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Gravitational Microlensing by Globular Clusters
P. Jetzer, M. Strässle, U. Wandeler
Stars in globular clusters can act either as sources for MACHOs (Massive Astrophysical Compact Halo Objects) located along the line of sight or as lenses for more distant backgroun…
MACHOs as brown dwarfs
F. De Paolis, G. Ingrosso, Ph. Jetzer +1
Recent observations of microlensing events in the Large Magellanic Cloud suggest that a sizable fraction of the galactic halo is in the form of Massive Astrophysical Compact Halo O…
Binary brown dwarfs in the galactic halo?
F. De Paolis, G. Ingrosso, Ph. Jetzer +1
Microlensing events towards the Large Magellanic Cloud entail that a sizable fraction of dark matter is in the form of MACHOs (Massive Astrophysical Compact Halo Objects), presumab…
Halo dark clusters of brown dwarfs and molecular clouds
F. De Paolis, G. Ingrosso, Ph. Jetzer +1
The discovery of Massive Astrophysical Compact Halo Objects (MACHOs) in microlensing experiments makes it compelling to understand their physical nature, as well as their formation…