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arXiv 2310.09015astro-ph.HEastro-ph.GA
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M87 中连接旋转黑洞的进动喷流喷嘴

Precessing jet nozzle connecting to a spinning black hole in M87

Yuzhu Cui, Kazuhiro Hada, Tomohisa Kawashima, Motoki Kino, Weikang Lin, Yosuke Mizuno, Hyunwook Ro, Mareki Honma, Kunwoo Yi, Jintao Yu, Jongho Park, Wu Jiang, Z… 展开作者

Yuzhu Cui, Kazuhiro Hada, Tomohisa Kawashima, Motoki Kino, Weikang Lin, Yosuke Mizuno, Hyunwook Ro, Mareki Honma, Kunwoo Yi, Jintao Yu, Jongho Park, Wu Jiang, Zhiqiang Shen, Evgeniya Kravchenko, Juan-Carlos Algaba, Xiaopeng Cheng, Ilje Cho, Gabriele Giovannini, Marcello Giroletti, Taehyun Jung, Ru-Sen Lu, Kotaro Niinuma, Junghwan Oh, Ken Ohsuga, Satoko Sawada-Satoh, Bong Won Sohn, Hiroyuki R. Takahashi, Mieko Takamura, Fumie Tazaki, Sascha Trippe, Kiyoaki Wajima, Kazunori Akiyama, Tao An, Keiichi Asada, Salvatore Buttaccio, Do-Young Byun, Lang Cui, Yoshiaki Hagiwara, Tomoya Hirota, Jeffrey Hodgson, Noriyuki Kawaguchi, Jae-Young Kim, Sang-Sung Lee, Jee Won Lee, Jeong Ae Lee, Giuseppe Maccaferri, Andrea Melis, Alexey Melnikov, Carlo Migoni, Se-Jin Oh, Koichiro Sugiyama, Xuezheng Wang, Yingkang Zhang, Zhong Chen, Ju-Yeon Hwang, Dong-Kyu Jung, Hyo-Ryoung Kim, Jeong-Sook Kim, Hideyuki Kobayashi, Bin Li, Guanghui Li, Xiaofei Li, Zhiyong Liu, Qinghui Liu, Xiang Liu, Chung-Sik Oh, Tomoaki Oyama, Duk-Gyoo Roh, Jinqing Wang, Na Wang, Shiqiang Wang, Bo Xia, Hao Yan, Jae-Hwan Yeom, Yoshinori Yonekura, Jianping Yuan, Hua Zhang, Rongbing Zhao, Weiye Zhong

AI总结:

本研究通过分析 M87 星系 22 年的射电观测,发现喷流位置角约 11 年的周期变化,推断旋转黑洞引起错位吸积盘的 Lense-Thirring 进动,解释了喷流横向偏移的起源。

摘要:

邻近的射电星系 M87 为探索中心超大质量黑洞与相对论性喷流之间的联系提供了独特的机会。先前对 M87 内部区域的研究揭示了起源于黑洞附近的喷流具有较宽的张角。事件视界望远镜解析了中心射电源,发现了一个与广义相对论预期一致的非对称环状结构。基于 17 年的观测基线,喷流的横向位置发生了偏移,这可能源于一个 8 至 10 年的准周期性。然而,这种横向偏移的起源仍不清楚。在此,我们报告了对 22 年射电观测的分析,结果表明喷流位置角的变化存在约 11 年的周期。我们推断,我们观测到的是一颗旋转黑洞,它引起了错位吸积盘的 Lense-Thirring 进动。类似的喷流进动可能在其他活动星系核中普遍存在,但由于变化的幅度较小且周期较长,一直难以探测。

英文摘要:

The nearby radio galaxy M87 offers a unique opportunity to explore the connections between the central supermassive black hole and relativistic jets. Previous studies of the inner region of M87 revealed a wide opening angle for the jet originating near the black hole. The Event Horizon Telescope resolved the central radio source and found an asymmetric ring structure consistent with expectations from General Relativity. With a baseline of 17 years of observations, there was a shift in the jet's transverse position, possibly arising from an eight to ten-year quasi-periodicity. However, the origin of this sideways shift remains unclear. Here we report an analysis of radio observations over 22 years that suggests a period of about 11 years in the position angle variation of the jet. We infer that we are seeing a spinning black hole that induces the Lense-Thirring precession of a misaligned accretion disk. Similar jet precession may commonly occur in other active galactic nuclei but has been challenging to detect owing to the small magnitude and long period of the variation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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