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The Evidence for the Accelerating Universe: Endorsement and Robust Consistency

Guralp, Genco (2020) The Evidence for the Accelerating Universe: Endorsement and Robust Consistency. [Preprint]

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Abstract

The 2011 Nobel Prize in Physics was awarded to researchers from the Supernova Cosmology Project and the High-z Supernova Search Team for the discovery of the accelerating expansion of the universe. In this paper, I provide a historical analysis of the supernova cosmology evidence put forward by these teams for the accelerating universe, in terms of an iterative model of scientific progress developed by Hasok Chang in the context of his study of the development of measurement standards. I argue, using the key concept of epistemic iteration, that the iterative model adequately accounts for evidence production in experimental science as well. In order to apply Chang’s model to the experimental evidence for the accelerating universe, I introduce the concept of endorsement as a particular mode of progress, and argue that supernova scientists produced an endorsed measurement system to claim evidence for their discovery. Furthermore, I show that the credibility of the evidence was not based on a particular measurement, rather, what proved to be decisive was the “robust consistency” of many individual results.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Guralp, Gencogguralp@sdsu.edu0000-0001-6496-4798
Additional Information: Accepted for publication in European Journal for Philosophy of Science.
Keywords: supernova cosmology, epistemic iteration, evidence, endorsement, robustness
Subjects: General Issues > Data
Specific Sciences > Physics > Astrophysics
General Issues > Confirmation/Induction
Specific Sciences > Physics > Cosmology
General Issues > Evidence
General Issues > Experimentation
Depositing User: Dr. Genco Guralp
Date Deposited: 03 Feb 2020 03:59
Last Modified: 03 Feb 2020 03:59
Item ID: 16875
DOI or Unique Handle: https://doi.org/10.1007/s13194-020-0276-2
Subjects: General Issues > Data
Specific Sciences > Physics > Astrophysics
General Issues > Confirmation/Induction
Specific Sciences > Physics > Cosmology
General Issues > Evidence
General Issues > Experimentation
Date: 1 February 2020
URI: https://philsci-archive-dev.library.pitt.edu/id/eprint/16875

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