Variable stars in the Quintuplet stellar cluster with the VVV survey

Claudio Navarro  Molina; J Borissova; M. Catelan; J Alonso-García; Eamonn Kerins; R Kurtev; P. W.  Lucas; N.  Medina; D Minniti; I. Dékány

doi:10.1093/mnras/stw1613

Variable stars in the Quintuplet stellar cluster with the VVV survey

Claudio Navarro Molina, J Borissova, M. Catelan, J Alonso-García, Eamonn Kerins, R Kurtev, P. W. Lucas, N. Medina, D Minniti, I. Dékány

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Abstract

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.

Original language	English
Pages (from-to)	1180–1191
Journal	Monthly Notices of the Royal Astronomical Society
Volume	462
DOIs	https://doi.org/10.1093/mnras/stw1613
Publication status	Published - 20 Jul 2016

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1607.01795v2Accepted author manuscript, 4.1 MB

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title = "Variable stars in the Quintuplet stellar cluster with the VVV survey",

abstract = "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 arcminfrom 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.",

author = "Molina, {Claudio Navarro} and J Borissova and M. Catelan and J Alonso-Garc{\'i}a and Eamonn Kerins and R Kurtev and Lucas, {P. W.} and N. Medina and D Minniti and I. D{\'e}k{\'a}ny",

year = "2016",

month = jul,

day = "20",

doi = "10.1093/mnras/stw1613",

language = "English",

volume = "462",

pages = "1180–1191",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "1365-2966",

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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, Eamonn

AU - Kurtev, R

AU - Lucas, P. W.

AU - Medina, N.

AU - Minniti, D

AU - Dékány, I.

PY - 2016/7/20

Y1 - 2016/7/20

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 arcminfrom 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 arcminfrom 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.

U2 - 10.1093/mnras/stw1613

DO - 10.1093/mnras/stw1613

M3 - Article

SN - 1365-2966

VL - 462

SP - 1180

EP - 1191

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

Variable stars in the Quintuplet stellar cluster with the VVV survey

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