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Article

Is it no Longer Necessary to Test Cosmologies with Type Ia Supernovae?

1
Unidad Académica de Matemáticas, Universidad Autónoma de Zacatecas, Zacatecas 98000, ZAC, Mexico
2
Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India
*
Author to whom correspondence should be addressed.
Universe 2018, 4(6), 73; https://doi.org/10.3390/universe4060073
Received: 27 February 2018 / Revised: 4 June 2018 / Accepted: 13 June 2018 / Published: 19 June 2018
(This article belongs to the Special Issue Universe: Feature Papers 2018 - Gravitational Physics)
We look at the current practice of analyzing the magnitude–redshift relation from the data on Type Ia supernovae. We show that, if the main aim of such analysis were to check the validity of a cosmological model, then the recently advanced arguments do not serve the purpose. Rather, the procedure followed tells us only about the statistical significance of the internal parameters used in the model, whereas the model itself is tacitly assumed to give a good fit to the data. A statistical assessment of the procedure is given and it is argued that given the growing data, the validity of the cosmological model should be checked first rather than the spread of any internal parameters. In passing we also discuss some aspects of the Milne model in the light of the present test. View Full-Text
Keywords: magnitude–redshift relation; statistics and cosmology; Milne model magnitude–redshift relation; statistics and cosmology; Milne model
MDPI and ACS Style

Vishwakarma, R.G.; Narlikar, J.V. Is it no Longer Necessary to Test Cosmologies with Type Ia Supernovae? Universe 2018, 4, 73. https://doi.org/10.3390/universe4060073

AMA Style

Vishwakarma RG, Narlikar JV. Is it no Longer Necessary to Test Cosmologies with Type Ia Supernovae? Universe. 2018; 4(6):73. https://doi.org/10.3390/universe4060073

Chicago/Turabian Style

Vishwakarma, Ram G., and Jayant V. Narlikar. 2018. "Is it no Longer Necessary to Test Cosmologies with Type Ia Supernovae?" Universe 4, no. 6: 73. https://doi.org/10.3390/universe4060073

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