uvby — β Photoelectric photometry and membership determination of the open cluster NGC 2353¹

 

J. Segura,² A. Juárez,³ and J. H. Peña⁴

 

² Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Coahuila, C.P. 25280, Saltillo, Coahuila, Mexico. (juan segura@uadec.edu.mx).

³ Instituto de Astronomía, Universidad Nacional Autónoma de México, Apdo. Postal 70-264, México, D.F. Mexico. (jhpena@astro.unam.mx).

⁴ Instituto de Educación Media Superior José María Morelos y Pavón, Canal de Chalco esq. Piraña, Col. del Mar, C.P.13270, México, D.F., Mexico. (alfre jviems@live.com.mx).

 

Received 2012 December 6.
Accepted 2013 October 7.

 

RESUMEN

A partir de fotometría fotoeléctrica uvby—β del cúmulo abierto NGC 2353 (55 estrellas) realizamos la determinación de distancias y, por ende, la pertenencia de las estrellas al cúmulo. Asimismo, se determinaron la edad y el enrojecimiento de éste.

 

ABSTRACT

From uvby—β photoelectric photometry oftheopencluster NGC 2353(55 stars) we were able to determine membership of the stars to the cluster and fix its age and reddening.

Key Words: open cluster and associations: individual (NGC 2353) —techniques: photometric.

 

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ACKNOWLEDGMENTS

We would like to thank the staff of the OAN and L. Parrao for their assistance in securing the observations. This work was partially supported by PAPIIT IN104612 and PAPIME PE103112. AJ and JS thank the IA-UNAM for the opportunity to carry out the observations. This work will be presented as part of the MSc degree requirements at the Instituto de Astronomía. Typing and proofreading were done by J. Orta, and J. Miller, respectively. C. Guzmán, F. Ruiz and A. Diaz assisted us in computing. This research has made use of the Simbad databases operated at CDS, Strasbourg, France and NASA ADS Astronomy Query Form.

 

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Nota

¹ Based on observations collected at the San Pedro Mártir Observatory, Mexico.