A continuous population of variable stars up to about 1.5 mag above the horizontal branch?
L. Baldacci, G. Clementini, E. V. Held, M. Marconi, L. Rizzi
Abstract
Increasing samples of pulsating variable stars populating the classical instability strip from the horizontal branch to a few magnitudes brighter are being found in several Local Group galaxies, irrespective of the galaxy morphological type. We will review the observational scenario focusing in particular on the Anomalous Cepheids and related objects.
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