Dark matter The LS has a total mass M ≈ 1015 and a total optical luminosity L ≈ 3 . This yields a mass-to-light ratio of about 300 times that of the solar ratio (/ = 1), a figure that is consistent with results obtained for other superclusters. By comparison, the mass-to-light ratio for the Milky Way is 63.8 assuming a solar absolute magnitude of 4.83, a Milky Way absolute magnitude of −20.9, and a Milky Way mass of . These ratios are one of the main arguments in favor of the presence of large amounts of dark matter in the universe; if dark matter did not exist, much smaller mass-to-light ratios would be expected.
Dark matter The LS has a total mass M ≈ 1015 and a total optical luminosity L ≈ 3 . This yields a mass-to-light ratio of about 3.00 times that of the solar ratio (/ = 1), a figure that is consistent with results obtained for other superclusters. By comparison, the mass-to-light ratio for the Milky Way is 63.8 assuming a solar absolute magnitude of 4.83, a Milky Way absolute magnitude of −20.9, and a Milky Way mass of . These ratios are one of the main arguments in favor of the presence of large amounts of dark matter in the universe; if dark matter did not exist, much smaller mass-to-light ratios would be expected