Effects of moderate abundance changes on the atmospheric structure and colours of Mira variables: research note
<i>Aims. <i/>We study the effects of moderate deviations from solar abundances upon the atmospheric structure and colours of typical Mira variables.<i>Methods. <i/>We present two model series of dynamical opacity-sampling models of Mira variables which have (1) 1/3 solar meta...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
21 May 2014
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| In: |
Astronomy and astrophysics
Year: 2014, Jahrgang: 565 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/201323183 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1051/0004-6361/201323183 Verlag, lizenzpflichtig, Volltext: https://www.aanda.org/articles/aa/abs/2014/05/aa23183-13/aa23183-13.html 
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| Verfasserangaben: | M. Scholz, M.J. Ireland, and P.R. Wood |
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| 245 | 1 | 0 | |a Effects of moderate abundance changes on the atmospheric structure and colours of Mira variables |b research note |c M. Scholz, M.J. Ireland, and P.R. Wood |
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| 520 | |a <i>Aims. <i/>We study the effects of moderate deviations from solar abundances upon the atmospheric structure and colours of typical Mira variables.<i>Methods. <i/>We present two model series of dynamical opacity-sampling models of Mira variables which have (1) 1/3 solar metallicity; and (2) “mild” S-type C/O abundance ratio ([C/O] = 0.9) with typical Zr enhancement (solar +1.0). These series are compared to a previously studied solar-abundance series which has similar fundamental parameters (mass, luminosity, period, radius) that are close to those of <i>o<i/> Cet.<i>Results. <i/>Both series show noticeable effects of abundance upon stratifications and infrared colours but cycle-to-cycle differences mask these effects at most pulsation phases, with the exception of a narrow-water-filter colour near minimum phase. | ||
| 700 | 1 | |a Ireland, Michael J. |e VerfasserIn |0 (DE-588)1216595836 |0 (DE-627)1727838424 |4 aut | |
| 700 | 1 | |a Wood, Peter R. |e VerfasserIn |0 (DE-588)1216596387 |0 (DE-627)1727839358 |4 aut | |
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