In this work, preliminary results corresponding to a region of the Galaxy close to the direction of the Carina arm are presented. The study was based on deep homogeneous photometric data ( ), obtained in the Inter-American Observatory Cerro Tololo. Data was complemented with 2MASS catalog infrared data, spectral classification of literature and own spectroscopic observations using Gemini. From our photometric analysis of the stars in the area, we could identify three stellar populations. Two of them are linked with young open clusters and the third one is characterized by a consistent set of objects with highly reddened early stars. The spectral types determined, for a sample of these stars, allowed us to confirm this hypothesis, since in all cases they were identified as massive OB type stars.

Poblaciones estelares en una región de Carina: detección de estrellas masivas altamente enrojecidas

CARRARO, GIOVANNI;
2016

Abstract

In this work, preliminary results corresponding to a region of the Galaxy close to the direction of the Carina arm are presented. The study was based on deep homogeneous photometric data ( ), obtained in the Inter-American Observatory Cerro Tololo. Data was complemented with 2MASS catalog infrared data, spectral classification of literature and own spectroscopic observations using Gemini. From our photometric analysis of the stars in the area, we could identify three stellar populations. Two of them are linked with young open clusters and the third one is characterized by a consistent set of objects with highly reddened early stars. The spectral types determined, for a sample of these stars, allowed us to confirm this hypothesis, since in all cases they were identified as massive OB type stars.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3213794
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