Hot SPOT 3C20 west: an optical synchrotron source

Details Hot SPOT 3C20 west: an optical synchrotron source Hot SPOT 3C20 west: an optical synchrotron source

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...286...25h&link_type=abstract

Astronomy and Astrophysics 286, 25-36 (1994)

Astronomy and Astrophysics

Astrophysics

11

Polarization, Techniques: Polarimetry, Galaxies: Active, Jets, 3C 20, Radio Continuum: Galaxies

Scientific paper

We report optical and radio observations of the double-lobed radio galaxy 3C20. The compact radio hot spot in the western lobe also emits optical synchrotron radiation and field polarimetry with a Savart plate shows it to be (49+/-7)% polarized. The eastern hot spot is not detected optically. New VLA observations at wavelengths of 6 and 2cm and with resolutions of 0.14" and 0.40" are also presented. A radio core is detected for the first time. We present spectral index maps for both hot spots and discuss their physics.

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