The recent suggestions of significant helium enrichment in some globular clusters pointed out the usefulness of stellar tracks and isochrones covering an extended region of the Z-Y plane. New evolutionary models grids have been computed to allow people to model stellar populations for different helium enrichment laws. The extension of TP-AGB computations until the end of the thermal pulses by means of new synthetic models are relevant for stellar populations analyses in the near-infrared photometric bands.
New Padova Isochrones: extended Z-Y plane and updated AGB models
MARIGO, PAOLA
2008
Abstract
The recent suggestions of significant helium enrichment in some globular clusters pointed out the usefulness of stellar tracks and isochrones covering an extended region of the Z-Y plane. New evolutionary models grids have been computed to allow people to model stellar populations for different helium enrichment laws. The extension of TP-AGB computations until the end of the thermal pulses by means of new synthetic models are relevant for stellar populations analyses in the near-infrared photometric bands.
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