Classical Cepheids as tracers of the disk abundance gradient
Silvia Pedicelli
Broschiertes Buch

Classical Cepheids as tracers of the disk abundance gradient

Classical Cepheids are something more then distance indicators

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Classical Cepheids are the most popular primary distance indicator. They obey to well defined optical and near-infrared (NIR) Period-Luminosity (PL) relations and their distances can be estimated with an accuracy of a few percent. They also are, the best tracers of intermediate-mass stars. In particular, since they are distributed across the Galactic disk they can be adopted to trace the iron and heavy element radial gradients. In the past few years, significant progress has been made to understand and characterize the influence that chemical composition may have on the Cepheids Period-Luminos...