来自韦伯的棒旋星系NGC 1365
(原标题: Barred Spiral Galaxy NGC 1365 from Webb)
2024-11-13
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NGC 1365距离南部天炉座仅5600万光年，是一个直径约20万光年的巨大棒状螺旋星系。这是我们棒旋银河系的两倍大。这张来自詹姆斯韦伯太空望远镜的中红外仪器（MIRI）的清晰图像揭示了红外光下壮观螺旋的惊人细节。韦伯的视野横跨NGC 1365约6万光年，探索星系的核心和明亮的新生星团。这个由尘埃细丝和气泡组成的错综复杂的网络是由年轻的恒星沿着从星系中心酒吧蜿蜒而出的旋臂形成的。天文学家怀疑NGC 1365棒状结构的重力场在星系的演化中起着至关重要的作用，它将气体和尘埃汇集到恒星形成的漩涡中，并最终将物质输送到活跃星系中心的超大质量黑洞中。
查看原文解释
A mere 56 million light-years distant toward the southern constellation Fornax, NGC 1365 is an enormous barred spiral galaxy about 200,000 light-years in diameter. That's twice the size of our own barred spiral Milky Way. This sharp image from the James Webb Space Telescope's Mid-Infrared Instrument (MIRI) reveals stunning details of this magnificent spiral in infrared light. Webb's field of view stretches about 60,000 light-years across NGC 1365, exploring the galaxy's core and bright newborn star clusters. The intricate network of dusty filaments and bubbles is created by young stars along spiral arms winding from the galaxy's central bar. Astronomers suspect the gravity field of NGC 1365's bar plays a crucial role in the galaxy's evolution, funneling gas and dust into a star-forming maelstrom and ultimately feeding material into the active galaxy's central, supermassive black hole.