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VLTI-GRAVITY measurements of cool evolved stars: I. Variable photosphere and extended atmosphere of the Mira star R Peg

Dynamic model atmospheres of Mira stars predict variabilities in the photospheric radius and in atmospheric molecular layers which are not yet strongly constrained by observations. Here we measure the variability of the oxygen-rich Mira star R Peg in near-continuum and molecular bands.

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Bibliographic Details
Main Authors: Wittkowski, Markus (Author) , Rau, G. (Author) , Chiavassa, A. (Author) , Höfner, S. (Author) , Scholz, Michael (Author) , Wood, P. R. (Author) , Wit, W. J. de (Author) , Eisenhauer, F. (Author) , Haubois, X. (Author) , Paumard, T. (Author)
Format: Article (Journal) Editorial
Language:English
Published: 01 June 2018
In: Astronomy and astrophysics
Year: 2018, Volume: 613
ISSN:1432-0746
DOI:10.1051/0004-6361/201833029
Online Access:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1051/0004-6361/201833029
Verlag, lizenzpflichtig, Volltext: https://www.aanda.org/articles/aa/abs/2018/05/aa33029-18/aa33029-18.html
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Author Notes:M. Wittkowski, G. Rau, A. Chiavassa, S. Höfner, M. Scholz, P.R. Wood, W.J. de Wit, F. Eisenhauer, X. Haubois, T. Paumard
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Summary:Dynamic model atmospheres of Mira stars predict variabilities in the photospheric radius and in atmospheric molecular layers which are not yet strongly constrained by observations. Here we measure the variability of the oxygen-rich Mira star R Peg in near-continuum and molecular bands.
Item Description:Gesehen am 23.04.2020
Physical Description:Online Resource
ISSN:1432-0746
DOI:10.1051/0004-6361/201833029

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