White dwarfs as quantum crystals
Article Abstract:
A quantum model for the crystallization of white dwarf stars' interiors is more satisfactory than the the classical one-component plasma or binary ionic mixtures models. White dwarfs represent the last phase of stellar evolution when the heavy elements form into crystal lattices inside the stars. A new analysis shows that quantum effects influence how quickly the dwarf stars lose heat. This finding is important because the dwarfs stars' cooling bears on attempts to estimate the galaxy's age and to explain type 1 supernovae and neutron stars.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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Ecology of globular clusters
Article Abstract:
Globular clusters, which are massed concentrations each consisting of about 500,000 stars, have been found to originate, grow and pass away at a predictable rate. Piet Hut and S. Djorgovski deduced the rate by examining statistical data from clusters within the Milky Way Galaxy that have not yet reached the point of core-collapse. In addition, presentations at two workshops on globular clusters underscored the conclusion that internal and external gravitational and dynamical factors affect how the clusters change over time.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
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