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Paper: A Population Synthesis Study of the White Dwarf Cooling Sequence of 47 Tucanae
Volume: 493, 19th European Workshop on White Dwarfs
Page: 379
Authors: Torres, S.; García–Berro, E.; Althaus, L. G.; Miller Bertolami, M. M.
Abstract: We present a population synthesis study of the cooling sequence of the globular cluster 47 Tucanae. We study the distribution of effective temperatures, the morphology of the color-magnitude diagram, and the magnitude and color distributions. We find that our simulations are in very good agreement with the observational data, once all the observational biases are taken into account. Our study also rules out previous claims that there are still missing physics in the white dwarf cooling models at moderately high effective temperatures. We also fit the age of the cluster using the termination of the cooling sequence, finding an age consistent with that determined using the main-sequence turn-off. Finally, we also investigate the star formation history of the cluster, finding that is compatible with that obtained using main sequence stars.
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