宇宙背景成像仪场中NVSS前景源的多频测量。I.数据发布
Multi-frequency measurements of the NVSS foreground sources in the Cosmic Background Imager fields. I. Data release
摘要：
本文介绍了用Effelsberg 100 m望远镜对5998个NVSS射电源样品在4.85 GHz和10.45 GHz处的通量密度测量结果。最初的动机是需要识别NVSS射电源，这些射电源可能在宇宙背景成像仪实验运行的频率范围内产生显著的污染通量。实现这一具有挑战性的目标的一种有效方法是通过外推其无线电频谱来计算这些源的高频通量密度。这是由根据NVSS在1.4 GHz处的条目和用100米Effelsberg望远镜在4.85 GHz和10.45 GHz处进行的测量而测量的三点光谱指数确定的。这些测量是重要的，因为目标样品探测通量密度分布的薄弱部分，因此决定提供数据。我们提出的表与通量密度测量的3434源，显示没有混淆，允许可靠的测量，他们的探测率，他们的光谱指数分布和解释，令人满意地解释了观察到的不确定性。
英文摘要：
We present the results of the flux density measurements at 4.85 GHz and 10.45 GHz of a sample of 5998 NVSS radio sources with the Effelsberg 100 m telescope. The initial motivation was the need to identify the NVSS radio sources that could potentially contribute significant contaminating flux in the frequency range at which the Cosmic Background Imager experiment operated. An efficient way to achieve this challenging goal has been to compute the high frequency flux density of those sources by extrapolating their radio spectrum. This is determined by the three-point spectral index measured on the basis of the NVSS entry at 1.4 GHz and the measurements at 4.85 GHz and 10.45 GHz carried out with the 100 m Effelsberg telescope. These measurements are important since the targeted sample probes the weak part of the flux density distribution, hence the decision to make the data available. We present the table with flux density measurements of 3434 sources that showed no confusion allowing reliable measurements, their detection rates, their spectral index distribution and an interpretation which explains satisfactorily the observed uncertainties.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
