The Cygnus X-3 radio jets at arcsecond scales

被引:30
作者
Martí, J
Paredes, JM
Peracaula, M
机构
[1] Univ Jaen, Escuela Politecn Super, Dept Fis, E-23071 Jaen, Spain
[2] Univ Barcelona, Dept Astron & Meteorol, E-08028 Barcelona, Spain
关键词
ISM : jets and outflows; radio continuum : stars; stars : individual (Cygnus X-3); X-rays : stars;
D O I
10.1086/317858
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A deep Very Large Array map of the X-ray binary Cygnus X-3 is presented. The compact and highly variable core of the system has been carefully removed through a special subtraction process. This procedure allows us to reveal weak extended structures very close to it that otherwise would be masked by variability artifacts. In this way, we have been able to detect a symmetric pair of plasma condensations at arcsecond distances from the core. These features are very likely to be the remnants of a strong radio flare that occurred three months before our observing run. Accepting this association, the ejection velocity derived for both condensations is highly relativistic and amounts to 0.6c[D/10 kpc]. On the other hand, we also tentatively suggest that the Cygnus X-3 radio jets may be related to other larger scale symmetric radio lobes.
引用
收藏
页码:939 / 944
页数:6
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