树胶星云超新星遗迹
(原标题: The Gum Nebula Supernova Remnant)
2022-11-29
浏览次数: 52
因为树胶星云是离我们最近的超新星遗迹，所以我们很难看到它。这个星云横跨天空40度，看起来又大又暗，很容易在明亮而复杂的背景中消失。这张摄于5月下旬的单张广角照片中，胶状星云在右侧的红色辐射中显得格外醒目。在画面中还可以看到前景中的智利阿塔卡马沙漠，左上角对角线向下运行的我们银河系平面上的船底座星云，以及邻近的大麦哲伦星云（LMC）。树胶星云离我们如此之近，以至于我们离它的前边比后边近得多，两个星云分别有450光年和1500光年。这个复杂的星云位于船尾座和船帆座的方向。奇怪的是，关于口香糖星云还有很多未知之处，包括形成它的超新星爆炸的时间和数量。
查看原文解释
Because the Gum Nebula is the closest supernova remnant, it is actually hard to see. Spanning 40 degrees across the sky, the nebula appears so large and faint that it is easily lost in the din of a bright and complex background. The Gum Nebula is highlighted nicely in red emission toward the right of the featured wide-angle, single-image photograph taken in late May. Also visible in the frame are the Atacama Desert in Chile in the foreground, the Carina Nebula in the plane of our Milky Way galaxy running diagonally down from the upper left, and the neighboring Large Magellanic Cloud (LMC) galaxy. The Gum Nebula is so close that we are much nearer the front edge than the back edge, each measuring 450 and 1500 light years respectively. The complicated nebula lies in the direction of the constellations of Puppis and Vela. Oddly, much remains unknown about the Gum Nebula, including the timing and even number of supernova explosions that formed it.
© Victor Lima