不寻常的星云Pa 30
(原标题: Unusual Nebula Pa 30)
2024-04-03
浏览次数: 17
是什么创造了这种不寻常的天体烟花？这个星云被命名为Pa 30，现在出现在与1181年的一颗明亮的“客星”相同的天空方向。尽管Pa 30的细丝看起来类似于新星（例如GK Per）和行星状星云（例如NGC 6751）产生的细丝，但一些天文学家现在提出它是由一种罕见的超新星产生的：热核Iax型，因此也被命名为SN 1181。在这个模型中，超新星不是一颗恒星爆炸的结果，而是两颗白矮星旋转并合并时发生的爆炸。中间的蓝点被假设为一颗僵尸恒星，即在超新星级爆炸中幸存下来的残余白矮星。这张特色图像结合了红外（WISE）、可见光（MDM, Pan-STARRS）和x射线（钱德拉，XMM）望远镜获得的图像和数据。未来的观察和分析可能会告诉我们更多。NASA报道：2024年4月8日的日全食
查看原文解释
What created this unusual celestial firework? The nebula, dubbed Pa 30, appears in the same sky direction now as a bright "guest star" did in the year 1181. Although Pa 30's filaments look similar to that created by a nova (for example GK Per), and a planetary nebula (for example NGC 6751), some astronomers now propose that it was created by a rare type of supernova: a thermonuclear Type Iax, and so is (also) named SN 1181. In this model, the supernova was not the result of the detonation of a single star, but rather a blast that occurred when two white dwarf stars spiraled together and merged. The blue dot in the center is hypothesized to be a zombie star, the remnant white dwarf that somehow survived this supernova-level explosion. The featured image combines images and data obtained with infrared (WISE), visible (MDM, Pan-STARRS), and X-ray (Chandra, XMM) telescopes. Future observations and analyses may tell us more. NASA Coverage: Total Solar Eclipse of 2024 April 8