Near-Infrared Photometric Study of the Old Open Cluster Trumpler 5
arXiv:0912.4588 · doi:10.5303/JKAS.2009.42.6.135
Abstract
We present JHK near-infrared photometric study for the old open cluster (OC) Trumpler 5 (Tr 5), based on the 2MASS data. From the color-magnitude diagrams of Tr 5, we have located the position of the red giant clump (RGC) stars, and used the mean magnitude of the RGC stars in K-band to estimate the distance to Tr 5, d = 3.1 +/- 0.1 kpc ((m-M)_0 = 12.46 +/- 0.04). From fitting the theoretical isochrones of Padova group, we have estimated the reddening, metallicity, and age : E(B-V) = 0.64 +/- 0.05, [Fe/H] = -0.4 +/- 0.1 dex, and t =2.8 +/- 0.2 Gyr (log t=9.45 +/- 0.04), respectively. These parameters generally agree well with those obtained from the previous studies on Tr 5 and confirms that this cluster is an old OC with metallicity being metal-poorer than solar abundance, located in the anti-Galactic center region.
JKAS (J. of the Korean Astron. Soc.) in press (2009 Dec issue), page numbers will be changed
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Cited by in corpus (5)
- The Gaia-ESO survey: Calibrating a relationship between Age and the [C/N] abundance ratio with open clusters
- The old, metal-poor, anticentre open cluster Trumpler 5
- Sulfur abundances in three Galactic clusters: Ruprecht 106, Trumpler 5 and Trumpler 20
- Open Clusters as Probes of the Galactic Magnetic Field: I. Cluster Properties
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