We supplement current evolutionary computations concerning Magellanic Cloud stars by exploring the evolutionary behavior of canonical stellar models ( i. e., with inefficient core overshooting) with metallicities suitable for stars in the Clouds. After discussing the adequacy of the adopted evolutionary scenario, we present evolutionary sequences as computed following a selected sample of stellar models in the mass range 0 : 8 divided by 8 M . from the Main Sequence till the C ignition or the onset of thermal pulses in the advanced Asymptotic Giant Branch phase. On this basis, cluster isochrones covering the range of ages from similar to 100 Myr to similar to 15 Gyr are presented and discussed. To allow a comparison with evolutionary investigations appeared in the recent literature, we computed additional sets of models which take into account moderate core overshooting during the H burning phase, discussing the comparison in terms of current uncertainties in the stellar evolutionary models. Selected predictions constraining the cluster ages are finally discussed, presenting a calibration of the difference in magnitude between the luminous MS termination and the He burning giants in terms of cluster age. Both evolutionary tracks and isochrones have been made available at the node h t t p : / / g i p s y. c j b. n e t as a first step of a planned " Pisa Evolutionary Library".
|Autori interni:||DEGL'INNOCENTI, SCILLA|
PRADA MORONI, PIER GIORGIO
|Autori:||Castellani V; Degl'Innocenti S; Marconi M; Prada Moroni P; Sestito P|
|Titolo:||Stellar evolutionary models for Magellanic Clouds|
|Anno del prodotto:||2003|
|Digital Object Identifier (DOI):||10.1051/0004-6361:20030540|
|Appare nelle tipologie:||1.1 Articolo in rivista|