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/1O double-mode Cepheids listed in the Gaia Data Release 2 (DR2) catalog to derive the metallicity gradient in the Milky Way disk. Methods. The metallicity is derived from the ratio of the first overtone and fundamental periods provided by Gaia DR2 while the Gaia DR2 parallaxes are used to determine the Galactocentric distances of the stars. Results. From a visual inspection of the light curves, it turns out that a large fraction (77%) of the Galact...
Context. Classical Cepheids (DCEPs) are the most important primary indicators for the extragalactic ...
Based on spectra obtained at the Anglo-Australian Observatory, we present a discussion of the metall...
This paper reports on the spectroscopic investigation of 12 Cepheids which are situated in the cruci...
Context. The ratio of the first overtone (1O)/fundamental (F) periods of mixed-mode Cepheids that pu...
Context. The ratio of the first overtone (1O)/fundamental (F) periods of mixed-mode Cepheids that pu...
Context. Classical Cepheids (DCEPs) represent a fundamental tool to calibrate the extragalactic dist...
International audienceContext. Classical Cepheids (DCEPs) represent a fundamental tool to calibrate ...
International audienceAims: The iron abundance gradient in the Galactic stellar disk provides fundam...
We present homogeneous and accurate iron abundances for 42 Galactic Cepheids based on high...
We present homogeneous and accurate iron abundances for 42 Galactic Cepheids based on high resolutio...
Metallicity gradients refer to the sloped radial profiles of the metallicities of gas and stars and ...
Context. Classical Cepheids are the most popular distance indicators and tracers of young stellar po...
Context. Galactic abundance gradients set strong constraints to chemo-dynamical evolutionary models ...
Context. Classical Cepheids (DCEPs) are the most important primary indicators for the extragalactic ...
Based on spectra obtained at the Anglo-Australian Observatory, we present a discussion of the metall...
This paper reports on the spectroscopic investigation of 12 Cepheids which are situated in the cruci...
Context. The ratio of the first overtone (1O)/fundamental (F) periods of mixed-mode Cepheids that pu...
Context. The ratio of the first overtone (1O)/fundamental (F) periods of mixed-mode Cepheids that pu...
Context. Classical Cepheids (DCEPs) represent a fundamental tool to calibrate the extragalactic dist...
International audienceContext. Classical Cepheids (DCEPs) represent a fundamental tool to calibrate ...
International audienceAims: The iron abundance gradient in the Galactic stellar disk provides fundam...
We present homogeneous and accurate iron abundances for 42 Galactic Cepheids based on high...
We present homogeneous and accurate iron abundances for 42 Galactic Cepheids based on high resolutio...
Metallicity gradients refer to the sloped radial profiles of the metallicities of gas and stars and ...
Context. Classical Cepheids are the most popular distance indicators and tracers of young stellar po...
Context. Galactic abundance gradients set strong constraints to chemo-dynamical evolutionary models ...
Context. Classical Cepheids (DCEPs) are the most important primary indicators for the extragalactic ...
Based on spectra obtained at the Anglo-Australian Observatory, we present a discussion of the metall...
This paper reports on the spectroscopic investigation of 12 Cepheids which are situated in the cruci...