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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.
Abstract Copyright: ∼
Journal keyword(s): globular clusters: individual: NGC 6522 - Galaxy: center - Galaxy: abundances - HR diagram
Simbad objects: 6
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