脉冲星风云G0.9+0.1的非热辐射特性及能谱演化

Modelling nonthermal emission and spectral evolution of pulsar wind nebula G0.9+0.1

观测表明,脉冲星风云G0.9+0.1能够辐射出由射电波段延伸至高能伽马射线的光子.建立了一个描述脉冲星风云多波段辐射与动力学演化的理论模型.结合观测数据,数值求解该模型,重建了脉冲星风云G0.9+0.1的多波段辐射谱,并探讨了该星云非热辐射谱的时间演化特性.结果表明,该脉冲星风云的多波段辐射谱随时间的变化具有明显的改变.

The observations indicate that the photons emission from pulsar wind nebula G0.9+0.1 can be ranged from radio to TeV gamma-rays.A theoretical model which includes the multiband photon emission and dynamical evolution of the pulsar wind nebula is presented to investigate non-thermal radiative properties of G0.9+0.1.The calculated results reveal that the observed photon spectral energy distribution can be well reproduced in the framework of our model.According to the parameters obtained from the modelling results of the multiband spectrum,the spectral evolution of G0.9+0.1 is also investigated.The modelling results indicate the non-thermal spectrum of G0.9+0.1 have obvious changes as the increase of time.