Glossary term: X 射線天文學
Description: X 射線天文學是一個收集和分析來自宇宙的高能電磁輻射（能量高於紫外線輻射，但低於伽馬射線輻射）信息的研究領域。X 射線的頻率介於 30 拍赫茲和 30 艾赫茲之間，相當於 10 皮米和 10 納米之間的波長。在許多天文學領域（包括X射線天文學）仍然使用的舊單位制中，這對應於0.1到100埃（Å）。鑑於在該頻譜部分光的粒子性更顯著，X射線天文學家通常使用光子能量而非波長來表徵光子的特徵。用電子伏特（eV），即粒子物理學中常用的能量單位，上述頻率和波長範圍對應的光子能量在100 eV到100 keV之間。由於大氣層吸收了大部分X射線，因此X射線天文學通常通過空間望遠鏡進行。來自天文源的X射線來自於極其高溫的區域。這些區域包括黑洞或中子星等緊湊天體周圍的盤和恆星的高溫日冕。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
This is an automated transliteration of the simplified Chinese translation of this term
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