satellite galaxy

(redirected from Satellite galaxies)

satellite galaxy

A small galaxy that closely orbits a massive galaxy and will eventually lose orbital energy through dynamical friction and fall into and merge with it. The Magellanic Clouds are satellites of our Galaxy. See also cannibalism.
References in periodicals archive ?
In this view, large galaxies are like hoarders, snatching up satellite galaxies and tossing them wherever.
Different parent populations, such as the Milky Way disk or halo, dwarf satellite galaxies or globular clusters, are known to have radically different chemical compositions.
There are a number of smaller galaxies that are much closer to the Milky Way than Andromeda, but these are satellite galaxies that orbit our own, and at least two of them - the Large and Small Magellanic Clouds - will be subsumed within the Milky Way in the future.
Pandey collected all the available age determinations for star clusters in the Magellanic Clouds, the Milky Way's two largest satellite galaxies.
The Milky Way has several satellite galaxies and is part of the Local Group of galaxies, which is a component of the Virgo Supercluster, which is itself a component of the Laniakea Supercluster.
Eight more satellite galaxies have been found buzzing around the Milky Way, researchers report online August 16 at arXiv.
The model predicts there should be many more small satellite galaxies around our Milky Way than we can observe.
Lead author Neil Ibata of the Lycee International in Strasbourg, France, said that they were surprised to find that a large proportion of pairs of satellite galaxies had oppositely directed velocities if they were situated on opposite sides of their giant galaxy hosts.
But now, astronomers have found signs of star formation in a giant tail of gas that is trailing these satellite galaxies of the Milky Way.
It is well worth seeking out, as it is one of the furthest satellite galaxies of our own Milky Way.
This just in from outer space: The Small and Large Magellanic Clouds may be loiterers come from afar, instead of ordinary orbiters like our galaxy's other satellite galaxies.
The outer halos of large galaxies are built up through the merger and dissolution of smaller " dwarf" satellite galaxies.

Full browser ?