SUBPARSEC-SCALE STRUCTURE AND EVOLUTION OF CENTAURUS-A (NGC5128)

被引：6

作者：

JAUNCEY, DL

TINGAY, SJ

PRESTON, RA

REYNOLDS, JE

LOVELL, JEJ

MCCULLOCH, PM

TZIOUMIS, AK

COSTA, ME

MURPHY, DW

MEIER, DL

JONES, DL

AMY, SW

BIGGS, JD

BLAIR, DG

CLAY, RW

EDWARDS, PG

ELLINGSEN, SP

FERRIS, RH

GOUGH, RG

HARBISON, P

JONES, PA

KING, EA

KEMBALL, AJ

MIGENES, V

NICOLSON, GD

SINCLAIR, MW

VANOMMEN, T

WARK, RM

WHITE, GL

机构：

[1] MT STROMLO & SIDING SPRING OBSERV,CANBERRA,ACT 2611,AUSTRALIA

[2] CALTECH,JET PROP LAB,PASADENA,CA 91109

[3] UNIV TASMANIA,HOBART,TAS 7001,AUSTRALIA

[4] UNIV WESTERN AUSTRALIA,NEDLANDS,WA 6009,AUSTRALIA

[5] UNIV SYDNEY,SYDNEY,NSW 2006,AUSTRALIA

[6] CURTIN UNIV TECHNOL,PERTH,WA 6001,AUSTRALIA

[7] UNIV ADELAIDE,ADELAIDE,SA 5001,AUSTRALIA

[8] BRITISH AEROSP PLC,CANBERRA,ACT 2601,AUSTRALIA

[9] UNIV WESTERN SYDNEY NEPEAN,KINGSWOOD,NSW 2747,AUSTRALIA

[10] HARTEBEESTHOEK RADIO ASTRON OBSERV,KRUGERSDORP 1740,SOUTH AFRICA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1995年 / 92卷 / 25期

关键词：

D O I：

10.1073/pnas.92.25.11368

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 approximate to 50 milliarcseconds in extent, or at the 3.5-megaparsec distance of NGC5128, approximate to 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.

引用

页码：11368 / 11370

页数：3

共 20 条

[1] LONG-TERM RADIO OBSERVATIONS OF THE NUCLEUS OF NGC-5128 (CENTAURUS-A) [J].