Measuring the halo mass function in loose groups

D.J. Pisano , D.G. Barnes , B.K. Gibson , L. Staveley-Smith , K.C. Freeman , V.A. Kilborn

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classification 🌌 astro-ph.CO

keywords groupsfunctionmassgrouplocallooseanalogousatca

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Using data from our Parkes & ATCA HI survey of six groups analogous to the Local Group, we find that the HI mass function and velocity distribution function for loose groups are the same as those for the Local Group. Both mass functions confirm that the "missing satellite" problem exists in other galaxy groups.

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Measuring the halo mass function in loose groups

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