白矮星合并产物 SN 1181 的射电辐射

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

Publications of the Astronomical Society of Japan Pub Date : 2024-04-09 DOI:10.1093/pasj/psae023

Takatoshi Ko, Daichi Tsuna, Bunyo Hatsukade, Toshikazu Shigeyama

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引用次数: 0

摘要

据称历史上的超新星1181的残余物与白矮星合并残余物J005311有关。超新星残余（SNR）冲击和预计由J005311的强风形成的终止冲击是通过冲击加速电子的同步辐射产生射电辐射的潜在场所。在本文中，我们估算了来自这两个冲击的射电辐射，发现外侧SNR冲击的射电通量峰值为0.1-10 mJy（0.01-1 GHz），内侧终止冲击的射电通量峰值为0.01-0.1 mJy（1-10 GHz）。我们还在 3 GHz 的 Karl G. Jansky 超大阵列巡天、1.4 GHz 的 NRAO 超大阵列巡天和 408 MHz 的加拿大银河系巡天的档案数据中搜索了该源的射电辐射，但没有发现明显的探测结果。我们希望能有针对性地进行更高灵敏度的观测，尤其鼓励以更高的频率和角度分辨率来探测内部终止冲击及其演化。

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Radio emission from SN 1181 hosting a white dwarf merger product

The remnant of the historical supernova 1181 is claimed to be associated with a white dwarf merger remnant J005311. The supernova remnant (SNR) shock, and a termination shock expected to be formed by the intense wind of J005311, are potential sites for radio emission via synchrotron emission from shock-accelerated electrons. In this paper, we estimate the radio emission from these two shocks, and find the peak radio flux to be 0.1–10 mJy (at 0.01–1 GHz) in the outer SNR shock and 0.01–0.1 mJy (at 1–10 GHz) in the inner termination shock. We also search for radio emission from this source in the archival data of the Karl G. Jansky Very Large Array (VLA) Sky Survey at 3 GHz, the NRAO VLA Sky Survey at 1.4 GHz and the Canadian Galactic Plane Survey at 408 MHz, finding no significant detection. While targeted observations with higher sensitivity are desired, we particularly encourage those at higher frequency and angular resolution to probe the inner termination shock and its evolution.

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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.