Fitting Isochrones to Open Cluster photometric data: A new global optimization tool

We present a new technique to fit color-magnitude diagrams of open clusters based on the Cross-Entropy global optimization algorithm. The method uses theoretical isochrones available in the literature and maximizes a weighted likelihood function based on distances measured in the color-magnitude spa...

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Veröffentlicht in:	arXiv.org 2010-03
Hauptverfasser:	Monteiro, H, Dias, W S, Caetano, T C
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Binary stars Color Color-magnitude diagram Entropy (Information theory) Global optimization Metallicity Monte Carlo simulation Open clusters Parameter uncertainty Photometry Physics - Astrophysics of Galaxies Physics - Instrumentation and Methods for Astrophysics Star clusters
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