1994A&A...285..871B

Query : 1994A&A...285..871B

1994A&A...285..871B - Astronomy and Astrophysics, volume 285871-874 (1994/5-3)

NGC 6522: an intermediate metallicity globular cluster projected on the Baade Window.

BARBUY B., ORTOLANI S. and BICA E.

Abstract (from CDS):

We studied NGC 6522 colour magnitude diagrams using CCD photometry with BV filters. We have carefully estimated the reddening, which is critical for Baade Window studies, obtaining E(B-V) = 0.55. We derive for this intermediate metallicity cluster, a distance of 6.2 kpc, slightly foreground to the bulk of the metal-rich bulge population. The CMD properties of the cluster core show an enhanced and extended blue horizontal branch, a characteristic in common with many other core collapsed globular clusters.

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Journal keyword(s): globular clusters: individual: NGC 6522 - Galaxy: center - Galaxy: abundances - HR diagram

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ESO 455-23 GlC 17 35 47.80 -30 28 11.0           ~ 285 0
2 NAME Baade Window reg 18 03.5 -30 01           ~ 643 3
3 NGC 6522 GlC 18 03 34.08 -30 02 02.3           ~ 569 0
4 NGC 6528 GlC 18 04 49.61 -30 03 20.8   12.12 10.65     ~ 561 0
5 NGC 6553 GlC 18 09 15.68 -25 54 27.9   9.08       ~ 644 0
6 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0

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