Milgromian dynamics and dwarf galaxies in galactic voids |
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| Authors: | Mahdi Khadem Hosein Haghi |
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| Institution: | 1.Institute for Advanced Studies in Basic Sciences (IASBS),Zanjan,Iran |
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| 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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