Microlensing implications for halo dark matter
De Paolis, F. · Jetzer, Ph. · Ingrosso, G. · Roncadelli, M.
Original · EN
The observations of microlensing events in the Large Magellanic Cloud suggest that a sizable fraction (50%) of the galactic halo is in the form of MACHOs (Massive Astrophysical Compact Halo Objects) with an average mass 0.27 M, assuming a standard spherical halo model. We describe a scenario in which dark clusters of MACHOs and cold molecular clouds (mainly of H₂) naturally form in the halo at galactocentric distances larger than 10--20 kpc.
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