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The Methodological Value of Coincidences: Further Remarks on Dark Matter and the Astrophysical Warrant for General Relativity

Vanderburgh, William L. (2004) The Methodological Value of Coincidences: Further Remarks on Dark Matter and the Astrophysical Warrant for General Relativity. In: UNSPECIFIED. (In Press)

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Abstract

This paper compares four techniques for measuring the masses of galaxies and larger astrophysical systems from their dynamics. The apparent agreement of these techniques is sometimes invoked as reason for hypothesizing the existence of huge quantities of “dark matter” as the best solution to “the dynamical discrepancy”, the 100-fold disparity between the amount of mass visible in large scale astrophysical systems and the amount calculated from dynamics. This paper argues that the agreement, though suggestive, is not definitive. The coincident measurements remain the best reason for preferring dark matter over revisions to General Relativity for solving the dynamical discrepancy, but the resulting warrant for this preference is weak.


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Item Type: Conference or Workshop Item (UNSPECIFIED)
Creators:
CreatorsEmailORCID
Vanderburgh, William L.
Keywords: Dark Matter, General Relativity, Evidence, Methodology, Theory Choice,
Subjects: General Issues > Theory Change
Specific Sciences > Physics > Cosmology
Specific Sciences > Physics > Relativity Theory
Specific Sciences > Physics
Depositing User: William Vanderburgh
Date Deposited: 22 Aug 2004
Last Modified: 07 Oct 2010 15:12
Item ID: 1905
Public Domain: No
Conference Date: November 2004
Conference Location: Austin, Texas
URI: http://philsci-archive.pitt.edu/id/eprint/1905

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