| M 87核区X射线辐射起源的研究 |
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| 引用本文： | 于照茏.M 87核区X射线辐射起源的研究[J].天文学进展,2011,29(1). |
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| 作者姓名： | 于照茏 |
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| 作者单位： | 中国科学院,上海天文台,上海,200030 |
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| 基金项目： | 国家自然科学基金项目，科技部973项目 |
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| 摘 要： | 利用耦合的吸积-喷流模型,对巨椭圆星系M 87(NGC 4486)核区的高分辨率观测到的多波段能谱分布进行了研究,重点是核区的X射线辐射起源问题.研究结果表明,M 87核区的X射线辐射是由喷流主导的,而不是此前认为的由径移主导的吸积流(ADAFs)主导的.
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| 关 键 词： | 吸积 喷流 X射线辐射 活动星系核 |
On the Origin of X-ray Emission in M 87 |
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| YU Zhao-long.On the Origin of X-ray Emission in M 87[J].Progress In Astronomy,2011,29(1). |
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| Authors: | YU Zhao-long |
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| Institution: | YU Zhao-long (Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai 200030,China) |
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| Abstract: | We investigate the origin of the X-ray emission in the nucleus region of the giant elliptical galaxy M 87(NGC 4486),via fitting the observed high-resolution spectral energy distributions(SEDs).We use the coupled ADAF-jet model to fit this multi-wavelength spectrum,especially focusing on the X-ray band.In this model,the whole accretion disk is described by ADAF,and does not include the truncated standard disk.A fraction of accretion matter is assumed to be transferred into the vertical direction to form a je... |
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| Keywords: | accretion jet X-ray emission active galaxy |
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