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Cosmological constants

LC control no.sh2006000063
LC classificationQB991.C658
Topical headingCosmological constants
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Variant(s)Cosmical constants
See alsoAstronomical constants
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Constants of integration
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Found inWork cat.: Sherman, W.L. Zero-density cosmological models and their applicability to the observed universe, 1965: p. 1 (A review of relativistic models of the universe and materials relating to the cosmical constant showed that this term is a constant of integration and should be retained as a necessary term in the field equations of general relativity)
Hopkins, J. Glossary of astronomy and astrophysics, 1976 (cosmological constant ([Lambda]) (also called cosmical constant) -- a term introduced by Einstein in his field equations to permit a static, homogeneous model of the Universe)
Dictionary of geophysics, astrophysics, and astronomy, 2001 (cosmological constant -- a constant (usually denoted [Lambda]) that measures the curvature of an empty space devoid of gravitational fields ... the constant is routinely taken into account in solving Einstein's equations [of general relativity])
Facts on file dictionary of astronomy, 2000: p. 94 (The cosmological constant is an arbitrary constant. Although it is possible for it to have any value that does not conflict with observation, it is highly probable that it is close to zero)
Pittsburgh Teachers Institute WWW site, Dec. 28, 2005: PTI curriculum units online/Everything you wanted to know about the universe (Martin Rees, in his book, Just six numbers, establishes the six cosmological constants that determine the nature of our universe)
Astronomy knowledge base, via WWW, Dec. 28, 2005 (Kinds of astronomical constants : cosmological constant, deceleration parameter, Hubble constant, etc.)