TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A large, relatively dust-free, spherical region surrounding a spiral galaxy, such as our own [Milky Way].  3, record 1, English, - galactic%20halo

Record number: 1, Textual support number: 1 OBS

The inner, visible part of the halo, which has roughly the same diameter as the galactic disk, is occupied by Population II objects, including globular clusters and old, individual stars. Beyond this is a much larger region, called the dark halo or extended halo, containing large amounts of dark matter, the presence of which is revealed by its gravitational effect on the galaxy's rotation. The nature of galactic dark matter is still undetermined but the most popular theory, supported by some recent observations, is that the dark halo is home to vast numbers of small, unseen bodies known as MACHOs.  3, record 1, English, - galactic%20halo

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Le halo galactique est une région de l'espace entourant les galaxies spirales, et notamment notre Galaxie, la Voie lactée. On pense que le halo galactique est principalement constitué d'étoiles, de gaz et de matière noire. Dans une galaxie elliptique, il n'y a pas de transition nette entre le corps de la galaxie et le halo.  2, record 1, French, - halo%20galactique

Record 1,  Textual support,  Spanish