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arXiv 1301.0506astro-ph.GAphysics.ins-det
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异常微波发射观测的大Radio Telescopes

Large Radio Telescopes for Anomalous Microwave Emission Observations

E. S. Battistelli, E. Carretti, P. de Bernardis, S. Masi

摘要:

我们在本文中讨论的异常微波发射(AME)的问题,根据正在进行的或未来的观测与世界上最大的全可控射电望远镜。对AME的高角分辨率观测将使天文学家能够大大提高对AME机制以及我们银河系中星际介质不同成分之间相互作用的认识。AME的河外观测也已经开始,高分辨率在这类观测中更为重要。当与IR尘埃发射互相关时,高角分辨率对于获得无偏结果也是至关重要的。观测频率的选择在连续观测中也是至关重要的。我们计算了一个价值函数,占信噪比(SNR)在AME观察给定的当前国家的最先进的知识和技术。我们还包括在我们的价值函数的情况下,多频观测的频率依赖性。我们简要地提到并比较了世界上四个最大的射电望远镜的性能,并希望每个射电望远镜的观测计划都尽可能地密集。

英文摘要:

We discuss in this paper the problem of the Anomalous Microwave Emission (AME) in the light of ongoing or future observations to be performed with the largest fully steerable radio telescope in the world. High angular resolution observations of the AME will enable astronomers to drastically improve the knowledge of the AME mechanisms as well as the interplay between the different constituents of the interstellar medium in our galaxy. Extragalactic observations of the AME have started as well, and high resolution is even more important in this kind of observations. When cross-correlating with IR-dust emission, high angular resolution is also of fundamental importance in order to obtain unbiased results. The choice of the observational frequency is also of key importance in continuum observation. We calculate a merit function that accounts for the signal-to-noise ratio (SNR) in AME observation given the current state-of-the-art knowledge and technology. We also include in our merit functions the frequency dependence in the case of multifrequency observations. We briefly mention and compare the performance of four of the largest radiotelescopes in the world and hope the observational programs in each of them will be as intense as possible.

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。

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