模拟所有频率的偏振银河同步辐射，汉谟拉比代码
Simulating polarized Galactic synchrotron emission at all frequencies, the Hammurabi code
摘要：
我们提出了一个公开的代码称为汉谟拉比产生模拟偏振观测银河系同步辐射的望远镜，如LOFAR，SKA，普朗克和WMAP，基于模型输入的银河系磁场（GMF），宇宙射线密度分布和热电子密度。我们还提出了模拟UHECR偏转测量（UDM）地图的基础上模型输入的GMF。在未来，当UHECR源被确定，这将使我们能够定义UDM作为一个GMF探头以类似的方式极化无线电源允许我们定义旋转措施。为了证明代码的能力，模拟观察比较真实的数据作为一种手段来约束我们的模拟输入参数，重点是大规模的磁场属性。正如预期的那样，试图模拟同步加速器，UHECR偏转和RM输入参数的尝试表明，任何额外的观测数据集大大增加了对模型的约束。汉谟拉比码通过允许同时对几个不同的数据集进行模拟来解决这个问题，为磁化星际介质提供了更可靠的约束。
英文摘要：
We present a publicly available code called Hammurabi for generating mock polarized observations of Galactic synchrotron emission for telescopes like LOFAR, SKA, Planck and WMAP, based on model inputs for the Galactic magnetic field (GMF), the cosmic-ray density distribution and the thermal electron density. We also present mock UHECR deflection measure (UDM) maps based on model inputs for the GMF. In future, when UHECR sources are identified, this will allow us to define UDM as a GMF probe in a similar way as polarized radio sources permit us to define rotation measures. To demonstrate the code's abilities mock observations are compared to real data as a means to constrain the input parameters of our simulations with a focus on large-scale magnetic field properties. As expected, attempts at trying to model the synchrotron, UHECR deflection and RM input parameters, show that any additional observational data set greatly increases the constraints on the models. The hammurabi code addresses this by allowing to perform simulations of several different data sets simultaneously, providing the means for a more reliable constraint of the magnetized inter-stellar-medium.
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