Abstract
We use kinematic data of 103 dwarf galaxies, obtained from the Sloan Digital Sky Survey catalog, to test the Milgromian dynamics (MOND) inside a galactic void. From this data, we compute the line-of-sight velocity dispersions of the dwarf galaxies in the frameworks of MOND and Newtonian dynamics without invoking any dark matter. The prediction for the line-of-sight velocity dispersions from MOND of 53 selected dwarf galaxies is compared with their measured values. For appropriate mass-to-light ratios in the range 1 to 5 for each individual dwarf galaxy, our results for the line-of-sight velocity dispersions predicted by MOND are more compatible with observations than those predicted by Newtonian dynamics.
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Acknowledgements
We are immensely grateful to Sareh Ataiee for her comments on an earlier version of the manuscript and M.M. Motiei, B.Z. Rameshti, and H. Moshafi for technical assistance. We also thank Saeed Tavassoli for providing his data.
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Khadem, M., Haghi, H. Milgromian dynamics and dwarf galaxies in galactic voids. Astrophys Space Sci 363, 107 (2018). https://doi.org/10.1007/s10509-018-3324-z
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DOI: https://doi.org/10.1007/s10509-018-3324-z