Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,904,461,098 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

galactic halo

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.

galactic halo

In astronomy, a nearly spherical volume of thinly scattered stars, globular clusters, and tenuous gas observed surrounding spiral galaxies. It may extend far beyond the disk and contain most of the galaxy's mass. The halo of the Milky Way Galaxy is thought to have a radius greater than 100,000 light-years and to be predominantly composed of dark matter.

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.
Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link 		Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
The data show, with very high confidence level, agreement with all the features expected for the presence of dark matter particles in the galactic halo," Bernabei says.
Battle over WIMPs goes another round: claimed dark matter find ... by Cowen, Ron / Science News
It lies in a sphere above the Milky Way known as the galactic halo.
Star killer is found by The Mirror (London, England)
Topics include opacity in the transition region of cool dwarfs, hot gas in the galactic halo, phosphorous in the diffuse ISM, and the scientific rationale for a ten meter UV-optical telescope.
Astrophysics in the Far Ultraviolet: Five Years of Discovery with ... by SciTech Book News
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.