A Spectropolarimetric Study of Pictor A Radio Galaxy with MeerKAT
arxiv(2024)
摘要
We present the results of a polarimetric study from our new high-sensitivity
L-band (0.8–1.7 GHz) observation of Pictor A with the MeerKAT radio telescope.
We confirm the presence of the radio jet extending from the nucleus to the
western hotspot of this source. Additionally, we show the radio emission
expected to be coincident with previously observed X-ray emission in the radio
lobes, confirming that the emission mechanism is of inverse Compton origin, as
suggested by a previous study. Our spectropolarimetric analysis using the
RM-Synthesis technique reveals a relatively uniform mean RM distribution across
the lobes of Pictor A, with most lines-of-sight exhibiting single-peaked
Faraday spectra. However, a number of the lines-of-sight exhibit single peaked
spectra with a wide base or multiple peaks, suggesting the presence of multiple
Faraday components or a Faraday thick structure along Pictor A's
lines-of-sight. We also confirm the asymmetry in RM variability and
depolarization between the two lobes of this source which were reported in a
previous study.
更多查看译文
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要