We have observed a complete sample of 21 nearby (D<70h^−1Mpc) Fanaroff & Riley Type I galaxies with HST/WFPC2 and detected dust disks and lanes in 19 of them. The radio jets are roughly perpendicular to the dust which is used to constrain the Doppler boosting factors of the radio jet and cores. The VLBA core flux correlates with the central H-alpha+[NII] flux which might indicate that the VLBA core is dominated by an isotropic component. Twelve galaxies show nuclear optical sources. We discuss various possible origins for this emission (Refer to PDF file for exact formulas).

Date of creation, presentation, or exhibit



International Astronomical Union Symposium 205 (2001) 62 Also archived in: arXiv: astro-ph/0012126 v1 6 Dec 2000 Published in: Galaxies and their Constituents at the Highest Angular Resolutions, Proceedings of IAU Symposium #205, held 15-18 August 2000 at Manchester, United Kingdom. Eds. R.T. Schilizzi, S.N. Vogel, F. Paresce & M.S. Elvis. ISBN: 1-58381-066-8Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type

Conference Proceeding

Department, Program, or Center

School of Physics and Astronomy (COS)


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