心形天線星系
The Heart Shaped Antennae Galaxies

來源:Kent E. Biggs|發表日期:2024-02-07
這兩個星系真的相互吸引嗎?是的,在引力作用下,結果就像一顆巨大的標誌性心臟--至少現在是這樣。圖中這對星系被命名為NGC 4038 和NGC 4039 ,被稱為天線星系。 由於它們相距僅有 6000 萬光年,按照星系間的標準來說是很近的,因此這對星系是夜空中被研究得最清楚的相互作用星系之一。它們之間的強烈吸引力始於大約 10 億年前,當時它們異常接近地擦肩而過。 在兩個星系相互作用的過程中,它們的恆星很少發生碰撞,但是當它們的星際氣體撞擊在一起時,就會形成新的恆星。 一些新的恆星已經形成,例如,我們看到的從 "雙人舞 "兩側延伸出來的長觸角。當星系合併完成時,很可能是十億年之後,可能已經形成了數十億顆新恆星。 開放科學:瀏覽天體物理學原始碼庫中的 3300 多個程式碼
原文:Are these two galaxies really attracted to each other? Yes, gravitationally, and the result appears as an enormous iconic heart -- at least for now. Pictured is the pair of galaxies cataloged as NGC 4038 and NGC 4039,known as the Antennae Galaxies. Because they are only 60 million light years away, close by intergalactic standards, the pair is one of the best studied interacting galaxies on the night sky. Their strong attraction began about a billion years ago when they passed unusually close to each other. As the two galaxies interact, their stars rarely collide, but new stars are formed when their interstellar gases crash together. Some new stars have already formed, for example, in the long antennae seen extending out from the sides of the dancing duo. By the time the galaxy merger is complete, likely over a billion years from now, billions of new stars may have formed. Open Science: Browse 3,300+ codes in the Astrophysics Source Code Library
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