We present a mass-temperature profile of gas within the central 10 kpc of a small sample of cool core clusters. The mass of the hottest gas phases, at 1.5 and 0.7 keV, is determined from X-ray spectra from the XMM Reflection Grating Spectrometers. The masses of the partially ionised atomic and the molecular phases are obtained from published H$\alpha$ and CO measurements. We find that the mass of gas at 0.7 keV in a cluster is remarkably similar to that of the molecular gas. Assuming pressure equilibrium between the phases, this means that they occupy volumes differing by $10^5$. The molecular gas is located within the HU nebula which is often filamentary and coincides radially and in position angle with the soft X-ray emitting gas.

中文翻译：

---

邻近星系团核心的内部气体质量-温度分布

我们展示了一个小的冷核团簇样本的中心 10 kpc 内气体的质量温度分布。1.5 和 0.7 keV 的最热气相的质量由 XMM 反射光栅光谱仪的 X 射线光谱确定。部分电离的原子和分子相的质量是从公开的 H$\alpha$ 和 CO 测量中获得的。我们发现簇中 0.7 keV 的气体质量与分子气体的质量非常相似。假设各相之间的压力平衡，这意味着它们占据的体积相差 10 美元 ^ 5 美元。分子气体位于 HU 星云内，该星云通常呈丝状，与软 X 射线发射气体在径向和位置角上重合。