Mass Function at the end of the Main Sequence: the M35 Open Cluster
Abstract
We present very deep RIc photometry of the M35 open cluster. We have covered 30' × 30', equivalent to about a fourth of the total area of the cluster. The data range from Ic=17.5 to 23.5 magnitudes, and the color interval is 0.5 (R-I)c 2.5. Roughly, these values correspond from 0.6 M to 0.1 M in the cases of members of the cluster. By using the location of the stars on a Color-Magnitude Diagram, we have selected possible members of this cluster and obtained the Luminosity and Mass Functions of the M35 open cluster and compared them with those from the Pleiades.
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