Energy and Power Spectra of Circinus X-1 in the Crisis

ZHANG Ming-xuan; HAN Wan-qiang; YU Jin-jiang; WU Hai-bin; CAO He-fei

Astronomical Research and Technology > 2007 > 4(4): 313-319.

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 and Technology, 2007, 4(4): 313-319.

Citation:

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 and Technology, 2007, 4(4): 313-319.

Citation:

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 and Technology, 2007, 4(4): 313-319.

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Energy and Power Spectra of Circinus X-1 in the Crisis

Physics Department, Shijiazhuang College, Shijiazhuang 050035, China

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Received Date: October 08, 2006
Revised Date: April 09, 2007
Published Date: October 14, 2007

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Abstract

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.
- Compact objects,
- X-ray binaries,
- energy spectrum,
- photon variability

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