Open Questions: The Cosmological Constant
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See also: Dark energy 
The vacuum 
Higgs physics
Site indexes

Where can I find more information about cosmology and the
cosmological constant?
 Fairly short list, including some nonWeb references, by
Eli Michael.

The Cosmological Constant Links
 Short list, mostly dealing with cosmology in general.
Sites with general resources

The Cosmological Constant
 A May 2000 NSF "Chautauqua" Course by
Joanne Cohn.
The site contains
a
course outline, many
references, and other related
external links.

The Cosmological Constant
 Good set of pages on the subject by
Eli Michael.
Has good links to
other sites.
Surveys, overviews, tutorials

Cosmological constant
 Article from
Wikipedia.

The Cosmological Constant: Einstein's Fudge Factor
 1991 article by Sten Odenwald from Sky and Telescope

What is a Cosmological Constant?
 Brief article from the
Microwave Anisotropy Probe site.

Living With Lambda
 1998 expository paper by J. D. Cohn.
"A short pedagogical note about the consequences of a
nonzero cosmological constant in physical cosmology."

A New Cosmological Paradigm: the Cosmological Constant and Dark
Matter
 1998 expository lecture by Lawrence M. Krauss.
Technical papers

Why the cosmological constant is small and positive
 May 2006 arXiv paper (astroph/0605173) by
Paul Steinhardt
and
Neil Turok, using their "cyclic" model of cosmology to
explain the small magnitude of Λ.

The Case for a Positive Cosmological Lambdaterm
 Long technical 1999 paper presenting observational and
theoretical aspects of a small positive cosmological constant,
by Varin Sahni ahd Alexei Starobinsky.
 Accelerating the Cosmos
James Glanz
Astronomy, October 1999, pp. 4451
 Observational efforts to measure the Hubble constant now
indicate that the speed of expansion of the universe is actually
increasing. If so, this implies there is a (nonzero) "cosmological
constant" in the equations of general relativity.
 The Mystery of the Cosmological Constant
Larry Abbott
Scientific American, May 1998, pp. 106113
 The cosmological constant measures the energy content of the
vacuum. Theoretical estimates of the magnitude of the constant,
based on the conjectured physics of Higgs fields, are very far
in excess of possible values based on observation.
 Playing Cosmology's Wild Card
Ken Croswell
Astronomy, April 1997, pp. 5759
 Cosmologists since Einstein have been loath to
include a nonzero cosmological constant in the equation of
general relativity. But such a constant would imply an increase
in the rate of the expansion of the universe, hence an older
age than allowed by a constant rate of expansion.
 Donald Goldsmith  Einstein's Greatest Blunder? The Cosmological
Constant and Other Fudge Factors in the Physics of the Universe
Harvard University Press, 1995
 Provides a nontechnical description of the cosmological
constant and how it is involved in describing the structure and
evolution of the universe. Many topics in cosmology such as
the age of the universe, its average density and rate of expansion,
and dark matter are covered.
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Copyright © 2002 by Charles Daney, All Rights Reserved