The loss of large amplitude pulsations at the end of AGB evolution
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Published:2018-08
Issue:S343
Volume:14
Page:389-390
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ISSN:1743-9213
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Container-title:Proceedings of the International Astronomical Union
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language:en
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Short-container-title:Proc. IAU
Author:
Engels D.,Etoka S.,Gérard E.
Abstract
AbstractSince 2013, we are performing with the Nancay Radio Telescope (NRT) a monitoring program of > 100 Galactic disk OH/IR stars, having bright 1612-MHz OH maser emission. The variations of the maser emission are used to probe the underlying stellar variability. We wish to understand how the large-amplitude variations are lost during the AGB – post-AGB transition. The fading out of pulsations with steadily declining amplitudes seems to be a viable process.
Publisher
Cambridge University Press (CUP)
Subject
Astronomy and Astrophysics,Space and Planetary Science
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