Copyright:
原文:
What’s lighting up the Cigar Galaxy? M82, as this irregular galaxy is also known, was stirred up by a recent pass near large spiral galaxy M81. This doesn’t fully explain the source of the red-glowing outwardly expanding gas, however. Evidence indicates that this gas is being driven out by the combined emerging particle winds of many stars, together creating a galactic superwind. The featured photographic mosaic highlights a specific color of red light strongly emitted by ionized hydrogen gas, showing detailed filaments of this gas. The filaments extend for over 10,000 light years. The 12-million light-year distant Cigar Galaxy is the brightest galaxy in the sky in infrared light, and can be seen in visible light with a small telescope towards the constellation of the Great Bear (Ursa Major).
中文翻譯:
🌌 照亮雪茄星系的源頭是什麼？M82，這個不規則星系，最近因為靠近大型螺旋星系 M81 而受到影響。不過，這並不能完全解釋紅色發光的外擴氣體的來源。證據表明，這些氣體是由眾多恆星的粒子風共同驅動，形成了一個宇宙超風。這幅精美的照片馬賽克突顯了氫氣離子化強烈發射的特定紅光，顯示出詳細的氣體絲狀結構，這些絲狀結構延伸超過 10,000 光年。雪茄星系距離地球約 1,200 萬光年，是天空中最亮的紅外光星系，您可以在大熊座 (Ursa Major) 中用小望遠鏡觀察到它。
#CigarGalaxy #M82 #宇宙超風 #星系 #大熊座 #紅外光 #星空 #天文攝影 #天文愛好者 #探索宇宙
來源:NASA每日圖片
