Classification of young stellar objects by CCD’s and SED’s

Abstract

The purpose of this study was to classify 19 Infrared Astronomical Satellite (IRAS) sources located in Cepheus molecular cloud. We have taken these sources because all have an CO outflow emission, which is an important tracer of star-formation process. We have obtained the flux of these protostars from the IRAS, Spitzer, WISE and 2MASS catalogs at far, medium and near infrared wavelenghts (FIR, MIR, NIR) to compute: color-color diagrams (CCD’s) according to determine the evolutionary Class at which the IRAS sources belong to, and the spectral distribution of energy (SED) with the aim of check and complete the previous classification. We found 13 sources belonging to Class 0, 3 to Class I, 3 to Class 0/I and none of Class II and III