Spatial Age Distribution of Classical Cepheids in Spiral Galaxies: the Cases of M31 and M33

Giulia De Somma,Marcella Marconi, Vincenzo Ripepi,Santi Cassisi, Roberto Molinaro,Ilaria Musella, Teresa Sicignano, Erasmo Trentin

The Astrophysical Journal Letters（2025）

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Cepheid variable stars,Spiral galaxies,Andromeda Galaxy,Triangulum Galaxy,Stellar evolution,Stellar pulsations

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