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stellar population

   Also found in: Wikipedia 0.01 sec.
stellar population [′stel·ər ‚päp·yə′lā·shən]
(astronomy)
Either of two classes of stars, termed population I and population II; population I are relatively young stars, found in the arms of spiral galaxies, especially the blue stars of high luminosity; population II stars are the much older, more evolved stars of lower metallic content; many high luminosity red giants and many variable stars are members of population II.
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Stellar Population Gradients and Dust Extinction in Disk Galaxies at Intermediate Redshifts in the Hubble Deep Field * Groundstate OH masers associated with Herbig-Haro objects.
University of South Africa: Department of Mathematical Sciences--2008 ... by Monthly Notes of the Astronomical Society of Southern Africa
Observations from NASA's infrared Spitzer Space Telescope and the visible-light WIYN telescope atop Kitt Peak in Arizona show that the plume contains old, red stars--exactly the type expected to make up the main stellar population in old elliptical galaxies.
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The factors that contribute to this mediocre ranking are relatively high levels of overall health spending, less than stellar population health outcomes, and relatively poor access to care among those lacking health insurance.
Healthy Competition: What's Holding Back Health Care and How to Free ... by Ohsfeldt, Robert L. / Independent Review
 
 
 
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