Gas Disks and Supermassive Black Holes in Nearby Radio Galaxies

UGC 1841 This elliptical galaxy has a nuclear dust disk (b/a ∼ 0.98). It has a
core-jet radio morphology on VLBA and VLA scales. The STIS slits were aligned
parallel to the galaxy major axis. The central kinematic and flux properties are listed
in Table 3.10; the gas does not exhibit a regular rotation profile. The fit to the central
spectrum is improved by the addition of a broad component. Data for this galaxy
are shown in Figure 3.7 (see key in Figure 3.1 for an explanation of these plots).
NGC 2329 (UGC 3695) This S0 galaxy has a nuclear dust disk (b/a = 0.68).
It has a core-jet radio morphology on VLBA and VLA scales. The STIS slits were
aligned parallel to the galaxy major axis. The central kinematic and flux properties
are listed in Table 3.11; the gas does not exhibit a regular rotation profile. The
fit to the central spectrum is improved by the addition of a broad component which
appears to represent a non-flat continuum in this case. Data for this galaxy are shown
in Figure 3.8 (see key in Figure 3.1 for an explanation of these plots).
NGC 2892 (UGC 5073) This elliptical galaxy has no apparent nuclear dust. It
has a radio core on VLBA scales and a twin-jet morphology on VLA scales. The
STIS slits were aligned approximately parallel to the galaxy major axis, however a
certain degree of freedom was allowed in slit placement to allow reasonable observing
72