Fig. 3.
Resulting thickness of the stellar disk as a function of radius. When σs falls off at a rate of 3.2RD, the HWHM values follow the trend of the given data, while results for an exponential fall-off at a rate of 2RD give a decrease with radius. From 5.82 kpc it starts to increase because there the velocity dispersion becomes equal to σHI and is therefore kept constant thereafter.
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