On the use of field RR Lyrae as Galactic probes: I. The Oosterhoff dichotomy based on fundamental variables

@inproceedings{MFabrizio2019OnTU,
  title={On the use of field RR Lyrae as Galactic probes: I. The Oosterhoff dichotomy based on fundamental variables},
  author={M.Fabrizio and G.Bono and V.F.Braga and D.Magurno and S.Marinoni and P.M.Marrese and I.Ferraro and G.Fiorentino and G.Giuffrida and G.Iannicola and M.Monelli and G.Altavilla and B.Chaboyer and M.Dall'Ora and C.K.Gilligan and A.Layden and M.Marengo and M.Nonino and G.W.Preston and B.Sesar and C.Sneden and E.Valenti and F.Th'evenin and E.Zoccali},
  year={2019}
}
  • M.Fabrizio, G.Bono, +21 authors E.Zoccali
  • Published 2019
  • Physics
  • We collected a large data set of field RR Lyrae stars (RRLs) by using catalogues already available in the literature and Gaia DR2. We estimated the iron abundances for a sub-sample of 2,382 fundamental RRLs (∆S method: Ca II K, Hβ, Hγ and Hδ lines) for which are publicly available medium-resolution SDSS-SEGUE spectra. We also included similar estimates available in the literature ending up with the largest and most homogeneous spectroscopic data set ever collected for RRLs (2,903). The… CONTINUE READING

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    The Evolution of Population II Stars
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