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[*] STIS spectroscopy of nuclear gas disks in radio-loud, early-type galaxies
Noel-Storr J., Baum S., Verdoes Kleijn G., O'Dea C., van der Marel R.P., de Zeeuw P. T., van Gorkom J., Carollo M.
in Carnegie Observatories Astrophysics Series, Vol. 1: Coevolution of Black Holes and Galaxies, ed. L. C. Ho (Pasadena: Carnegie Observatories, http://www.ociw.edu/ociw/symposia/series/symposium1/proceedings.html), in press, 2003


We have taken long slit, medium resolution spectra of the gas disks in the nuclei of a complete sample of 21 nearby radio-loud early-type galaxies using the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope. We present our sample selection, observations and data reduction along with initial interpretations of those data. We find that the nuclei are all compatible with a single kinematic class: rotating disks with high velocity dispersions of the order of a few hundred km/s. We find broad nuclear components on the scale of 1000 km/s in 62 percent of the sample.

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Last modified March 30, 2003.
Roeland van der Marel, marel@stsci.edu.
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