Galaxy Rotation Curves Disfavor Traditional and Self-interacting Dark Matter Halos, Preferring a Disk Component or Einasto Function

We use the galaxy rotation curves in SPARC database to compare 9 different dark matter and modified gravity models on an equal footing, paying special attention stellar mass-to-light ratios. three non-interacting models, a self interacting DM (SIDM) model, two hadronically (HIDM) Newtonian dynamics type models: MOND, Radial Acceleration Relation (RAR) maximal-disk model. The with DM-gas interactions generate disky component matter, which significantly improves fits compared all other except Einasto halo; MOND-type give worse fits.