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).
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School of Physics and Astronomy (COS)
Kleijn, Gijs; de Zeeuw, P. Tim; Baum, Stefi; and O'Dea, Christopher, "The nuclei of nearby radio-loud ellipticals" (2001). Accessed from
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