Article ID Journal Published Year Pages File Type
1766659 Advances in Space Research 2007 6 Pages PDF
Abstract

The recently updated data of the twin kilohertz quasi-periodic oscillations (kHz QPOs) in the neutron star low-mass X-ray binaries are analyzed. The power-law fitting ν1 = a(ν2/1000)b and linear fitting ν2 = Aν1 + B are applied, individually, to the data points of four Z sources (GX 17+2, GX 340+0, GX 5−1 and Sco X−1) and four Atoll sources (4U 0614+09, 4U 1608−52, 4U 1636−53 and 4U 1728−34). The χ2-tests show that the power-law correlation and linear correlation both can fit data well. Moreover, the comparisons between the data and the theoretical models for kHz QPOs are discussed.

Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Space and Planetary Science
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