Lee, Jae-Woo and Carney, Bruce W. (2002) Near-Infrared Photometry of the Globular Cluster Palomar 6. Astronomical Journal, 123 (6). pp. 3305-3317. ISSN 0004-6256. doi:10.1086/340464. https://resolver.caltech.edu/CaltechAUTHORS:20170408-161833878
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Abstract
We present JHK photometry of Palomar 6. Our photometric measurements range from the red giant branch (RGB) tip to ≈2 mag below the red horizontal branch (RHB), and our color-magnitude diagrams show that Palomar 6 appears to have a well-defined RHB population. The distance modulus and interstellar reddening of the cluster are estimated by comparing the magnitude and color of Palomar 6 RHB stars with those of 47 Tuc. We obtain (m - M)_0 = 14.28 mag and E(B-V) = 1.30 mag for the cluster, and our study suggests that Palomar 6 is clearly located in the Galaxy's central regions. We also discuss the metallicity of the cluster using the slope of the RGB. We obtain [Fe/H] ≈ -1.2 for Palomar 6 and our metallicity estimate is ≈0.5–1.0 dex lower than previous estimates by others.
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| Additional Information: | © 2002. The American Astronomical Society. Received 2001 September 19; accepted 2002 February 28. This is part of the Ph.D. thesis work of J.-W. Lee at the University of North Carolina at Chapel Hill. J.-W. Lee thanks Dante Minniti for providing his photometric table. We also thank an anonymous referee for useful comments and a careful review of the paper. This research was supported by the National Aeronautics and Space Administration grant number GO-07318.04-96A from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555 and National Science Foundation grants AST 96-19381 and AST 99-88156. Support for this work was also provided in part by the Creative Research Initiative Program of the Korean Ministry of Science and Technology. | ||||||||||||
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| Subject Keywords: | color-magnitude diagrams ; globular clusters: individual (Palomar 6) ; stars: horizontal-branch; stars: Population II | ||||||||||||
| Issue or Number: | 6 | ||||||||||||
| DOI: | 10.1086/340464 | ||||||||||||
| Record Number: | CaltechAUTHORS:20170408-161833878 | ||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20170408-161833878 | ||||||||||||
| Official Citation: | Jae-Woo Lee and Bruce W. Carney 2002 AJ 123 3305 | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 76167 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | 1Science Import | ||||||||||||
| Deposited On: | 09 Aug 2017 21:02 | ||||||||||||
| Last Modified: | 15 Nov 2021 16:58 |
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