| Circinus X-1 在转换期的能谱和功率谱 |
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| 引用本文： | 张明轩,韩万强,于津江,吴海滨,曹鹤飞.Circinus X-1 在转换期的能谱和功率谱[J].天文研究与技术,2007,4(4):313-319. |
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| 作者姓名： | 张明轩 韩万强 于津江 吴海滨 曹鹤飞 |
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| 作者单位： | 石家庄学院物理系 石家庄050035 |
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| 摘 要： | Circinus X-1是小质量X射线双星(LMXB),它的能谱和时变十分复杂而独特。在不同的观测时期,它的硬度强度图(HID)和双色图(CCD)显示了不同的形状。本文选择了Circinus X-1正处于X射线流量从高向低转换期间的观测数据,通过对这一时期HID和相应能谱和时变性质的讨论,并将所得结果与1997年观测到的高亮度期间的能谱和时变性质(Shirey 1999)进行对比研究,进一步找到源的强度变化对其X射线辐射性质的影响。
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| 关 键 词： | 致密天体 X射线双星 能谱 光变 |
| 文章编号： | 1672-7673（2007）04-0313-07 |
| 收稿时间： | 2006-10-09 |
| 修稿时间： | 2007-04-10 |
Energy and Power Spectra of Circinus X-1 in the Crisis |
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| ZHANG Ming-xuan,HAN Wan-qiang,YU Jin-jiang,WU Hai-bin,CAO He-fei.Energy and Power Spectra of Circinus X-1 in the Crisis[J].Astronomical Research & Technology,2007,4(4):313-319. |
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| Authors: | ZHANG Ming-xuan HAN Wan-qiang YU Jin-jiang WU Hai-bin CAO He-fei |
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| Institution: | Physics Department, Shijiazhuang College, Shijiazhuang050035, China |
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| Abstract: | Cir X-1 is a low mass X-ray binary(LMXB).The color-color diagram and the hardness intensity diagram(HID) are showed by dissimilar figures in different periods.We use the transformation period in which the X-ray flow of Cir X-1 changes from high to low to discuss the HID by the corresponding energy spectra and timing characters,and we also compare the results in 1977.We have found new effect on the X-ray radiation with intensity changes of the source. |
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| Keywords: | Compact objects X-ray binaries energy spectrum photon variability |
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