活动星系ngc1275
(原标题: Active Galaxy NGC 1275)
2023-01-26
浏览次数: 17
活动星系NGC 1275是大而相对较近的英仙座星系团的中心，主要成员。这个活跃的星系在可见波长上看起来很狂野，同时也是一个巨大的x射线和射电发射源。当整个星系落入NGC 1275时，它会吸积物质，最终在星系核心形成一个超大质量黑洞。这张彩色合成图像是由哈勃太空望远镜在2006年记录的数据制成的。它突出了由此产生的银河系碎片和发光气体的细丝，有些长达2万光年。这些细丝在NGC 1275中仍然存在，尽管星系碰撞的混乱会摧毁它们。是什么使细丝保持在一起？观测表明，这些被黑洞活动从星系中心推出的结构是由磁场维系在一起的。NGC 1275也被称为英仙座A，跨度超过10万光年，距离我们约2.3亿光年。
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Active galaxy NGC 1275 is the central, dominant member of the large and relatively nearby Perseus Cluster of Galaxies. Wild-looking at visible wavelengths, the active galaxy is also a prodigious source of x-rays and radio emission. NGC 1275 accretes matter as entire galaxies fall into it, ultimately feeding a supermassive black hole at the galaxy's core. This color composite image made from Hubble Space Telescope data recorded during 2006. It highlights the resulting galactic debris and filaments of glowing gas, some up to 20,000 light-years long. The filaments persist in NGC 1275, even though the turmoil of galactic collisions should destroy them. What keeps the filaments together? Observations indicate that the structures, pushed out from the galaxy's center by the black hole's activity, are held together by magnetic fields. Also known as Perseus A, NGC 1275 spans over 100,000 light years and lies about 230 million light years away.