MACCHIOs as Cold Dark Matter

Details MACCHIOs as Cold Dark Matter MACCHIOs as Cold Dark Matter

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007idm..conf...87c&link_type=abstract

THE IDENTIFICATION OF DARK MATTER. Proceedings of the Sixth International Workshop. Held 11-16 September 2006 in Rhodes, Greece.

Mathematics

Logic

Whim, Imbh, Macho, Pbh

Scientific paper

This paper discusses the possibility that the cold dark matter may comprise dark baryons or primordial black holes as well as WIMPs. Some baryons are certainly dark and, although the most conventional repository for them would be hot or warm gas, they could also be contained in cold clouds or stellar remnants. Primordial black holes could provide dark matter if they are either too large to have evaporated or the stable relics of evaporating ones. All such objects would cluster inside halos, along with WIMPs, but if they were pregalactic, there would also be an intergalactic distribution of them. The term MACCHIO is introduced as a useful generalization of MACHO. There is no conclusive evidence for MACCHIOs but they could be of astrophysical interest even if their cosmological density is low.

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