Chemical abundances of solar neighbourhood RR Lyrae stars

We have analysed a sample of 18 RR Lyrae stars (17 fundamental-mode -- RRab -- and one first overtone -- RRc) and three Population II Cepheids (two BL Her stars and one W Vir star), for which high-resolution (R greater than or equal to 30 000), high signal-to-noise (S/N greater than or equal to 30)...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2015-03, Vol.447 (3), p.2404-2404
Hauptverfasser:	Pancino, E, Britavskiy, N, Romano, D, Cacciari, C, Mucciarelli, A, Clementini, G
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics Chromium Covering Iron Mathematical models Phases Pulsars Signal to noise ratio Silicon Spectrum analysis Star & galaxy formation Stars Static models Telescopes
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