MACHOs as brown dwarfs

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dc.creatorDe Paolis, F.
dc.creatorIngrosso, G.
dc.creatorJetzer, Ph.
dc.creatorRoncadelli, M.
dc.date1998-03-17
dc.date.accessioned2026-07-07T02:26:25Z
dc.date.available2026-07-07T02:26:25Z
dc.descriptionRecent 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 Objects (MACHOs). Although the average MACHO mass is presently poorly known, the value $\sim 0.1 M_{\odot}$ looks as a realistic estimate, thereby implying that brown dwarfs are a viable and natural candidate for MACHOs. We describe a scenario in which dark clusters of MACHOs and cold molecular clouds (mainly of $H_2$) naturally form in the halo at galactocentric distances larger than 10-20 kpc. Moreover, we discuss various experimental tests of this picture.
dc.descriptionTo appear in the proceedings of the workshop DM-ITALIA-97
dc.identifierhttps://arxiv.org/abs/astro-ph/9803200
dc.identifierhttp://arxiv.org/abs/astro-ph/9803200
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/12260
dc.subjectAstrophysics
dc.titleMACHOs as brown dwarfs
dc.typetext

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