The Globular Cluster Luminosity Function as a Distance Indicator: Dynamical Effects
نویسندگان
چکیده
منابع مشابه
The Globular Cluster Luminosity Function as a Distance Indicator : Dynamical
The dynamical evolution of the globular cluster systems in galaxies is predicted, based on the standard dynamical theory normalized to the example of the Milky Way. The major processes varying with the galactocentric distance are the tidal shocks and dynamical friction. Our simple model explains, on a quantitative basis, the observed diierences of the inner and outer populations of globular clu...
متن کاملThe Globular Cluster Luminosity Function as a Distance Indicator: Dynamical Effects
The dynamical evolution of the globular cluster systems in galaxies is predicted, based on the standard dynamical theory normalized to the example of the Milky Way. The major processes varying with the galactocentric distance are the tidal shocks and dynamical friction. Our simple model explains, on a quantitative basis, the observed differences of the inner and outer populations of globular cl...
متن کاملGlobular Cluster Systems as Distance Indicators: Metallicity Effects on the Luminosity Function
We investigate the universality of the globular cluster luminosity function (GCLF) and the use of this function as an extragalactic distance indicator. Previous studies have found an o set between GCLF distances and those obtained with other techniques. We show that this o set can be understood in terms of a metallicity e ect. Speci cally, the globular cluster systems used in distance scale stu...
متن کاملCluster luminosity function and n th ranked magnitude as a distance indicator ⋆ ⋆ ⋆
We define here a standard candle to determine the distance of clusters of galaxies and to investigate their peculiar velocities by using the n rank galaxy (magnitude mn). We address the question of the universality of the luminosity function for a sample of 28 rich clusters of galaxies (cz≃20000 km.s) in order to model the influence on mn of cluster richness. This luminosity function is found t...
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We consider the observational signature of the dynamical eeects on the lumi-nosity function of globular clusters. For the three best studied systems, in Milky Way, M31, and M87, there is a statistically signiicant diierence between the inner and outer population of globular clusters. In all cases the inner clusters are on average brighter than the outer clusters (0:26 < m 0 < 0:84) and have a s...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1997
ISSN: 0004-637X,1538-4357
DOI: 10.1086/304646