•Merritt (1987)
analysis:
–Assuming constant M/L
ratio, then mass is 1.79 x 1015h-1 solar masses, and M/L is 350
h-1 in solar
units (think about that!).
–Typical M/L for
ellipticals is 15 in solar units.
–Differ by a factor of
20
–
•Why should the dark
matter have the same distribution as the light?
•Why should the
velocities even be isotropic?