The luminosity function of the globular cluster NGC 6752 with the Hubble Space Telescope: evidence of mass segregation
Open Access
- 21 April 1997
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 286 (4) , 1012-1022
- https://doi.org/10.1093/mnras/286.4.1012
Abstract
We present the luminosity function (LF) for the lower main sequence of the Galactic globular cluster NGC 6752, as obtained from Hubble Space Telescope (HST) observations centred 2 arcmin from the cluster centre. We present data in the F814W and F555W filters. Our LF reaches down to M1 = 11 or, translated to a mass function, to M≃0.12 M⊙. The LF reaches a maximum between M1 = 8.5 and 9, and shows no indication of an increase towards lower luminosities/masses; this is at variance with some ground-based observations, but is similar to all other HST-based LFs. There is a clear indication of mass segregation since the relative numbers of bright/faint stars differ from that found in ground-based observations and in other clusters analysed with the HST.Keywords
This publication has 0 references indexed in Scilit: