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1995A&A...298..461F - Astronomy and Astrophysics, volume 298461-464 (1995/6-2)
Deep infrared array photometry of galactic globular clusters: the main sequence of NGC 6171.
FERRARO F.R., FUSI PECCI F., MONTEGRIFFO P., ORIGLIA L. and TESTA V.
Abstract (from CDS):
Deep J,K IR-array photometry for individual Main Sequence stars in NGC 6171 reaching K∼18, about two magnitudes below the Turnoff, is presented. A first comparison with the theoretical isochrones computed by Bergbusch & VandenBerg (1992ApJS...81..163B) and transformed onto the near-IR plane by Bell (1992MNRAS.257..423B) shows that, after imposing a proper matching at the level of the giant branch, the models yield an adequate fit to the overall morphology of the available Colour Magnitude Diagrams. As already found by Davidge & Simons (1994AJ....107..240D) in M4, the offset one has to apply to the model colors (V-J), (V-K) is however quite large (∼0.1mag).
Abstract Copyright: ∼
Journal keyword(s): cluster: globular: individual: NGC 6171 - techniques: photometric - stars: Population II - HR diagram - infrared: stars
VizieR on-line data: <Available at CDS (J/A+A/298/461): table>
Simbad objects: 1
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