NGC 1672 :來自哈勃的棒狀螺旋星系
NGC 1672: Barred Spiral Galaxy from Hubble

發表日期:2025-03-11
許多旋渦星系的中心都有橫槓。 就連我們的銀河系也被認為有一個不大的中心條紋。這裡介紹的NGC 1672 就是一個明顯的棒狀螺旋星系,它的壯觀細節被軌道上的哈勃太空望遠鏡拍攝下來。可以看到暗色的絲狀塵埃通道、由明亮藍色恆星組成的年輕星團、由發光氫氣組成的紅色發射星雲、橫跨中心的長條形明亮恆星,以及一個可能容納了一個超大質量黑洞的明亮活動核。 光線從橫跨約 75000 光年的 NGC 1672 到達我們這裡大約需要 6000 萬年。NGC 1672 出現在海豚魚(多拉多)星座的方向上,我們對它進行了研究,以找出螺旋條是如何促進星系中心區域恆星形成的。
原文:Many spiral galaxies have bars across their centers. Even our own Milky Way Galaxy is thought to have a modest central bar. Prominently barred spiral galaxy NGC 1672, featured here, was captured in spectacular detail in an image taken by the orbiting Hubble Space Telescope. Visible are dark filamentary dust lanes, young clusters of bright blue stars, red emission nebulas of glowing hydrogen gas, a long bright bar of stars across the center, and a bright active nucleus that likely houses a supermassive black hole. Light takes about 60 million years to reach us from NGC 1672, which spans about 75,000 light years across. NGC 1672, which appears toward the constellation of the Dolphinfish (Dorado), has been studied to find out how a spiral bar contributes to star formation in a galaxy's central regions.
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