This paper uses the starlight to derive a rotation-curve semiamplitude (that is, typical orbital velocity) which is nearly constant at 300 km/s from projected radii 1-2.5 arcminutes. That agrees well with the H-alpha gas measurements by Rubin et al. , whose data extend to 3 arcminutes on the eastern side of the disk.
Thread: Sombrero Galaxy speed.  |
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Started 2 months, 2 weeks ago by Albion
Does anyone know how fast the outer ring of the Sombrero Galaxy orbits the central bulge?
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