2012/01/09 by W. S. Dias, H. Monteiro, T. C. Caetano +3 · 1 citation
Physics and Astronomy · #Stellar, planetary, and galactic studies #Gamma-ray bursts and supernovae #Astrophysics and Star Formation Studies
paper · pdf · doi:10.1051/0004-6361/201118206
Aims. Open clusters are essential tools for understanding Galactic structure, as well as stellar evolution, because they are distributed over the whole Galactic plane, and because their ages, distances, and reddening can be determined. The values of derived cluster fundamental parameters can vary greatly because of the often subjective nature of both the isochrone fitting technique and member star selection. To minimize the subjectivity in the selection of stars and to improve the fitting procedure, our group has developed a nonparametric method that estimates the membership likelihood for apparent cluster stars.