Variable stars in the Quintuplet stellar cluster with the VVV survey
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Archivos
Fecha
2016-10
Profesor/a Guía
Facultad/escuela
Idioma
en
Título de la revista
ISSN de la revista
Título del volumen
Editor
OXFORD UNIV PRESS
Nombre de Curso
Licencia CC
Licencia CC
Resumen
The Quintuplet cluster is one of the most massive star clusters in the Milky Way, situated very close to the Galactic Centre. We present a new search for variable stars in the vicinity of the cluster, using the five-year data base of the Vista Variables in the Via Lactea (VVV) ESO Public Survey in the near-infrared. A total of 7586 objects were identified in the zone around 2 arcmin from the cluster centre, using 55 K-S-band epochs. 33 stars show K-S-band variability, 24 of them being previously undiscovered. Most of the variable stars found are slow/semiregular variables, long-period variables of the Mira type, and OH/IR stars. In addition, a good number of our candidates show variations in a rather short time-scale. We also propose four young stellar object candidates, which could be cluster members.
Notas
Indexacion: Web of Science.
Palabras clave
Stars: pre-main-sequence, Stars: variables: general, Open clusters and associations: individual: Quintuplet
Citación
Mon Not R Astron Soc (2016) 462 (2): 1180-1191