VLBI imaging at 4.9-43.2 GHz resolves symmetric parabolically expanding twin jets in 3C 452 to a few thousand Schwarzschild radii, with low Doppler factors indicating a viewing angle of about 70 degrees.
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The twin-jet system in the FRII radio galaxy 3C 452: A sub-parsec scale VLBI study
VLBI imaging at 4.9-43.2 GHz resolves symmetric parabolically expanding twin jets in 3C 452 to a few thousand Schwarzschild radii, with low Doppler factors indicating a viewing angle of about 70 degrees.