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2022-11-28

Latest Research: 中興物理跨國合作團隊揭露神秘的快速電波爆炸的起源


由東京大學天文學系廿日出文洋教授、中興大學物理系橋本哲也助理教授與清華大學物理系徐資穎同學共同組成的跨國研究團隊,日前揭露了神秘的快速電波爆發(圖左)的起源。此研究是人類首次在快速電波爆發宿主星系中偵測到分子氣體的存在,並發現其多樣化的性質與一般恆星形成星系、核心塌縮超新星以及長伽瑪射線的宿主星系非常不同。研究團隊指出快速電波爆發的起源可能不是唯一的,而是源於廣泛的宿主星系環境中。
 
截圖 2022-11-27 上午8.55.51
快速電波爆發的想像圖,來源:Daniëlle Futselaar/ASTRON (artsource.nl)
An artist's impression of a fast radio burst. Credit: Daniëlle Futselaar/ASTRON (artsource.nl)

截圖 2022-11-27 上午8.58.40截圖 2022-11-28 下午7.55.37

(左):中興大學物理系橋本哲也教授  (右):清華大學物理系徐資穎同學
(Left) Tetsuya Hashimoto at the department of physics at National Chung Hsing University. (Right) Tzu-Yin Hsu at the department of physics at National Tsing Hua University.


Toward unveiling the cosmic mystery of Fast Radio Bursts

A team of researchers from the University of Tokyo, the National Chung Hsing University (NCHU), and the National Tsing Hua University (NTHU) investigated the birth environments of mysterious radio fireworks in the Universe, ‘fast radio bursts (Figure 1 left).’ The research team, including Prof. Bunyo Hatsukade (Univ. of Tokyo) and Prof. Tetsuya Hashimoto (NCHU; Figure middle), found that quite a large variety in molecular-gas properties in host galaxies of fast radio bursts, in stark contrast to those of long gamma-ray bursts and core-collapse supernovae. They concluded that the origins of fast radio bursts are not unique but heterogeneous in a wide range of host galaxy environments. Prof. Hashimoto says, “I am shocked. We are trying to find the unique origin of fast radio bursts, but instead, we found a huge variety!”. Tzuyin says, “Prof. Hashimoto did not believe me when we found a variety of results.” 




請參閱以下連結看完整的新聞報導 (Please visit the following link for the full description of the press release)
https://www.s.u-tokyo.ac.jp/en/press/2022/8180/


 

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