Radio polarization surveys of Centaurus A (NGC 5128). I. The complete radio source at lambda 6.3 cm.
Radio polarization surveys of Centaurus A (NGC 5128). I. The complete radio source at lambda 6.3 cm.
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半人马座 A 的无线电偏振测量 (NGC 5128)。
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
D. Jauncey
中科院分区：
文献类型：
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作者：
N. Junkes;R. Haynes;J. Harnett;D. Jauncey
本文介绍了利用帕克斯射电望远镜在6.3厘米波长、波束宽度为4. 5毫米波段对半人马座A（Cen A）进行的射电连续谱和偏振巡天。'3.最终总功率图中的均方根噪声为20 mJy/b. a。而在偏振强度图中为8 mJy/b. a.。本文介绍了观测和数据分析技术，并提出了完整的无线电源的地图。半人马座A的外射电瓣可以在天空中超过9°（或500 kpc线性距离）的范围内追踪。他们在大部分地区都有明显的两极分化。Cen A的射电连续谱形态显示出在外部射电瓣中的明显的S形结构
We present a new radio continuum and polarization survey of Centaurus A (Cen A) made with the Parkes radio telescope at 6.3 cm wavelength having a beamwidth of 4.'3. The rms noise in the final total-power map is 20 mJy/b.a. while that in the polarized-intensity map is 8 mJy/b.a.. The paper describes observations and data analysis techniques used and presents maps of the complete radio source. The outer radio lobes of Cen A can be traced over more than 9° on the sky (or 500 kpc linear distance). They are significantly polarized over most of the area. The radio continuum morphology of Cen A shows a distinct S-shaped structure in the outer radio lobes