Dark halos and Tully–Fisher relation testing modified gravity

In this paper, we involve the galactic halo observational data to test the weak field General Relativity involving the cosmological constant. By using the data for 15 hydrogen (Hi) VLA super spirals and the Tully–Fisher relation, we obtain constraints for each galaxy. The results are consistent with previous results for spiral galaxies, as well as with the scaling relations for the halos, thus confirming the efficiency of the use of dark halo data and Tully–Fisher relation, including the baryonic Tully–Fisher index (BTFR), for testing modified gravity models.

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Publication Details

Journal
Modern Physics Letters A
Published
2024-08-23
DOI
https://doi.org/10.1142/s0217732324501141
Primary Topic
Cosmology and Gravitation Theories
Type
article
Field-Weighted Citation Impact
0.00

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article

Dark halos and Tully–Fisher relation testing modified gravity

S. Sargsyan, A. Amekhyan
Modern Physics Letters A
Cosmology and Gravitation Theories
article

Dark halos and Tully–Fisher relation testing modified gravity

S. Sargsyan, A. Amekhyan
article en

Abstract

In this paper, we involve the galactic halo observational data to test the weak field General Relativity involving the cosmological constant. By using the data for 15 hydrogen (Hi) VLA super spirals and the Tully–Fisher relation, we obtain constraints for each galaxy. The results are consistent with previous results for spiral galaxies, as well as with the scaling relations for the halos, thus confirming the efficiency of the use of dark halo data and Tully–Fisher relation, including the baryonic Tully–Fisher index (BTFR), for testing modified gravity models.

Modern Physics Letters AVol. 39(25n26)
A. Alikhanyan National Laboratory (AM), Yerevan State University (AM)
Armenian National Science and Education Fund
Openalex Percentile: Top 89%
Cosmology and Gravitation Theories
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