Back جرم هالي مضغوط ثقيل Arabic MACHO Bulgarian MACHO Catalan MACHO German Objeto astrofísico masivo de halo compacto Spanish Massive compact halo object French Macho (fisica) Italian MACHO Japanese 마초 (천체) Korean MACHO NN
A MAssive Compact Halo Object (MACHO) is a kind of astronomical body that might explain the apparent presence of dark matter in galactic halos. A MACHO is a body that emits little or no radiation and drifts through interstellar space unassociated with any planetary system (and may or may not be composed of normal baryonic matter). Since MACHOs are not luminous, they are hard to detect. MACHO candidates include black holes or neutron stars as well as brown dwarfs and unassociated planets. White dwarfs and very faint red dwarfs have also been proposed as candidate MACHOs. The term was coined by astrophysicist Kim Griest.[1]
- ^ Croswell, Ken (2002). The Universe at Midnight. Simon and Schuster. p. 165.