Optical structures of the M87 and 3C 273 jets

Details Optical structures of the M87 and 3C 273 jets Optical structures of the M87 and 3C 273 jets

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...138...49l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 138, no. 1, Sept. 1984, p. 49-56.

Astronomy and Astrophysics

Astrophysics

39

Astronomical Photometry, Galactic Nuclei, Light Emission, Plasma Jets, Quasars, Brightness Distribution, Electronography, High Resolution, Image Resolution, Plasma Oscillations, Telescopes

Scientific paper

New high-resolution observations of the M87 and 3C 273 jets made with a wide-field electronographic camera are presented which reveal new features in the optical structures of these jets. M87 shows evidence of a bent nuclear extension and oscillations in the inner part of the jet, as well as a faint continuous constant component between the inner knots. For 3C 273, the plates show large-scale oscillations with at least three well-defined knots, two small extensions at the inner and outer ends of the jet at a 120 deg angle with the main jet, and a faint elongated feature continuing the jet inwards. The 3C 273 jet shows different structure at radio and optical wavelengths, especially the lack of a strong outward luminosity gradient in the optical. A precessing nucleus emitting a continuous fluid beam is discussed in detail as a possible mechanism for both jets.

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