蟹状星云从可见到x射线
(原标题: The Crab Nebula from Visible to X-Ray)
2024-07-23
浏览次数: 19
蟹状星云的动力是什么？一颗城市大小的磁化中子星，每秒旋转30次。它被称为蟹状脉冲星，是星云核心气体漩涡中心的亮点。这张壮观的蟹状星云（M1）的照片直径约10光年，描绘了一个旋转的中央圆盘和周围膨胀的发光气体的复杂细丝。这张照片结合了哈勃太空望远镜发出的可见光（红色和蓝色）、钱德拉x射线天文台发出的x射线（白色）和成像x射线偏振探测器（IXPE）探测到的漫射x射线（漫射紫色）。中央脉冲星通过略微减慢其自旋速率来驱动蟹状星云的发射和膨胀，从而驱动出一股高能电子风。今天是美国宇航局旗舰级x射线天文台钱德拉发射25周年纪念日。许多发现：钱德拉庆祝25周年
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What powers the Crab Nebula? A city-sized magnetized neutron star spinning around 30 times a second. Known as the Crab Pulsar, it is the bright spot in the center of the gaseous swirl at the nebula's core. About 10 light-years across, the spectacular picture of the Crab Nebula (M1) frames a swirling central disk and complex filaments of surrounding and expanding glowing gas. The picture combines visible light from the Hubble Space Telescope in red and blue with X-ray light from the Chandra X-ray Observatory shown in white, and diffuse X-ray emission detected by Imaging X-ray Polarimetry Explorer (IXPE) in diffuse purple. The central pulsar powers the Crab Nebula's emission and expansion by slightly slowing its spin rate, which drives out a wind of energetic electrons. The featured image released today, the 25th Anniversary of the launch of NASA's flagship-class X-ray Observatory: Chandra. Many Discoveries: Chandra Celebrates 25th Anniversary