Pfleiderer 2 : identification of a new globular cluster in the galaxy
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Date
2009Type
Subject
Abstract
We provide evidence that indicates the star cluster Pfleiderer 2, which is projected in a rich field, as a newly identified Galactic globular cluster. Since it is located in a crowded field, core extraction and decontamination tools were applied to reveal the cluster sequences in B, V, and I color–magnitude diagrams (CMDs). The main CMD features of Pfleiderer 2 are a tilted red giant branch and a red horizontal branch, indicating a high metallicity around solar. The reddening is E(B − V ) = 1.0 ...
We provide evidence that indicates the star cluster Pfleiderer 2, which is projected in a rich field, as a newly identified Galactic globular cluster. Since it is located in a crowded field, core extraction and decontamination tools were applied to reveal the cluster sequences in B, V, and I color–magnitude diagrams (CMDs). The main CMD features of Pfleiderer 2 are a tilted red giant branch and a red horizontal branch, indicating a high metallicity around solar. The reddening is E(B − V ) = 1.01. The globular cluster is located at a distance of d = 16 ± 2 kpc from the Sun. The cluster is located 2.7 kpc above the Galactic plane and at a distance of RGC = 9.7 kpc from the Galactic center, which is unusual for a metal-rich globular cluster. ...
In
The Astronomical journal. Vol. 138, no. 3 (Sep. 2009), p. 889-894
Source
Foreign
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Journal Articles (39042)Exact and Earth Sciences (5930)
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