Assessing the Stellar Population and the Environment of an HII Region on the Far Side of the Galaxy
Archivos
Fecha
2021
Profesor Guía
Formato del documento
Articulo
ORCID Autor
Título de la revista
ISSN de la revista
Título del volumen
Editor
American Astronomical Society (Aas)
Ubicación
ISBN
ISSN
item.page.issne
item.page.doiurl
Facultad
Facultad de Ciencias
Departamento o Escuela
Instituto de Fisica y Astronomia
Determinador
Recolector
Especie
Nota general
Resumen
We have investigated the stellar and interstellar content of the distant star formation region IRAS 17591-2228 (WISE H ii region GAL 007.47+0.06). It is associated with a water maser, whose parallax distance is $d={20.4}_{-2.2}^{+2.8}$ kpc, supported by independent measurements of proper motion and radial velocity. It is projected in the same direction as an extremely red (J−KS ∼ 6 mag) group of stars, and a shell of mid-infrared emission. We qualify the group of stars as a cluster candidate, VVV CL177. Its radius spans between 0farcm45 and 1' and contains at least two young stellar objects with an extreme extinction near ${A}_{{\rm{V}}}\sim 40$ mag. Yet more analysis will be required to determine if it is a real single cluster associated with the water maser. The 13CO emissions at the radial velocity of the maser corresponds to the mid-infrared emission.
Descripción
Lugar de Publicación
Auspiciador
Palabras clave
STAR CLUSTERS, OPEN STAR CLUSTERS, YOUNG MASSIVE CLUSTERS, YOUNG STELLAR OBJECTS
Licencia
© 2021. The American Astronomical Society. All rights reserved.