The Dark Matter Halo Density Profile, Spiral Arm Morphology, and Supermassive Black Hole Mass of M33

Table 2

M33 rotation curve modeling results, showing the best-fitting NFW and pseudoisothermal models.

Parameter	NFW model
𝑀vir	(2.2±0.1)×10^11M⊙
𝑐vir	4.0±1.0
𝜒^2/𝜇	1.18
Parameter	Core model
𝑅𝑐	1.39±0.04 kpc
𝑉(∞)	105.4±6.1 km s^−1
𝜒^2/𝜇	3.19