaction. The results presented here are part of a larger project aimed at investigating the effects of a binary companion on the morphology of circumstellar envelopes (CSEs) of AGB stars.

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Context. Recent observations at subarcsecond resolution, now possible also at submillimeter wavelengths, have shown intricate circumstellar structures around asymptotic giant branch (AGB) stars, mostly attributed to binary interaction. The results presented here are part of a larger project aimed at investigating the effects of a binary companion on the morphology of circumstellar envelopes (CSEs) of AGB stars.

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Available abstract

Context. Recent observations at subarcsecond resolution, now possible also at submillimeter wavelengths, have shown intricate circumstellar structures around asymptotic giant branch (AGB) stars, mostly attributed to binary interaction. The results presented here are part of a larger project aimed at investigating the effects of a binary companion on the morphology of circumstellar envelopes (CSEs) of AGB stars.

Key concepts: Physics, Asymptotic giant branch, Astrophysics, Circumstellar envelope, Stars, Circumstellar dust, Context (archaeology), Astronomy

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