Protostars and Planets VI, Heidelberg, July 15-20, 2013

Poster 1K087

STUDY OF INTERMEDIATE AGE (~10-30 MYR) OPEN CLUSTERS

Olguin, Lorenzo (Departamento de Investigacion en Fisica, Universidad de Sonora, Mexico)
Michel, Raul (Instituto de Astronomia - Ensenada, Universidad Nacional Autonoma de Mexico, Mexico)
Contreras, Maria (Instituto de Astronomia - Ensenada, Universidad Nacional Autonoma de Mexico, Mexico)
Hernandez, Jesus (Centro de Investigaciones de Astronomia, Venezuela)
Schuster, William (Instituto de Astronomia - Ensenada, Universidad Nacional Autonoma de Mexico, Mexico)
Chavarria-Kleinhenn, Carlos (Instituto de Astronomia - Ensenada, Universidad Nacional Autonoma de Mexico, Mexico)

Abstract:
We present the study of a sample of intermediate age open clusters (age ~ 10-30 Myr) using optical (UBVRI) and infrared photometric data. Optical photometry was obtained as part of the San Pedro Martir Open Clusters Project (SPM-OCP, Schuster et al. 2007; Michel et al. 2013). Infrared photometry was retrieved from 2MASS public data archive and WISE database. Open clusters included in the SPM-OCP were selected from catalogues presented by Dias et al. (2002) and Froebrich, Scholz & Raftery (2007). One of the main goals of the SPM-OCP is to compile a self-consistent and homogeneous set of cluster fundamental parameters such as reddening, distance, age, and metallicity whenever possible. In this work, we have analyzed a set of 25 clusters from the SPM-OCP with estimated ages between 10 and 30 Myr. Derived fundamental parameters for each cluster in the sample as well as an example of typical color-color and color-magnitude diagrams are presented. Kinematic membership was established by using proper motion data taken from the literature. Based on infrared photometry, we have searched for candidate stars to posses a circumstellar disk within each clusters. For those selected candidates a follow-up spectroscpic study is being carried out. This work was partially supported by UNAM-PAPIIT grant IN-109311.

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