Testing CCC+TL Cosmology with Galaxy Rotation Curves Article Swipe
This paper aims to explore whether astrophysical observations, primarily galaxy rotation curves, result from covarying coupling constants (CCC) rather than from dark matter. We have shown in earlier papers that cosmological observations, such as supernovae type 1a (Pantheon+), the small size of galaxies at cosmic dawn, baryon acoustic oscillations (BAO), the sound horizon in the cosmic microwave background (CMB), and time dilation effect, can be easily accounted for without requiring dark energy and dark matter when coupling constants are permitted to evolve in an expanding Universe, as predicted by Dirac, and the redshift is considered jointly due to the Universe’s expansion and Zwicky’s tired light (TL) effect. Here, we show that the CCC parameter α is responsible for generating the illusion of dark matter and dark energy, which we call α-matter and α-energy, and is influenced by the baryonic matter density distribution. While cosmologically α is a constant determined for the homogenous and isotropic Universe, e.g., by fitting Pantheon+ data, it can vary locally due to the extreme anisotropy of the matter distribution. Thus, in high baryonic density regions, one expects α-matter and α-energy densities to be relatively low and vice versa. We present its application to a few galaxy rotation curves from the SPARC database and find the results promising.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/galaxies13050108
- https://www.mdpi.com/2075-4434/13/5/108/pdf?version=1757684549
- OA Status
- gold
- Cited By
- 1
- References
- 85
- OpenAlex ID
- https://openalex.org/W4414184268
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https://openalex.org/W4414184268Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/galaxies13050108Digital Object Identifier
- Title
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Testing CCC+TL Cosmology with Galaxy Rotation CurvesWork title
- Type
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articleOpenAlex work type
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-09-12Full publication date if available
- Authors
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Rajendra P. GuptaList of authors in order
- Landing page
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https://doi.org/10.3390/galaxies13050108Publisher landing page
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https://www.mdpi.com/2075-4434/13/5/108/pdf?version=1757684549Direct link to full text PDF
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goldOpen access status per OpenAlex
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- Cited by
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1Total citation count in OpenAlex
- Citations by year (recent)
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2025: 1Per-year citation counts (last 5 years)
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85Number of works referenced by this work
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| corresponding_author_ids | https://openalex.org/A5005324687 |
| countries_distinct_count | 1 |
| institutions_distinct_count | 1 |
| corresponding_institution_ids | https://openalex.org/I153718931 |
| citation_normalized_percentile.value | 0.89154112 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | True |