Spitzer IRAC对Holmberg IX X-1中IR过量的观测：一个环绕双星盘还是一个可变喷流？
Spitzer IRAC observations of IR excess in Holmberg IX X-1: A circumbinary disk or a variable jet?
摘要：
我们介绍了斯皮策红外线阵列相机（IRAC）的光度观测的超发光X射线源（ULX，X-1）在霍尔姆堡IX。我们构建了一个光谱能量分布（SED）Holmberg IX X-1的基础上公布的光学，紫外和X射线数据结合红外数据从这个分析。我们用磁盘和恒星模型模拟了X射线和光学数据，但是我们发现ULX SED中有一个明显的IR过量，这不能用任何这些模型的拟合或外推来解释。相反，进一步的分析表明，红外过量的结果要么从尘埃排放，可能从一个环双星盘或从一个可变的喷流。
英文摘要：
We present Spitzer Infrared Array Camera (IRAC) photometric observations of the Ultra-luminous X-ray Source (ULX, X-1) in Holmberg IX. We construct a spectral energy distribution (SED) for Holmberg IX X-1 based on published optical, UV and X-ray data combined with the IR data from this analysis. We modeled the X-ray and optical data with disk and stellar models, however we find a clear IR excess in the ULX SED that cannot be explained by fits or extrapolations of any of these models. Instead, further analysis suggests that the IR excess results either from dust emission, possibly from a circumbinary disk or from a variable jet.
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