銀河系中央黑洞周圍的漩渦磁場
Swirling Magnetic Field around Our Galaxy's Central Black Hole

發表日期:2024-04-01
銀河系中心的大黑洞發生了什麼? 它正在從一個漩渦盤中吸入物質--現在已經證實,這個盤是磁化的。具體來說,最近人們看到黑洞的吸積盤發出了偏振光,這種輻射通常與磁化源有關。圖為參加事件地平線望遠鏡(EHT)合作專案的世界各地射電望遠鏡拍攝的銀河系中心黑洞 Sgr A* 的特寫。 疊加在一起的曲線說明了偏振光可能是從磁化氣體漩渦中發射出來的,這些氣體很快就會落入質量超過 400 萬的中心黑洞中。 這幅影像的中心部分可能是黑暗的,因為在我們和黑洞的黑暗事件視界之間幾乎看不到發光氣體。 繼續對這個黑洞和 M 87 的中心黑洞進行 EHT 監測,可能會獲得有關黑洞引力以及內陷物質如何產生磁碟和噴流的新線索。 美國宇航局預測 月球將擋住太陽的去路
原文:What's happening to the big black hole in the center of our galaxy? It is sucking in matter from a swirling disk -- a disk that is magnetized, it has now been confirmed. Specifically, the black hole's accretion disk has recently been seen to emit polarized light, radiation frequently associated with a magnetized source. Pictured here is a close-up of Sgr A*, our Galaxy's central black hole, taken by radio telescopes around the world participating in the Event Horizon Telescope (EHT) Collaboration. Superposed are illustrative curved lines indicating polarized light likely emitted from swirling magnetized gas that will soon fall into the 4+ million mass central black hole. The central part of this image is likely dark because little light-emitting gas is visible between us and the dark event horizon of the black hole. Continued EHT monitoring of this and M87's central black hole may yield new clues about the gravity of black holes and how infalling matter creates disks and jets. NASA Predicts: Moon to Get in Way of Sun
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