The mass function of NGC288
| dc.creator | Pasquali, A. | |
| dc.creator | Brigas, M. S. | |
| dc.creator | De Marchi, G. | |
| dc.date | 2000-08-23 | |
| dc.date.accessioned | 2026-07-07T01:55:05Z | |
| dc.date.available | 2026-07-07T01:55:05Z | |
| dc.description | We present NICMOS NIC3 observations of the Galactic globular cluster NGC 288, taken South - East at 2.4 times the cluster's half-light radius in the J and H bands. We have detected the cluster main sequence down to J~25 and H~24. The corresponding luminosity function covers the range 3<M_H<9 and peaks at M_H~6.8. The theoretical tracks of Baraffe et al. (1997) at [Fe/H]=-1.3 give a mass function which is best fitted by a log-normal distribution with characteristic mass m_c=0.42 Msolar and a standard deviation sigma=0.35. This result is fully consistent with the global mass function derived by Paresce & De Marchi (2000) for a sample of 12 globular clusters with very different dynamical histories, thus confirming that near the cluster's half-light radius the mass function appears ``undistorted'' by evaporation or tidal interactions with the Galaxy and should then reflect the initial mass function. | |
| dc.description | 6 pages, 6 figures, accepted for publication in Astronomy and Astrophysics | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0008373 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0008373 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/1536 | |
| dc.subject | Astrophysics | |
| dc.title | The mass function of NGC288 | |
| dc.type | text |