THE COMPACT SPIRAL-LIKE RADIO STRUCTURE OF THE QUASAR 3C 119

被引:0
|
作者
NAN, RD
SCHILIZZI, RT
VANBREUGEL, WJM
FANTI, C
FANTI, R
MUXLOW, TWB
SPENCER, RE
机构
[1] CHINESE ACAD SCI, BEIJING OBSERV, BEIJING, PEOPLES R CHINA
[2] UNIV CALIF BERKELEY, RADIO ASTRON LAB, BERKELEY, CA 94720 USA
[3] IST RADIOASTRON, I-40126 BOLOGNA, ITALY
[4] DIPARTIMENTO ASTRON, I-40126 BOLOGNA, ITALY
[5] UNIV MANCHESTER, JODRELL BANK, MACCLESFIELD SK11 9DL, CHESHIRE, ENGLAND
关键词
RADIO SOURCES; QUASARS; VLBI;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The compact steep spectrum radio source, 3C 119, has been mapped at 18 cm with a resolution of 5 mas using a 10-station global VLBI network combined with MERLIN. The resulting high dynamic range image reveals a complex spiral-like structure in which a number of components are embedded. The overall physical extent of the source is approximately 300 pc. These new observations demonstrate that the structure is even more complex than had been derived earlier by Fanti et al. (1986). The physical conditions in the source are re-evaluated, and the radio structure is briefly discussed in terms of three models: non-relativistic and relativistic precessing jets, and a jet deflected by the walls of a cavity in the interstellar medium.
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收藏
页码:449 / 453
页数:5
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