में बचाया:
| मुख्य लेखकों: | , , |
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| स्वरूप: | Preprint |
| प्रकाशित: |
2026
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| विषय: | |
| ऑनलाइन पहुंच: | https://arxiv.org/abs/2601.01715 |
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| _version_ | 1866911410428051456 |
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| author | Yoon, Youngsub Han, Sanghyeon Hwang, Ho Seong |
| author_facet | Yoon, Youngsub Han, Sanghyeon Hwang, Ho Seong |
| contents | We apply Modified Newtonian Dynamics (MOND) and Verlinde's emergent gravity separately to calculate the radial accelerations in 23 dwarf spheroidals. Then, we compare them with the observed radial accelerations. In our earlier work, we determined that, when the data set is considered in its entirety without isolating individual dwarf spheroidal, Verlinde's emergent gravity is in close agreement with the observed values. In the present work, we additionally confirm that, for 21 of the 23 samples examined, Verlinde's emergent gravity follows the trend of the observed values within each dwarf spheroidal more closely than MOND. Combining the statistical significance of all the 23 samples, ranging from $-0.25σ$ to 3.41$σ$, we conclude that Verlinde's emergent gravity is favored over MOND at 5.2$σ$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_01715 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Comparison of MOND and Verlinde's emergent gravity in dwarf spheroidals Yoon, Youngsub Han, Sanghyeon Hwang, Ho Seong General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies We apply Modified Newtonian Dynamics (MOND) and Verlinde's emergent gravity separately to calculate the radial accelerations in 23 dwarf spheroidals. Then, we compare them with the observed radial accelerations. In our earlier work, we determined that, when the data set is considered in its entirety without isolating individual dwarf spheroidal, Verlinde's emergent gravity is in close agreement with the observed values. In the present work, we additionally confirm that, for 21 of the 23 samples examined, Verlinde's emergent gravity follows the trend of the observed values within each dwarf spheroidal more closely than MOND. Combining the statistical significance of all the 23 samples, ranging from $-0.25σ$ to 3.41$σ$, we conclude that Verlinde's emergent gravity is favored over MOND at 5.2$σ$. |
| title | Comparison of MOND and Verlinde's emergent gravity in dwarf spheroidals |
| topic | General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2601.01715 |