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Near Infrared Photometry of New Galactic Globular Clusters GC 01 and GC 02

Published online by Cambridge University Press:  03 August 2017

J. Borissova ,
V. D. Ivanov  and
L. Vanzi
J. Borissova
Affiliation:
Institute of Astronomy, Bulgarian Academy of Sciences, Sofia, Bulgaria
V. D. Ivanov
Affiliation:
European Southern Observatory (ESO), Santiago, Chile
L. Vanzi
Affiliation:
European Southern Observatory (ESO), Santiago, Chile

Abstract

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We present a preliminary report on the first deep near infrared photometry of 2MASS GC 01 and 2MASS GC 02 - new Galactic globular cluster candidates, discovered by the 2MASS. The red giant branch slopes yielded [Fe/H]=-0.42 ± 0.15 dex and [Fe/H]=-0.66 ± 0.17 dex, respectively for GC 01 and GC 02. We estimated the reddening towards GC 01 and GC 02: E(B - V) = 5.36 ± 0.20, and E(B - V) = 4.55 ± 0.17. The calculated distance moduli to the clusters are: (m - M)0 = 13.53 ± 0.27 and (m - M)0 = 14.53 ± 0.31 for GC 01 and GC 02. Our best fit for the radial surface brightness profile of GC 02 yields: lg(rc) = 1.40, lg(rh) = 1.54, lg(rt) = 1.31, and c=1.60. CC 01 is less concentrated: lg(rc) = 1.63, lg(rh) = 1.7, lg(rt) = 1.25, and c=1.41.

Type
Part 1. The Star Clusters of Local Group Galaxies
Information
Symposium - International Astronomical Union , Volume 207: Extragalactic Star Clusters , 2002 , pp. 107 - 109
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Koornneef, J., 1983, A&A, 128, 84 Google Scholar
Carretta, E., & Gratton, R., 1997, A&AS, 121, 95 Google Scholar
Ferraro, F., Montegriffo, P., Origlia, L., & Fusi Pecci, F., 2000, AJ, 119, 1282 CrossRefGoogle Scholar
Harris, W., 1991, ARA&A, 29, 543 Google Scholar
Harris, W., 1996, AJ, 112, 1487 CrossRefGoogle Scholar
Hurt, R., Jarrett, T., Kirkpatrick, J., Cutri, R. M., Schneider, S. et al., 2000, AJ, 120, 1876 CrossRefGoogle Scholar
King, A., 1966, AJ, 71, 64 CrossRefGoogle Scholar
Stetson, P., 1993, User manual for DAOPHOT II Google Scholar