Abstract:The selective light absorption in space has been raised in astronomical literature. The substance producing the absorption must have some mass; thus the question is how large it is. We develop a dynamical model of the Milky Way system, assuming that it can be represented by a flattened ellipsoid of rotation. We use the spatial distribution of δ-Cephei and Algol type variable stars, and mean velocities of stars according to Campbell to calculate the dynamical density of the Milky Way near the Sun, 0.100 M ⊙ /pc… Show more
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