在 Abell 1060 中发现弥漫射电源

IF 2.2 4区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Publications of the Astronomical Society of Japan Pub Date : 2024-02-24 DOI:10.1093/pasj/psae011

Kohei Kurahara, Takuya Akahori, Aika Oki, Yuki Omiya, Kazuhiro Nakazawa

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引用次数: 0

摘要

星系团内部介质（ICM）中的非热成分，如湍流、磁场和宇宙射线，都是成员星系的活动星系核（AGN）喷流过去和现在的能量活动以及星系团合并造成的扰动的印记。通过对同步辐射的米级和厘米级无线电观测，我们可以诊断出其中的非热辐射成分。我们在这里报告我们在靠近 Abell 1060 星场中心的地方发现了一个名为 "飞狐 "的不明漫射源。飞狐有一个拉长的环状结构和一个中心条形结构，但没有明显的宿主星系。飞狐的平均光谱指数为-1.4，比米波射电源的光谱指数陡峭。我们讨论了射电裂片、凤凰、射电光环和遗迹以及奇异射电圈的可能性。总之，"飞狐 "并不能用已知的射电源清楚地解释。

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Discovery of diffuse radio source in Abell 1060

Non-thermal components in the intra-cluster medium (ICM), such as turbulence, magnetic field, and cosmic rays, imprint the past and current energetic activities of jets from active galactic nuclei (AGN) of member galaxies as well as disturbance caused by galaxy cluster mergers. Meter- and centimeter-radio observations of synchrotron radiation allow us to diagnose the nonthermal component. Here we report on our discovery of an unidentified diffuse radio source, named the Flying Fox, near the center of the Abell 1060 field. The Flying Fox has an elongated ring-like structure and a central bar shape, but there is no obvious host galaxy. The average spectral index of the Flying Fox is −1.4, which is steeper than that for radio sources seen at meter wavelengths. We discussed the possibilities of radio lobes, phoenixes, radio halos and relics, and an odd radio circle. In conclusion, the Flying Fox is not clearly explained by known radio sources.

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来源期刊

Publications of the Astronomical Society of Japan 地学天文-天文与天体物理

CiteScore

4.10

自引率

13.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Publications of the Astronomical Society of Japan (PASJ) publishes the results of original research in all aspects of astronomy, astrophysics, and fields closely related to them.