An Investigation of 11 previously unstudied open star clusters

TL;DR

This study derives fundamental astrophysical parameters for 11 previously unstudied open star clusters using near-infrared photometry and proper motion data, providing new insights into their properties.

Contribution

It is the first to determine centers, diameters, ages, distances, and reddening for these 11 star clusters, expanding knowledge of their characteristics.

Findings

New cluster centers and diameters established.

Ages, distances, and reddening parameters estimated for the first time.

Clusters' fundamental properties are now characterized.

Abstract

The main astrophysical properties of 11 previously unstudied open star clusters are probed with JHK Near-IR (2MASS) photometry of Cutri et al. [Cutri, R., et al., 2003. The IRSA 2MASS All-sky Point Source Catalog, NASA/IPAC Infrared Science Archive] and proper motions (NOMAD) astrometry of Zacharias et al. [Zacharias, N., Monet, D., Levine, S., Urban, S., Gaume, R., Wycoff, G., 2004. American Astro. Soc. Meeting 36, 1418]. The fundamental parameters have been derived for IC (1434, 2156); King (17, 18, 20, 23, 26)}; and Dias (2, 3, 4, 7, 8)}, for which no prior parameters are available in the literature. The clusters' centers coordinates and angular diameters are re-determined, while ages, distances, and color excesses for these clusters are estimated here for the first time.