Methods for improving open cluster fundamental parameters applied to M 52 and NGC 3960

Bonatto, Charles Jose
Bica, Eduardo Luiz Damiani

Publication date

January 2014

Abstract

Aims. We derive accurate parameters related to the CMD, structure and dynamical state of M52 and NGC3960, whose fields are affected by differential reddening. Previous works estimated their ages in the ranges 35−135 Myr and 0.5−1.0 Gyr, respectively. Methods. J, H and Ks 2MASS photometry with errors <0.2 mag is used to build CMDs, radial density profiles, luminosity and mass functions, and correct for differential reddening. Field-star decontamination is applied to uncover the cluster’s intrinsic CMD morphology, and colour–magnitude filters are used to isolate stars with high probability of being cluster members. Results. The differential-reddening corrected radial density profile of M52 follows King’s law with core and limiting radii of Rc...

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Methods for improving open cluster fundamental parameters applied to M 52 and NGC 3960

Abstract

Extracted data

Methods for improving open cluster fundamental parameters applied to M 52 and NGC 3960

Abstract

Extracted data

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