Copyright:SADR Observatory Team:
J-C Dalouzy,
P. Bazart, M. Dherbécourt, C. Humbert, G. Leroy,
J-P Quéau, H. Talbot, & E. Valin
中文翻譯:
你知道嗎，在我們的宇宙中，有一個非常特別的星系叫做Centaurus A，或者叫Cen A！這個星系中有一條條神秘的塵埃帶，這些塵埃帶讓它的中心幾乎在可見光下看不見。這樣的現象非常奇怪，因為一般來說，像Cen A這樣的巨大橢圓星系通常不會有太多的塵埃。但是，Cen A的歷史告訴我們，它可能是由兩個星系的碰撞形成的，這使得它的中心變得特別活躍，並出現了這些獨特的塵埃帶。這些塵埃帶和星星的形狀就像在宇宙中畫出來的一幅神奇圖畫！Cen A距離我們只有1300萬光年，是最近的活動星系之一喔！
原文:
What’s happened to the center of this galaxy? Dramatic dust lanes run across the center of unusual elliptical galaxy Centaurus A. These dust lanes are so thick they almost completely obscure the galaxy’s center in visible light. This is particularly unusual as Cen A’s older stars and oval shape are characteristic of a giant elliptical galaxy, a galaxy type typically low in dark dust. Pictured in this deep image is a complex network of foreground gas and dust, as well as shells of dim stars and a jet projecting to the upper right. Also known as NGC 5128, Cen A is surely the result of a galactic collision where many young dust-creating stars were formed. However, details of the creation of Cen A’s unusually active center and iconic central dust lanes are still being researched. Cen A lies only 13 million light years away, making it the closest active galaxy. Jigsaw Galaxy: Astronomy Puzzle of the Day
來源:NASA每日圖片
