Research Article

Bose-Einstein Condensate Dark Matter Halos Confronted with Galactic Rotation Curves

Table 2

The best fit parameters and the minimum values () of the statistics for the HSB I and II galaxies (the first and last three galaxies, respectively). Columns 2–5 give the BEC model parameters (radius and central density of the BEC halo) and the corresponding baryonic parameters (mass-to-light ratio of the bulge and total mass of the disk ). Columns 7–10 give the NFW model parameters (scale radius and characteristic density of the halo) and the corresponding baryonic parameters (mass-to-light ratio of the bulge and total mass of the disk ). The 1 confidence levels are shown in the last column (these are the same for both models). For HSB I galaxies the two models give similar values (within 1 confidence level); however in case of HSB II galaxies with extended flat regions, the NFW model fits better the rotation curves. The values in the case of BEC model are outside the 1 confidence level for HSB II galaxies.

Galaxy (BEC) (BEC) (BEC) (NFW) (NFW) (NWF)
 kg/m3 kg/m3

ESO215G390.35.613.82.023.070.63.8418714.722.2234.18
ESO322G771.65.10.889.09.152.53.7970987.6911.53
ESO509G801.448.749.71.212.520.9112280033.4836.3

ESO323G252.512.182.511.8222.7469.43436680.5566.74
ESO383G020.138.773.05.748.831.76.324594.223.347.9
ESO446G010.612.774.65.986.021.46.77864.143.3744.74