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