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 ?
Scientists have long known galactic halo serves as that particular zone where gases can enter and exit a galaxy.
Silk, "Cosmic ray constraints on the annihilations of relic particles in the galactic halo," Physics Letters B, vol.
This accolade belongs to the neutrino--a fermion which, by virtue of its non-zero mass [1], is capable of gravitational condensation to form quantum degenerate galactic haloes [2].
Related to the likes of Xaar, Galactic Halo's paddock value would rise sharply if she could get her head in front on the racecourse and she was not too far off on her debut.
The 127 contributions are organized into eight sections: white dwarf structure and evolution; white dwarf mass distribution and luminosity function; white dwarfs in stellar clusters and the galactic halo; white dwarfs in large surveys; atmospheres, abundances and magnetic fields; white dwarf dust disks and planetary systems; white dwarfs in binaries; and variable white dwarfs.
It lies in a sphere above the Milky Way known as the galactic halo.
Essentially, the HaloSat will measure the intense X-rays emanating out of gas heated up to a whopping 2 million degrees Celsius (3.6 million degrees Fahrenheit) in the galactic halo. Unlike other X-ray telescopes, it will capture a wider view of the halo - approximately 100 square degrees at a time - and use the data collected to confirm if it's spherical or shaped like a fried egg.
According to the study, J0815+4729 is a main-sequence star located in Galactic Halo, some 7,500 light years from the center of the Milky Way and about 32,600 light years away from the Earth.
Related to the likes of Xaar, Galactic Halo's paddock value would rise if she could get her head in front on the racecourse and she was not too far off on her debut.
The presently running DAMA/LIBRA [1-11] experiment, as the former DAMA/NaI [12-41], has the main aim to investigate the presence of DM particles in the galactic halo by exploiting the model independent DM annual modulation signature (originally suggested in [42, 43]).
Its orbit carries it down through the plane of our galaxy from the ancient halo of stars that encircle the Milky Way, and will eventually slingshot back to the galactic halo.