Search and study of young infrared stellar clusters

Abstract

The main aim of this paper is to study both the Interstellar Medium (ISM) and the young stellar population in the three star-forming regions, namely IRAS 05137+3919, 05168+3634, and 19110+1045. The study of the ISM includes determination of the hydrogen column density (N(H_2)) and dust temperature (T_d) in the regions using Modified blackbody fitting. The main parameters of identified and classified young stellar objects (YSOs) belonging to the regions were determined comparing with the radiation transfer models. We also constructed a colour-magnitude diagram to compare the parameters of the YSOs with the results of the radiative transfer models. The three stellar populations appear to have formed under different scenarios. In the cases of IRAS 05137+3919 and IRAS 05168+3634, the age spread is considerably wider, suggesting that the stellar population likely emerged from independent condensations. In contrast, the third region comprises a pair of ultra-compact HII regions (UCHIIs), G45.12+0.13 and G45.07+0.13, with a notably smaller age spread. This hints at the possibility that these clusters originated from a single triggering event.

4 figures, 1 table

References in corpus (8)

• MAMBO Mapping of Spitzer c2d Small Clouds and Cores
• The UKIDSS Galactic Plane Survey
• A modular set of synthetic spectral energy distributions for young stellar objects
• Physical properties of the ambient medium and of dense cores in the Perseus star-forming region derived from Herschel Gould Belt Survey observations
• Trigonometric Parallaxes of Star Forming Regions Beyond the Tangent Point of the Sagittarius Spiral Arm
• Investigation of the stellar content in the IRAS 05168+3634 star-forming region
• Search for Compact Stellar Groups in the Vicinity of IRAS Sources
• Infrared study of the star-forming region associated with the UC HII regions G45.07+0.13 and G45.12+0.13