哈勃拍摄到一颗有许多光点的星系
This NASA/ESA Hubble Space Telescope image features NGC 1672, a barred spiral galaxy located 49 million light-years from Earth in the constellation Dorado. This galaxy is a multi-talented light show, showing off an impressive array of different celestial lights. Like any spiral galaxy, shining stars fill its disk, giving the galaxy a beautiful glow. Along its two large arms, bubbles of hydrogen gas shine in a striking red light fueled by radiation from infant stars shrouded within. Near the galaxy’s center are some particularly spectacular stars embedded within a ring of hot gas. These newly formed and extremely hot stars emit powerful X-rays. Closer in, at the galaxy’s very center, sits an even brighter source of X-rays, an active galactic nucleus. This X-ray powerhouse makes NGC 1672 a Seyfert galaxy. It forms as a result of heated matter swirling in the accretion disk around NGC 1672’s supermassive black hole.
Image credit: ESA/Hubble & NASA, O. Fox, L. Jenkins, S. Van Dyk, A. Filippenko, J. Lee and the PHANGS-HST Team, D. de Martin (ESA/Hubble), M. Zamani (ESA/Hubble)
这张由NASA/ESA哈勃太空望远镜拍摄的照片显示的是NGC 1672，这是一个位于剑鱼座的棒旋星系，距离地球4,900万光年。这个星系是一场多姿多彩的灯光秀，展示着令人印象深刻的各种天体光影。像任何螺旋星系一样，闪亮的恒星填满它的星系盘，赋予整个星系美丽的光芒。沿着它的两条旋臂，氢气气泡发出耀眼的红光，而这种光芒的来源是隐藏在其中的婴儿恒星的辐射。在星系中心附近，有一些格外壮观的恒星，它们嵌在一个热气环中。这些新形成的极热恒星会发射出强大的X射线。更近的地方，在星系的正中心，有一个更明亮的X射线源，即活跃星系核。这个X射线发电站使NGC 1672成为塞弗特星系。它是由NGC 1672超大质量黑洞周围吸积盘中物质旋转而形成的。
影像来源: ESA/Hubble & NASA, O. Fox, L. Jenkins, S. Van Dyk, A. Filippenko, J. Lee and the PHANGS-HST Team, D. de Martin (ESA/Hubble), M. Zamani (ESA/Hubble)