UBV CCD Photometry of the Intermediate Age Open Cluster NGC 6716

Details UBV CCD Photometry of the Intermediate Age Open Cluster NGC 6716 UBV CCD Photometry of the Intermediate Age Open Cluster NGC 6716

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jkas...29..137c&link_type=abstract

Journal of the Korean Astronomical Society, vol. 29, no. 2, p. 137-156

Astronomy and Astrophysics

Astronomy

1

Clusters: Open, Individual: Ngc 6716, Photometry, Luminosity Function, Mass Function

Scientific paper

NGC 6716 is an intermediate-age open cluster in Sagittarius. In this paper, we present the new UBV CCD photometry of the stars in the cluster, which is deeper than previous ones. From the color-color diagram and the color-magnitude diagram, we derived a reddening E(B-V) = 0.17 +- 0.03 and a distance modulus of the cluster, (V-Mv) = 9.2 +- 0.1. An age of the cluster is estimated as 8*10E7 yrs from the latest isochrone. Luminosity function and mass function of the cluster are derived. The gradient of the mass function of bright stars is a bit steep, Gamma = -1.85 +- 0.05, and there is no distinct bump and dip in the mass function.

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