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Black holes in galactic nuclei - Figure 1

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Observed nuclear gas kinematics for M87. William Herschel Telescope (WHT) ground-based data [R9] (middle three curves) already revealed rapid gas motions and rotation, that are well fitted by a seeing-convolved model with a few billion solar mass black hole (solid curves). The higher resolution HST data obtained later by Harms et al. (1994) (upper and lower curves), have made the case for a BH unambiguous.
Nuclear spectra for M87



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Last modified December 8, 1998.
Roeland van der Marel, marel@stsci.edu.
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