title: Subparsec-scale structure and evolution of Centaurus A (NGC5128).
abstract: We present a series of 8.4-GHz very-long-baseline radio interferometry images of the nucleus of Centaurus A (NGC5128) made with a Southern Hemisphere array, representing a 3.3-year monitoring effort. The nuclear radio jet is approximately 50 milliarcseconds in extent, or at the 3.5-megaparsec distance of NGC5128, approximately 1 parsec in length. Subluminal motion is seen and structural changes are observed on time scales shorter than 4 months. High-resolution observations at 4.8 and 8.4 GHz made in November 1992 reveal a complex morphology and allow us to unambiguously identify the self-absorbed core located at the southwestern end of the jet.
authors.forename: D L
authors.initials: DL
authors.lastname: Jauncey
authors.forename: S J
authors.initials: SJ
authors.lastname: Tingay
authors.forename: R A
authors.initials: RA
authors.lastname: Preston
authors.forename: J E
authors.initials: JE
authors.lastname: Reynolds
authors.forename: J E
authors.initials: JE
authors.lastname: Lovell
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authors.initials: PM
authors.lastname: McCulloch
authors.forename: A K
authors.initials: AK
authors.lastname: Tzioumis
authors.forename: M E
authors.initials: ME
authors.lastname: Costa
authors.forename: D W
authors.initials: DW
authors.lastname: Murphy
authors.forename: D L
authors.initials: DL
authors.lastname: Meier
authors.forename: D L
authors.initials: DL
authors.lastname: Jones
authors.forename: S W
authors.initials: SW
authors.lastname: Amy
authors.forename: J D
authors.initials: JD
authors.lastname: Biggs
authors.forename: D G
authors.initials: DG
authors.lastname: Blair
authors.forename: R W
authors.initials: RW
authors.lastname: Clay
authors.forename: P G
authors.initials: PG
authors.lastname: Edwards
authors.forename: S P
authors.initials: SP
authors.lastname: Ellingsen
authors.forename: R H
authors.initials: RH
authors.lastname: Ferris
authors.forename: R G
authors.initials: RG
authors.lastname: Gough
authors.forename: P
authors.initials: P
authors.lastname: Harbison
authors.forename: P A
authors.initials: PA
authors.lastname: Jones
authors.forename: E A
authors.initials: EA
authors.lastname: King
authors.forename: A J
authors.initials: AJ
authors.lastname: Kemball
authors.forename: V
authors.initials: V
authors.lastname: Migenes
authors.forename: G D
authors.initials: GD
authors.lastname: Nicolson
authors.forename: M W
authors.initials: MW
authors.lastname: Sinclair
authors.forename: T
authors.initials: T
authors.lastname: Van Ommen
authors.forename: R M
authors.initials: RM
authors.lastname: Wark
authors.forename: G L
authors.initials: GL
authors.lastname: White