cirx -1：非洲星云中的喷流
(原标题: Cir X-1: Jets in the Africa Nebula)
2025-09-03
浏览次数: 1568
当超新星产生中子星时，喷流多久会形成？非洲星云提供了线索。这颗超新星遗迹围绕着circirus X-1，一颗发射x射线的中子星和它环绕的伴星。这张照片是由位于南非的MeerKAT射电望远镜上的ThunderKAT合作拍摄的，它显示了星云内cirx -1当前活跃喷流的明亮核心和叶状结构。只有4600年历史的cirx -1可能是微类星体SS 433*的“妹妹”。然而，新发现的气泡从星云右上方的一个环状洞中流出，以及左下方的一个环，证明了其他喷流以前存在过。计算机模拟表明，这些喷流在爆炸后100年内形成，并持续了1000年之久。令人惊讶的是，要产生观测到的气泡，喷流需要比之前认为的年轻中子星产生的更强大。开放科学：浏览天体物理学源代码库中的3700多个代码
查看原文解释
How soon do jets form when a supernova gives birth to a neutron star? The Africa Nebula provides clues. This supernova remnant surrounds Circinus X-1, an X-ray emitting neutron star and the companion star it orbits. The image, from the ThunderKAT collaboration on the MeerKAT radio telescope situated in South Africa, shows the bright core-and-lobe structure of Cir X-1’s currently active jets inside the nebula. A mere 4600 years old, Cir X-1 could be the "Little Sister" of microquasar SS 433*. However, the newly discovered bubble exiting from a ring-like hole in the upper right of the nebula, along with a ring to the bottom left, demonstrate that other jets previously existed. Computer simulations indicate those jets formed within 100 years of the explosion and lasted up to 1000 years. Surprisingly, to create the observed bubble, the jets need to be more powerful than young neutron stars were previously thought to produce. Open Science: Browse 3,700+ codes in the Astrophysics Source Code Library