3cm Observations of the Extended NW radio Jet in Pictor A

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Session 11 -- Luminous AGN and QSOs
Display presentation, Monday, 30, 1994, 9:20-6:30

[11.04] 3cm Observations of the Extended NW radio Jet in Pictor A

S. M. Simkin (Mich State), E. M. Sadler (Sydney U), R. Sault (ATNF )

We present high--resolution, 3\,cm radio synthesis images of Pictor A constructed from four 12--hour sets of observations with the ATCA (Australia Telescope Compact Array). We find that the kiloparsec--scale radio jet located between the nucleus and the NW radio--optical hotspot, which lies more than 100\,kpc from the central galaxy, has an unresolved width ($\sim$ 1 \arcsec \, or 500 $h^{-1}$\,pc). This jet is not completely straight, but changes direction between RA 5h\,20m\,35s and 5h\,20m\,40s. The SE and NW hotspots are not alligned with the nucleus. The eastern segment of the unresolved jet points towards the nucleus while the western segment, if extended to the east, intersects the SE hotspot. Near the central host galaxy, the 3\,cm continuum structure seems to be closely related to loops of ionized, H\,II gas (on a 2 to 4\,kpc scale).

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