ngc602：牡蛎星团
(原标题: NGC 602: Oyster Star Cluster)
2024-07-02
浏览次数: 16
云彩看起来像一只牡蛎，星星看起来像珍珠，但要放眼望去。在距离我们大约20万光年远的卫星星系小麦哲伦星云的边缘，坐落着这个500万年前的星团ngc602。星团ngc602被其诞生时的气体和尘埃外壳所包围，在这张令人惊叹的哈勃图像中呈现出特色，在钱德拉天文台的x射线图像和斯皮策望远镜的红外图像的翻转中增强。奇异的山脊和被扫回的气体强烈表明，NGC 602的大质量年轻恒星发出的高能辐射和冲击波侵蚀了尘埃物质，并引发了恒星形成的进程，使其远离星团的中心。在小麦哲伦星云的估计距离上，这张特色照片的跨度约为200光年，但在这张清晰的照片中，还可以看到各种诱人的背景星系。背景星系距离NGC 602数亿光年甚至更远。
查看原文解释
The clouds may look like an oyster, and the stars like pearls, but look beyond. Near the outskirts of the Small Magellanic Cloud, a satellite galaxy some 200 thousand light-years distant, lies this 5 million year old star cluster NGC 602. Surrounded by its birth shell of gas and dust, star cluster NGC 602 is featured in this stunning Hubble image, augmented in a rollover by images in the X-ray by the Chandra Observatory and in the infrared by Spitzer Telescope. Fantastic ridges and swept back gas strongly suggest that energetic radiation and shock waves from NGC 602's massive young stars have eroded the dusty material and triggered a progression of star formation moving away from the star cluster's center. At the estimated distance of the Small Magellanic Cloud, the featured picture spans about 200 light-years, but a tantalizing assortment of background galaxies are also visible in this sharp view. The background galaxies are hundreds of millions of light-years -- or more -- beyond NGC 602.