NGC 1097：带超新星的螺旋星系
(原标题: NGC 1097: Spiral Galaxy with Supernova)
2023-10-11
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这个螺旋星系的下臂发生了什么？一颗超新星。上个月，阿联酋的Al-Khatim天文台发现了超新星SN 2023rve，后来发现它与一颗大质量恒星的死亡爆炸相一致，可能留下了一个黑洞。螺旋星系ngc1097离我们相对较近，距离我们4500万光年，用小型望远镜朝南部的炉座（天炉座）方向望去就能看到。该星系不仅因其独特的旋臂而引人注目，而且因其微弱的喷流而引人注目，这与星系碰撞留下的古老恒星流一致——可能是左下角在其旋臂之间看到的小星系。这张特色图片在相隔几个月的两次曝光之间闪烁，突出了这颗新超新星。在附近的星系中发现超新星对于确定我们整个宇宙的规模和膨胀速度非常重要——这是一个目前意想不到的紧张和许多争论的话题。APOD编辑发言：10月12日星期四下午6点在密歇根州霍顿
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What's happening in the lower arm of this spiral galaxy? A supernova. Last month, supernova SN 2023rve was discovered with UAE's Al-Khatim Observatory and later found to be consistent with the death explosion of a massive star, possibly leaving behind a black hole. Spiral galaxy NGC 1097 is a relatively close 45 million light years away and visible with a small telescope toward the southern constellation of the Furnace (Fornax). The galaxy is notable not only for its picturesque spiral arms, but also for faint jets consistent with ancient star streams left over from a galactic collision -- possibly with the small galaxy seen between its arms on the lower left. The featured image highlights the new supernova by blinking between two exposures taken several months apart. Finding supernovas in nearby galaxies can be important in determining the scale and expansion rate of our entire universe -- a topic currently of unexpected tension and much debate. APOD editor to speak: in Houghton, Michigan on Thursday, October 12 at 6 pm