The knotty question of the jet of PKS B1421-490

Gelbord, J M; Marshall, H L; Worrall, D M; Birkinshaw, M; Lovell, J E J; Ojha, R; Godfrey, Leith; Schwartz, D A; Perlman, E S; Georganopolous, M; Murphy, D W; Jauncey, David L

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The knotty question of the jet of PKS B1421-490

Date

2005

Authors

Gelbord, J M

Marshall, H L

Worrall, D M

Birkinshaw, M

Lovell, J E J

Ojha, R

Godfrey, Leith

Schwartz, D A

Perlman, E S

Georganopolous, M

Publisher

IOP Publishing

Abstract

We report the discovery of unusually strong optical and X-ray emission associated with a knot in the radio jet of PKS B1421-490. The knot is the brightest feature observed beyond the radio band, with knot/core flux ratios ∼300 and 3.7 at optical and X-r