How to find MACHOs in the Virgo Cluster

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dc.creatorTadros, Helen
dc.creatorWarren, Stephen
dc.creatorHewett, Paul
dc.date1998-06-12
dc.date.accessioned2026-07-07T10:31:48Z
dc.date.available2026-07-07T10:31:48Z
dc.descriptionWe discuss the feasibility of finding extra-galactic MACHOs by monitoring quasars behind the Virgo cluster of galaxies. We show that with only a modest observing programme one could detect several MACHOs in the mass range 1 X 10^{-5} to 2 X 10^{-2} solar masses if they make a significant contribution to the mass of Virgo. The contamination by events from cosmologically distributed MACHOs is estimated and is negligible if either the MACHO mass is greater than about 10^{-4} solar masses or the quasar radius is greater than about 3 X 10^{15} cm.
dc.description5 pages, 1 figure, to appear in New Astronomy
dc.identifierhttps://arxiv.org/abs/astro-ph/9806176
dc.identifierhttp://arxiv.org/abs/astro-ph/9806176
dc.identifierNewAstron.Rev.42:115-119,1998
dc.identifierdoi:10.1016/S1387-6473(98)00031-1
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178538
dc.subjectAstrophysics
dc.titleHow to find MACHOs in the Virgo Cluster
dc.typetext

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