M87 的恒星扰断射线

IF 12.9 1区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Nature Astronomy Pub Date : 2024-11-12 DOI:10.1038/s41550-024-02421-6

Paul Woods

引用次数: 0

摘要

HST 巡天中探测到的 94 个喷发新星与 41 个 HST 档案探测到的新星结合在一起，提供了整个 M87 的分布情况。星系的图像被分成了十个相等的楔形，每个楔形中的新星数量都被计算在内（见图，青色和粉色直方图分别表示最近巡天和合并巡天中每个楔形中的新星数量）。结果发现有 25 个新星位于与喷流对齐的楔形区内，而在其他楔形区内发现的新星不足 16 个。根据K波段表面亮度模拟的新星分布与均匀性的偏差不超过10%。与喷流对齐或不对齐的新星在性质上没有统计学差异，因此新星增强的因果关系尚不清楚。喷流产生的冲击波可能会提高白矮星的吸积率，或者喷流可能会引发沿途恒星的形成，但后一种解释无法解释在靠近M87的反喷流处没有看到新星增强的现象。也许最近有一颗卫星沿着喷流方向吸积，导致恒星过剩。还需要进一步观测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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M87’s stellar disruptor ray

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来源期刊

Nature Astronomy Physics and Astronomy-Astronomy and Astrophysics

CiteScore

19.50

自引率

2.80%

发文量

252

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