MACHOs (Massive Astrophysical Compact Halo Objects) - as discovered by microlensing experiments towards the LMC - provide a natural explanation for the galactic halo dark matter. A realistic possibility is that MACHOs are brown dwarfs of mass similar to 0.1 M.. Various arguments suggest that brown dwarfs should have a coronal X-ray emission of similar to 10(27) erg s(-1). As MACHOs are presumably clumped into dark clusters (DCs), each DC is expected to have a total X-ray luminosity of similar to 10(30) - 10(32) erg s(-1). We discuss the observational prospects for DCs in the X-ray band.
X-ray emission from dark clusters of MACHOs
DE PAOLIS, Francesco;INGROSSO, Gabriele;
1995-01-01
Abstract
MACHOs (Massive Astrophysical Compact Halo Objects) - as discovered by microlensing experiments towards the LMC - provide a natural explanation for the galactic halo dark matter. A realistic possibility is that MACHOs are brown dwarfs of mass similar to 0.1 M.. Various arguments suggest that brown dwarfs should have a coronal X-ray emission of similar to 10(27) erg s(-1). As MACHOs are presumably clumped into dark clusters (DCs), each DC is expected to have a total X-ray luminosity of similar to 10(30) - 10(32) erg s(-1). We discuss the observational prospects for DCs in the X-ray band.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
