BLOX：波恩透镜，光学和X射线选择的星系团- I。簇目录构建
BLOX: The Bonn Lensing, Optical, and X-ray selected galaxy clusters -- I. Cluster catalog construction
摘要：
星系团的质量函数是一个重要的宇宙学问题。选择方法的差异可能会导致确定质量函数时的偏差。从XMM-牛顿后续巡天的光学和X射线数据，我们获得了一个样本的星系团候选人使用弱引力透镜，光学波兹曼匹配滤波器的方法，并寻找扩展的X射线源。我们开发了我们的弱透镜搜索标准，通过测试的性能孔径质量统计现实的射线跟踪模拟匹配我们的调查参数，并通过比较两个过滤功能。我们发现，占主导地位的噪声源，我们的调查是形状噪声在几乎所有的显着性水平和虚假集群检测由于大尺度结构的投影是可以忽略不计的，除了可能非常显着检测到的峰值。我们完整的星团目录有155个候选星团，116个是用波兹曼匹配滤波器发现的，59个扩展X射线源，31个剪切选择的潜在星团。这些候选聚类中的大多数以前都不知道。目前的目录将是一个坚实的基础，研究可能的选择效果，在任何一种方法。
英文摘要：
The mass function of galaxy clusters is an important cosmological probe. Differences in the selection method could potentially lead to biases when determining the mass function. From the optical and X-ray data of the XMM-Newton Follow-Up Survey, we obtained a sample of galaxy cluster candidates using weak gravitational lensing, the optical Postman matched filter method, and a search for extended X-ray sources. We developed our weak-lensing search criteria by testing the performance of the aperture mass statistic on realistic ray-tracing simulations matching our survey parameters and by comparing two filter functions. We find that the dominant noise source for our survey is shape noise at almost all significance levels and that spurious cluster detections due to projections of large-scale structures are negligible, except possibly for highly significantly detected peaks. Our full cluster catalog has 155 cluster candidates, 116 found with the Postman matched filter, 59 extended X-ray sources, and 31 shear selected potential clusters. Most of these cluster candidates were not previously known. The present catalog will be a solid foundation for studying possible selection effects in either method.
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