On the α-element gradients of the Galactic thin disk using Cepheids

We present new homogeneous measurements of Na, Al, and three α-elements (Mg, Si, Ca) for 75 Galactic Cepheids. The abundances are based on high spectral resolution (R~ 38 000) and high signal-to-noise ratio (S/N ~ 50−300) spectra collected with UVES at ESO VLT. The current measurements were compleme...

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Veröffentlicht in:	Astronomy and astrophysics (Berlin) 2015-08, Vol.580, p.A17
Hauptverfasser:	Genovali, K., Lemasle, B., da Silva, R., Bono, G., Fabrizio, M., Bergemann, M., Buonanno, R., Ferraro, I., François, P., Iannicola, G., Inno, L., Laney, C. D., Kudritzki, R.-P., Matsunaga, N., Nonino, M., Primas, F., Romaniello, M., Urbaneja, M. A., Thévenin, F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics Galaxy: disk open clusters and associations: general Physics stars: abundances stars: oscillations stars: variables: Cepheids
Online-Zugang:	Volltext
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