Abstract X-ray binaries exhibit a wide range of properties but there are few accepted methods to determine the nature of the compact object. Color-Color-Intensity diagrams have been suggested as a means of distinguishing between systems containing black holes from those containing neutron stars. However, this technique has been verified with data from only one instrument (RXTE/ASM) with a single set of X-ray colors defined using data available only in pre-determined energy bands. We test a selection of X-ray colors with a more sensitive instrument to determine the reliability of this method. We use data from the MAXI/Gas Slit Camera, which allows users to specify energy-bands. We test X-ray colors that have been previously defined in the literature as well as ones that we define specifically in this paper. A representative set of systems are used to construct Color-Color-Intensity diagrams in each set of colors to determine which are best for separating different classes. For studying individual sources certain bands are more effective than others. For a specified energy range, the separation of soft states in black hole binaries was possible only where both soft and hard colors included information from the lowest energy band. We confirm that Color-Color-Intensity diagrams can distinguish between systems containing black holes or neutron stars in all X-ray colors tested; this suggests an universality in the accretion processes governing these different classes. We suggest possible physical processes driving different classes of X-ray binaries to different locations in Color-Color-Intensity diagrams.

中文翻译：

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使用颜色-颜色-强度图在分离 X 射线二元类时比较 X 射线颜色选择

摘要 X 射线双星表现出广泛的性质，但很少有公认的方法来确定致密物体的性质。颜色-颜色-强度图已被建议作为区分包含黑洞的系统和包含中子星的系统的一种手段。但是，该技术仅使用来自一台仪器 (RXTE/ASM) 的数据进行了验证，该仪器使用仅在预定能带中可用的数据定义的一组 X 射线颜色。我们使用更灵敏的仪器测试了一系列 X 射线颜色，以确定该方法的可靠性。我们使用来自 MAXI/Gas Slit Camera 的数据，它允许用户指定能带。我们测试先前在文献中定义的 X 射线颜色以及我们在本文中专门定义的颜色。一组具有代表性的系统用于在每组颜色中构建颜色-颜色-强度图，以确定哪种颜色最适合分离不同的类别。对于研究单个来源，某些频段比其他频段更有效。对于指定的能量范围，只有在软色和硬色都包含来自最低能带的信息时，才能分离黑洞双星中的软态。我们确认颜色-颜色-强度图可以在所有 X 射线颜色测试中区分包含黑洞或中子星的系统；这表明控制这些不同类别的吸积过程具有普遍性。我们建议可能的物理过程将不同类别的 X 射线双星驱动到颜色-颜色-强度图中的不同位置。