Photometric and Kinematic Studies of Open Star Clusters I: NGC 581 (M 103)

(2) Thueringer Landessternwarte Tautenburg; (3) Astrophysikalisches Institut Potsdam); Jens Brunzendorf (2); Joerg Sanner (1); Juergen Schmoll (3) ((1) Sternwarte der Universitaet Bonn; Michael Geffert (1)

arxiv: astro-ph/9908059 · v1 · submitted 1999-08-06 · 🌌 astro-ph

Photometric and Kinematic Studies of Open Star Clusters I: NGC 581 (M 103)

Joerg Sanner (1) , Michael Geffert (1) , Jens Brunzendorf (2) , Juergen Schmoll (3) ((1) Sternwarte der Universitaet Bonn , (2) Thueringer Landessternwarte Tautenburg , (3) Astrophysikalisches Institut Potsdam) This is my paper

classification 🌌 astro-ph

keywords clusterproperstarmotionopenbrighterclusterscolour

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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 +/- 4 Myr and a distance of roughly 3 kpc for this cluster. The proper motion study identifies 77 stars of V=14.5 mag 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 Gamma=-1.80.

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Photometric and Kinematic Studies of Open Star Clusters I: NGC 581 (M 103)

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