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arXiv · astro-ph/9904250

The Luminosity Distribution of Local Group Galaxies

C. J. Pritchet·S. van den Bergh
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Abstract

From a rediscussion of Local Group membership, and of distances to individual galaxies, we obtain $M_V$ values for 35 probable and possible Local Group members. The luminosity function of these objects is well fitted by a Schechter function with faint end slope $α= -1.1 \pm 0.1$. The probability that the luminosity distribution of the Local Group is a single Schechter function with $α$ steeper than -1.3 is less than 1 per cent. However, more complicated luminosity functions, such as multi-component Schechter functions with steep faint-end slopes, cannot be ruled out. There is some evidence that the luminosity distribution of dwarf spheroidal galaxies in the Local Group is steeper than that of dwarf irregular galaxies.

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BibTeXRIS

C. J. Pritchet, S. van den Bergh. 1999-04-26. The Luminosity Distribution of Local Group Galaxies. https://doi.org/10.1086/300977

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