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科学家发现亮度变化惊人的超新星爆炸

 4 years ago
source link: https://cn.engadget.com/2017/11/10/star-has-gone-supernova-multiple-times/
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一般来说超新星爆炸被视为一颗大型星体在生命终章前最后一次的灿烂,在抛射出绝大部份的物质后,剩余的核心会视质量大小变为中子星或黑洞。然而天文学家用夏威夷 Keck 望远镜发现的 iPTF14hls 星体,却让天文学家们大跌眼镜。从 2014 年被发现以来,它的亮度首先和一般超新星一样瞬间大增,再缓缓变暗。但和一般超新...

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