TY - JOUR
T1 - Variable stars in the Quintuplet stellar cluster with the VVV survey
AU - Molina, Claudio Navarro
AU - Borissova, J.
AU - Catelan, M.
AU - Alonso-García, J.
AU - Kerins, E.
AU - Kurtev, R.
AU - Lucas, P. W.
AU - Medina, N.
AU - Minniti, D.
AU - Dékány, I.
N1 - Funding Information:
ACKNOWLEDGEMENTS The authors would like to thank the anonymous referee for the helpful comments and suggestions. Support for CNM, JB, JA-G, RK, MC, NM and ID is provided by the Ministry of Economy, Development and Tourism'sMillennium Science Initiative, through grant IC120009, awarded to the Millennium Institute of Astrophysics (MAS). CNM is supported by proyecto GEMINI-CONICYT No. 32110004 and ALMA-CONICYT No. 31120015.We gratefully acknowledge additional support by Proyecto Basal PFB-06/2007 and by proyecto FONDECYT Regular #1141141 (MC), and FONDECYT Regular #1130196 (DM). JA-G also acknowledges support from FONDECYT Iniciación 11150916. We finally acknowledge support by CONICYT REDES Project #140042.
Publisher Copyright:
© 2016 The Authors.
PY - 2016/10/21
Y1 - 2016/10/21
N2 - The Quintuplet cluster is one of the most massive star clusters in the MilkyWay, 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 theVistaVariables in theVia 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 KS-band epochs. 33 stars show KS-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.
AB - The Quintuplet cluster is one of the most massive star clusters in the MilkyWay, 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 theVistaVariables in theVia 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 KS-band epochs. 33 stars show KS-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.
KW - Open clusters and associations: individual: Quintuplet
KW - Stars: pre-main-sequence
KW - Stars: variables: general
UR - http://www.scopus.com/inward/record.url?scp=84988884850&partnerID=8YFLogxK
U2 - 10.1093/mnras/stw1613
DO - 10.1093/mnras/stw1613
M3 - Article
AN - SCOPUS:84988884850
SN - 0035-8711
VL - 462
SP - 1180
EP - 1191
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 2
ER -