哈勃和韋伯望遠鏡拍攝的雪茄星系
The Cigar Galaxy from Hubble and Webb

發表日期:2024-04-15
這個星系發生了一些奇怪的事情,是什麼呢?這個星系被稱為 "雪茄星系"(Cigar Galaxy),編號為 M 82 ,它的中心正向外噴射著紅色的氣體和塵埃。 雖然這個星爆星系肯定是最近經過它的鄰居--大型螺旋星系 M 81 附近時被激起的,但這並不能完全解釋向外膨脹的紅光氣體和塵埃的來源。 有證據表明,這些物質是被許多恆星聯合產生的粒子風驅趕出來的,共同形成了銀河系超級風。在特寫圖片中,左邊顯示的是哈勃太空望遠鏡拍攝的可見光影像,右邊顯示的是詹姆斯-韋伯太空望遠鏡拍攝的紅外中心區域影像。 對新的韋伯影像的詳細檢查意外地發現,這些發紅光的塵埃與熱等離子體有關。對附近這個奇特星系性質的研究必將繼續下去。 日全食影像:提交給 APOD 的著名作品
原文:Something strange happened to this galaxy, but what? Known as the Cigar Galaxy and cataloged as M82, red glowing gas and dust are being cast out from the center. Although this starburst galaxy was surely stirred up by a recent pass near its neighbor, large spiral galaxy M81, this doesn't fully explain the source of the red-glowing outwardly expanding gas and dust. Evidence indicates that this material is being driven out by the combined emerging particle winds of many stars, together creating a galactic superwind. In the featured images, a Hubble Space Telescope image in visible light is shown on the left, while a James Webb Space Telescope image of the central region in infrared light is shown on the right. Detailed inspection of the new Webb image shows, unexpectedly, that this red-glowing dust is associated with hot plasma. Research into the nature of this strange nearby galaxy will surely continue. Total Eclipse Imagery: Notable Submissions to APOD
※ 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。