Near-Infrared Photometry of the Globular Cluster Palomar 6 | Zendy

Jae-Woo Lee | Zendy; Bruce W. Carney | Zendy

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Near-Infrared Photometry of the Globular Cluster Palomar 6

Author(s) -

Jae-Woo Lee,

Bruce W. Carney

Publication year - 2002

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/340464

Subject(s) - globular cluster , photometry (optics) , astrophysics , physics , distance modulus , metallicity , red giant branch , astronomy , horizontal branch , galaxy , stars , magnitude (astronomy) , population , stellar population , star formation , medicine , environmental health

We present JHK photometry of Palomar 6. Our photometric measurements rangefrom the RGB-tip to 2 mag below the RHB and our CMDs show that Palomar~6appears to have a well-defined RHB population. The distance modulus andinterstellar reddening of the cluster are estimated by comparing the magnitudeand color of Palomar 6 RHB stars with respect to those of 47 Tuc. We obtain(m-M)_0 = 14.28 mag and E(B-V) = 1.30 mag for the cluster and our studysuggests that Palomar~6 is clearly located in the Galaxy's central regions. Wealso discuss the metallicity of the cluster using the slope of the RGB. Weobtain [Fe/H] = -1.2 for Palomar~6 and our metallicity estimate is 0.5 - 1.0dex lower than previous estimates by others.Comment: 14 pages, 4 tables, 12 figures; accepted for publication in AJ (2002 June

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