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J/A+A/532/A131      New Galactic star clusters in VVV survey  (Borissova+, 2011)

New Galactic star clusters discovered in the VVV survey. Borissova J., Bonatto C., Kurtev R., Clarke J.R.A., Penaloza F., Sale S.E., Minniti D., Alonso-Garcia J., Artigau E., Barbda R., Bica E., Baume G.L., Catelan M., Chene A.-N., Dias B., Folkes S.L., Froebrich D., Geisler D., de Grijs R., Hanson M.M., Hempel M., Ivanov V.D., Kumar M.S.N., Lucas P., Mauro F., Moni Bidin C., Rejkuba M., Saito R.K., Tamura M., Toledo I. <Astron. Astrophys. 532, A131 (2011)> =2011A&A...532A.131B
ADC_Keywords: Clusters, open ; Stars, OB ; Photometry, infrared Keywords: open clusters and associations: general - stars: early-type - infrared: general Abstract: VISTA Variables in the Via Lactea (VVV) is one of the six ESO Public Surveys operating on the new 4-meter Visible and Infrared Survey Telescope for Astronomy (VISTA). VVV is scanning the Milky Way bulge and an adjacent section of the disk, where star formation activity is high. One of the principal goals of the VVV Survey is to find new star clusters of different ages. In order to trace the early epochs of star cluster formation we concentrated our search in the directions to those of known star formation regions, masers, radio, and infrared sources. The disk area covered by VVV was visually inspected using the pipeline processed and calibrated KS-band tile images for stellar overdensities. Subsequently, we examined the composite JHKS and ZJKS color images of each candidate. PSF photometry of 15x15arcmin fields centered on the candidates was then performed on the Cambridge Astronomy Survey Unit reduced images. After statistical field-star decontamination, color-magnitude and color-color diagrams were constructed and analyzed. Description: We carried out a VVV J, H and Ks survey of infrared star clusters in the Milky Way southern disk area. We concentrated efforts on embedded clusters, which are those expected in the areas of known star formation regions, masers, radio, and infrared sources. The present study provides 96 new infrared clusters and stellar groups. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 168 96 New Galactic star clusters discovered in the VVV Survey
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 6 A6 --- --- [VVV CL] 7- 9 I03 --- VVV-CL Object name (VVV CLNNN) 11- 12 I2 h RAh Right ascension (J2000) 14- 15 I2 min RAm Right ascension (J2000) 17- 18 I2 s RAs Right ascension (J2000) 20 A1 --- DE- Declination sign (J2000) 21- 22 I2 deg DEd Declination (J2000) 24- 25 I2 arcmin DEm Declination (J2000) 27- 28 I2 arcsec DEs Declination (J2000) 30- 31 I2 --- N ? Number of most probable cluster members 33- 34 I2 arcsec R Apparent cluster radius 36- 39 A4 --- Tile VVV tile name 41-168 A128 --- Com Comments
Acknowledgements: Jura Borissova,
(End) Patricia Vannier [CDS] 23-Jun-2011
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