Interpretation of Modern Radio Surveys: Test of the Unification Paradigm

这个项目将把几个现代无线电目录统一到一个数据库中，并使用各种形态和光谱标准对来源进行分类。结果类的性质将借助最先进的射电源演化和扩展模型进行分析，包括通过受限介质的射流传播，同步加速器，绝热和逆康普顿损失。这个新的数据集在样本量、深度和波长覆盖范围方面使每个旧的目录相形见绌，并且使用的参数的多样性允许稳健、自动、无监督的分类。将大量数据集的复杂统计分析与最先进的模型相结合，预计将提供定性的新见解，包括对射电源统一框架的可靠测试。该大型统一数据库将促进现代统计方法在天文数据分析中的新应用，并将及时向社会发布。它还将允许较小的、独立的、但基于发现的项目，这些项目非常适合本科生和研究生参与前沿研究。此外，该项目的网站将促进高中生接触当前的研究，使他们能够（重新）发现许多预期的科学结果。

AST-0507529IvezicThis project will unify several modern radio catalogs into a single database, and classify the sources using various morphological and spectral criteria. The properties of the resulting classes will be analyzed with the aid of state-of-the-art models for radio source evolution and expansion that include jet propagation through confining media, and synchrotron, adiabatic and inverse Compton losses. This new data set dwarfs every older catalog in terms of sample size, depth and wavelength coverage, and the diversity of parameters to be used allows for robust, automated, unsupervised classification. Combining sophisticated statistical analysis of a massive data set with state-of-the art models is expected to provide qualitatively new insights, including a robust test of the radio source unification framework.The large unified database will foster novel applications of modern statistical methods to astronomical data analysis, and will be promptly released to the community. It will also allow smaller, stand-alone but discovery-based projects that are ideal for engaging undergraduate and graduate students in cutting-edge research. In addition, the project web site will promote the exposure of high school students to current research by enabling them to (re)discover many of the expected scientific results.