AM 1054 :星系碰撞形成恆星
AM1054: Stars Form as Galaxies Collide

發表日期:2024-02-20
當星系發生碰撞時,會有多少恆星誕生? 對於AM 1054 - 325 星系來說,答案是數以百萬計,這是哈勃太空望遠鏡最近釋出的一張圖片。當AM 1054 - 325 星系和附近的一個星系相互環繞時,恆星並沒有被摧毀,而是它們的引力和運動點燃了恆星的誕生。 在另一個星系的引力作用下,AM 1054 - 325 淡黃色星體上的氣體碎片迅速形成恆星。 新生恆星周圍的氫氣發出粉紅色的光芒。 明亮的新生恆星閃耀著藍色的光芒,它們聚集在一起,形成了由數千到數百萬顆恆星組成的緊湊的育兒室。AM 1054 - 325 擁有 100 多個這樣的濃藍色點狀星團,有些看起來就像一串珍珠。 對紫外線的分析有助於確定這些恆星中的大多數年齡都小於 1000 萬年:即恆星嬰兒。 其中許多 "苗圃 "可能會成長為球狀星團,而底部頂端的一束年輕恆星甚至可能分離出來,形成一個小型星系。
原文:When galaxies collide, how many stars are born? For AM1054-325, featured here in a recently released image by the Hubble Space Telescope, the answer is millions. Instead of stars being destroyed as galaxy AM1054-325 and a nearby galaxy circle each other, their gravity and motion has ignited stellar creation. Star formation occurs rapidly in the gaseous debris stretching from AM1054-325’s yellowish body due to the other galaxy’s gravitational pull. Hydrogen gas surrounding newborn stars glows pink. Bright infant stars shine blue and cluster together in compact nurseries of thousands to millions of stars. AM1054-325 possesses over 100 of these intense-blue, dot-like star clusters, some appearing like a string of pearls. Analyzing ultraviolet light helped determine that most of these stars are less than 10 million years old: stellar babies. Many of these nurseries may grow up to be globular star clusters, while the bundle of young stars at the bottom tip may even detach and form a small galaxy.
※ 本文由萌芽機器人自動轉貼自每日一天文圖(Astronomy Picture of the Day,APOD),原文為英文,正體中文是透過 DeepL 翻譯及 OpenCC 進行自動處理,內容僅供參考,若有任何錯誤之處還請見諒!
關於每日一天文圖:每日一天文圖網站是美國國家航空暨太空總署與密西根理工大學提供的服務,網站每天提供一張影像或圖片,並由天文學家撰寫扼要說明其特別之處。