论文标题
射电星系中KPC量表喷射的TEV伽马射线排放的形态
Morphology of TeV gamma-ray emission from the kpc scale jets in radio galaxies
论文作者
论文摘要
从附近的几个射线星系中观察到Tev Gamma射线，它们的喷气式会与观察者相对较大的角度观察。该发射可以在KPC量表喷气机中产生，其洛伦兹因子是从parsec尺度距离的几个阶数值下降的。我们详细考虑了KPC量表中的相对论电子产生TEV Gamma-ray发射的模型，该模型将其从内部（Parsec）刻度射击强烈辐射构成强烈光束的辐射。例如，我们研究了附近宽银河系cen 〜a中的KPC量表射流的TEV伽马射线发射的形态。结果表明，TEV伽马射线发射可以延伸到整个KPC尺度距离，以相对平滑地沿射流分布，以获得所考虑模型的某些参数。对未来的Cherenkov望远镜阵列（例如CTA）对这种特定伽马射线发射的形态结构的研究应对CEN〜A中KPC量表喷气的内容和动力学产生重要约束。
TeV gamma rays are observed from a few nearby radio galaxies whose jets are viewed at relatively large angles towards the observer. This emission can be produced in the kpc scale jets whose Lorentz factors are decelerated from values of the order of several at the parsec scale distances. We consider in detail the model in which TeV gamma-ray emission is produced by the relativistic electrons in the kpc scale jet which comptonize strongly beamed radiation from the inner (parsec scale) jet. As an example, we study morphology of the TeV gamma-ray emission from the decelerated kpc scale jet in the nearby radio galaxy Cen~A. It is shown that TeV gamma-ray emission can extend throughout the kpc scale distances, being relatively smoothly distributed along the jet for some parameters of the considered model. Investigation of the morphological structure of such specific gamma-ray emission by the future Cherenkov Telescope Array (e.g. CTA) should provide important constraints on the content and dynamics of the kpc scale jet in Cen~A.
