Deep Hubble space telescope WFPC2 photometry of NGC 288. II. The main-sequence luminosity function

Michele Bellazzini, Flavio Fusi Pecci, Paolo Montegriffo, Maria Messineo, Lorenzo Monaco, Robert T. Rood

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

23 Citas (Scopus)

Resumen

The main-sequence luminosity function (LF) of the Galactic globular cluster NGC 288 has been obtained using deep Wide Field Planetary Camera 2 photometry. We have employed a new method to correct for completeness and fully account for bin-to-bin migration due to blending and/or observational scatter. The effect of the presence of binary systems in the final LF is quantified and is found to be negligible. There is a strong indication of the mass segregation of unevolved single stars and clear signs of a depletion of low-mass stars in NGC 288 with respect to other clusters. The results are in good agreement with the prediction of theoretical models of the dynamical evolution of NGC 288 that take into account the extreme orbital properties of this cluster.

Idioma originalInglés
Páginas (desde-hasta)2541-2551
Número de páginas11
PublicaciónAstronomical Journal
Volumen123
N.º5 1757
DOI
EstadoPublicada - may 2002

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

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