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Context. The ratio of the first overtone (1O)/fundamental (F) periods of mixed-mode Cepheids that pulsate simultaneously in these two modes (F/1O) is metallicity-dependent. It can therefore be used to characterize the systems that host such variable stars. Aims. We want to take advantage of the F...


Lemasle, B.Hajdu, G.Kovtyukh, V.Inno, L.Grebel, E.K.Catelan, M.Bono, G.François, P.Kniazev, A.Da Silva, R.Storm, J.[Milky Way metallicity gradient from Gaia DR2 F/1O double-mode Cepheids]Milky Way metallicity gradient from Gaia DR2 F/1O double-mode Cepheids

Braga, V.F.Stetson, P.B.Bono, G.Dall'Ora, M.Ferraro, I.Fiorentino, G.Iannicola, G.Marconi, M.Marengo, M.Monson, A.J.Neeley, J.Persson, S.E.Beaton, R.L.Buonanno, R.Calamida, A.Castellani, M.Carlo, E.D.Fabrizio, M.Freedman, W.L.Inno, L.Madore, B.F.Magurno, D.Marchetti, E.Marinoni, S.Marrese, P.Matsunaga, N.Minniti, D.Monelli, M.Nonino, M.Piersimoni, A.M.Pietrinferni, A.Prada-Moroni, P.Pulone, L.Stellingwerf, R.Tognelli, E.Walker, A.R.Valenti, E.Zoccali, M.[On the RR Lyrae Stars in Globulars. V. the Complete Near-infrared (JHK s) Census of ω Centauri RR Lyrae Variables]On the RR Lyrae Stars in Globulars. V. the Complete Near-infrared (JHK s) Census of ω Centauri RR Lyrae Variables

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