The Nuclei of Nearby Radio-Loud Ellipticals

Details The Nuclei of Nearby Radio-Loud Ellipticals The Nuclei of Nearby Radio-Loud Ellipticals

2000-12-06

arxiv.org/abs/astro-ph/0012126v1

Astronomy and Astrophysics

Astrophysics

4 pages. Contributed talk at IAU Symposium 205: Galaxies and their Constituents at the Highest Angular Resolutions, Manchester

Scientific paper

We have observed a complete sample of 21 nearby (D < 70h^{-1} Mpc) 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 Halpha+[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.

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