Release 11.12 ("Hergest Ridge")
Release 11.12 ("Hergest Ridge")
| Article ID: gc382 | |
| Author | Ferraro, Francesco R.; Piotto, Giampaolo |
| Title | Deep luminosity functions of globular clusters. IV - NGC 6171 |
| Journal | MNRAS , vol. 255, p. 71-82 |
| Year of publication | 1992 (on gclusters from 2013-10-01 17:24:14 ) |
| Abstract | The main-sequence properties and the mass function of the metal-rich globular cluster NGC 6171 have been studied. Deep BV CCD photometry is presented for four fields located between 2 and 5 core radii from the cluster center. The apparent distance modulus is estimated as (m-M)V = 14.63+/-0.20 using two different procedures. A luminosity function down to V approximately 23.5 has been constructed and corrected for incompleteness. A comparison with the theoretical luminosity function shows that the mass function (modeled as a power law) has a slope x approximately equals -1 down to m of about 0.6 solar mass. A comparison of the MS locus with the theoretical isochrones suggests an age of about 18 Gyr if an alpha-element enhancement is taken into account. |
| Tags | NGC 6171 |
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