galactic halo


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galactic halo

See Galaxy. See also dark halo.

galactic halo

[gə′lak·tik ′hā·lō]
(astronomy)
The spherical distribution of oldest stars that are centered about the galactic center of the Milky Way Galaxy.
References in periodicals archive ?
Beaten just over three lengths into fourth, Galactic Halo fell a little short on debut at Wolverhampton but should be sharper for the experience.
General topics include the galactic halo, high velocity clouds and satellites; the disk-halo interface; outflows, starbursts and fountains; and extra-planar gas at intermediate and high redshift.
This type of particle might inhabit a spherical region known as the galactic halo, encompassing our galaxy.
Some sort of activity "is building up and breaking open a hole in the plane of our galaxy and pouring gas into the galactic halo," Dermer asserts.
Recent studies have revealed that galactic halos also contain colder gas with temperatures around 10,000[degrees].
galactic halos misting retinas, fickle nymphs twirling
This adds a nice example in the local universe to the growing evidence that galactic halos are built up from the accretion of dwarf satellite galaxies," says study coauthor Eric Peng of the Johns Hopkins University in Baltimore.
The technique "is a powerful probe of mass in galactic halos," says Richard S.