行星狀星雲 Mz 3 :螞蟻星雲
Planetary Nebula Mz3: The Ant Nebula

發表日期:2025-07-13
為什麼這隻螞蟻不是一個大球體? 行星狀星雲Mz 3 是由一顆類似於太陽的恆星拋射出來的,這顆恆星肯定是圓形的。 那為什麼流走的氣體會形成一個明顯不是圓形的螞蟻狀星雲呢? 蛛絲馬跡可能包括被排出氣體每秒 1000 公里的高速、結構長達一光年,以及位於星雲中心的恆星的磁性。 一個可能的答案是,Mz 3 隱藏著第二顆較暗的恆星,它的執行軌道靠近明亮的恆星。 另一種與之相反的假設認為,中心恆星自身的自旋和磁場正在引導氣體。 由於這顆中心恆星似乎與我們的太陽非常相似,天文學家希望透過進一步瞭解這顆巨大太空螞蟻的歷史,能夠為我們的太陽和地球的未來提供有益的啟示。 探索你的宇宙隨機 APOD 生成器
原文:Why isn't this ant a big sphere? Planetary nebula Mz3 is being cast off by a star similar to our Sun that is, surely, round. Why then would the gas that is streaming away create an ant-shaped nebula that is distinctly not round? Clues might include the high 1000-kilometer per second speed of the expelled gas, the light-year long length of the structure, and the magnetism of the star featured here at the nebula's center. One possible answer is that Mz3 is hiding a second, dimmer star that orbits close in to the bright star. A competing hypothesis holds that the central star's own spin and magnetic field are channeling the gas. Since the central star appears to be so similar to our own Sun, astronomers hope that increased understanding of the history of this giant space ant can provide useful insight into the likely future of our own Sun and Earth. Explore Your Universe: Random APOD Generator
※ 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。