Open star clusters. I. NGC 581 (M 103) (Sanner+, 1999)

Details Open star clusters. I. NGC 581 (M 103) (Sanner+, 1999) Open star clusters. I. NGC 581 (M 103) (Sanner+, 1999)

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ycat..33490448s&link_type=abstract

VizieR On-line Data Catalog: J/A+A/349/448. Originally published in: 1999A&A...349..448S

Physics

Clusters: Open, Photometry: Ccd, Photometry: Ubv, Proper Motions

Scientific paper

We present CCD photometry and a proper motion study of the young open star cluster, NGC 581 (M 103). Fitting isochrones to the colour magnitude diagram, we found an age of 16+/-4Myr and a distance of roughly 3kpc for this cluster. The proper motion study identifies 77 stars of V=14.5mag or brighter to be cluster members. We combine membership determination by proper motions and statistical field star subtraction to derive the IMF of the cluster and find a quite steep slope of Γ=-1.80. (2 data files).

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