Galactic Mass-to-Light Ratios With Superfluid Dark Matter

Understand

We make rotation curve fits to test the superfluid dark matter model.

• In addition to verifying that the resulting fits match the rotation curve data reasonably well, we aim to evaluate how satisfactory they are with respect to two criteria, namely, how reasonable the resulting stellar mass-to-light ratios are and whether the fits end up in the regime of superfluid dark matter where the model resembles modified Newtonian dynamics (MOND).
• We fitted the superfluid dark matter model to the rotation curves of 169 galaxies in the SPARC sample.
• We found that the mass-to-light ratios obtained with superfluid dark matter are generally acceptable in terms of stellar populations.