Comparison of MOND and Verlinde's emergent gravity in dwarf spheroidals

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Authors: Youngsub Yoon, S. Han, Ho Seong Hwang
Cited by: 0

Abstract

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$σ$.

Fields of Study & Subjects

Stellar planetary and galactic studies Pulsars and Gravitational Waves Research Astronomy and Astrophysical Research

Publication details

Journal / source
arXiv (Cornell University)
Publication date
5 January 2026
Document type
Preprint