Hypothetical form of dark matter in galactic halos
"MACHO" redirects here. For other uses, see Macho (disambiguation).
A MAssive Compact Halo Object (MACHO) is a kind of astronomical body that might explain the apparent presence of dark matter in galaxy 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.
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A MAssiveCompactHaloObject (MACHO) is a kind of astronomical body that might explain the apparent presence of dark matter in galaxy halos. A MACHO is...
of the main candidates for cold dark matter, the others being massivecompacthaloobjects (MACHOs) and axions. These names were deliberately chosen for...
matter (CDM), warm dark matter, and massivecompacthaloobjects (MACHOs). The presence of dark matter (DM) in the halo is inferred from its gravitational...
series Massivecompacthaloobjects, or MACHOs, a kind of astronomical body that might explain the apparent presence of dark matter in galaxy halos Ferenc...
particles with strong self-interactions Massivecompacthaloobject – Hypothetical form of dark matter in galactic halos Wandelt, Benjamin D; Dave, Romeel;...
formation model in a larger cosmological volume to explore the massive end of the halo mass function for detailed cosmological probe forecasts. TNG-Cluster:...
faint or dark objects such as brown dwarfs, red dwarfs, planets, white dwarfs, neutron stars, black holes, and massivecompacthaloobjects. Such lensing...
particle would not stay bound to the gradually forming object – as the object began to form and compact, the dark matter particles within it would speed up...
onto a massivecompactobject would explain the properties of quasars. It would require a mass of around 108 M☉ to match the output of these objects. Donald...
done to detect MACHOs (MAssiveCompactHaloObjects). Null results of this experiment exclude any dark matter candidate more massive than about a solar mass...
An astronomical object, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists...
which are the low-mass counterparts of WIMPs. Massivecompacthaloobjects (MACHOs), large, condensed objects such as black holes, neutron stars, white dwarfs...
matter around our Milky Way galaxy in the form of hypothetical MassiveCompactHaloObjects (MACHOs), using the method of gravitational microlensing. It...
Earth. Massivecompacthaloobject (MACHO) A kind of astronomical body that might explain the apparent presence of dark matter in galaxy halos. A MACHO...
of compact groups of galaxies". Astrophysical Journal, Part 1. 255: 382–391. Bibcode:1982ApJ...255..382H. doi:10.1086/159838. Dependency of halo concentration...
center of massive galaxies, as well as of intermediate-mass black holes. Primordial black holes belong to the class of massivecompacthaloobjects (MACHOs)...
surrounded by a massivehalo of hot gas that is estimated to contain half the mass of the stars in the galaxy. The nearly invisible halo stretches about...
Bernd; Walsh, Jonelle L.; Gebhardt, Karl (2016-02-11). "The massive dark halo of the compact early-type galaxy NGC 1281". Monthly Notices of the Royal Astronomical...
work decisively ruled out MACHO (Massivecompacthaloobject) dark matter in favor of WIMPs (weakly interacting massive particles). She has proposed a model...
lighter than the traditional forms of cold dark matter, such as MassiveCompactHaloObjects (MACHOs). The Lee-Weinberg bound limits the mass of the favored...
matter objects, and it has been hypothesized that the dark matter haloes surrounding most galaxies might be viewed as enormous "boson stars." The compact boson...
of stars known as the bulge. These are often surrounded by a much fainter halo of stars, many of which reside in globular clusters. Spiral galaxies are...
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