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arXiv 2104.01174astro-ph.HEastro-ph.GA
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Tonantzintla星系窄线Seyfert-1(NLS1)S180的X射线软过剩探测

Probing the X-ray Soft Excess in the Narrow-Line Seyfert-1 (NLS1) Galaxy Tonantzintla S180

B. Korany

摘要:

窄线塞弗特-1星系Tonantzintla S180(Ton s180)的详细X射线软过剩。该研究使用了从2000年到2016年的四个XMM-Newton观测数据,这些数据来自XMM-Newton档案。分别采用两种不同的模型对每个数据的X射线软过剩进行处理,第一种模型是幂律分量,第二种模型是两个黑体分量。我们发现,对于所有观测,用幂律分量拟合的光谱都很差,并且输出参数与以前的研究有很大的不同,这个模型不能成功地再现所有观测的光谱的连续形状,包括软过剩(Nh = 3.62 +-1020 cm^{-2},硬带和软带的光子指数分别为3.31和1.57)。研究证明,在处理窄线Seyfert-1星系的X射线软过剩(Nh= 1.395 ± 10^20 cm^{-2},两个黑体分量的温度(KT)分别为0.075和0.17 keV)时,可以依靠这两个黑体分量。

英文摘要:

A detailed X-ray Soft Excess of the narrow-line Seyfert-1 galaxy Tonantzintla S180 (Ton s180) present. The study used four XMM-Newton observations for period from the year 2000 to the year 2016 taken from the XMM-Newton archive. Two different models were used to treat the X-ray Soft Excess for each data separately, the first model is power law component and the second one is two black body components. We found that, for all observations, the spectra fitted by using a power law component are poor and the output parameters much different from the previous studies, this model unsuccessfully reproduces the continuum shape of the spectrum, including the soft excess, of all observations (Nh = 3.62 +-1020 cm^{-2} and photon index for the hard and soft bands are 3.31 and 1.57). The study proved that it can rely upon the two black body components in treating X-ray Soft Excess of the narrow-line Seyfert-1 galaxy (Nh= 1.395 +- 10^20 cm^{-2} and The temperature of the two black-body components (KT) are 0.075 and 0.17 keV).

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