Investigando la zona de los cúmulos inmersos DBS 114-115-117

Abstract

A preliminary study of the stellar population has been carried out in the area of the immersed clusters DBS 114, 115 and 117. The information provided by various astronomical databases and data available in the literature has been used. Photometric data in the optical (VPHAS +, GAIA), near infrared (2MASS-VVV) and mid infrared (WISE) has been included and correlated, together with astrometric data (GAIA). In addition, spectroscopic observations have been made in the K band of selected stars. This study has made it possible to identify different types of sources: early type stars, objects with excesses in the K band and young stellar objects. These objects have led to the estimation of the characteristic parameters of the clusters involved. In particular, a consistency has been found between the spectrophotometric and trigonometric distance values, although considering a slightly abnormal reddening law. Evidence of a sequential star formation process has also been revealed.