论文标题
北部交叉快速无线电爆发项目。 I. 408 MHz的概述和试点观察
The Northern Cross Fast Radio Burst project. I. Overview and pilot observations at 408 MHz
论文作者
论文摘要
快速无线电爆发仍然是最神秘的天体物理来源之一。在过去的几年中，由于新射电望远镜的能力和现有射击的翻新功能，观察结果取得了显着进步。在这里，我们描述了在400-416〜MHz频带中运行的Northern Cross Radio望远镜的升级，其最终目标是将阵列变成专用的仪器，以调查天空以进行快速无线电爆发。我们提出了PULSAR B0329+54的测试观察结果，以表征系统性能和预测可检测性。目前对系统的观察仍然受到适度的天空覆盖范围（$ \ sim 9.4 $ 〜d $^2 $）的限制，并且由于每个频率通道内的高分散度量事件的涂抹而有偏见。然而，在最后的，升级的配置中，望远镜将能够对$ \ sim 350 $〜$〜$^2 $ intantanateion Fielt Fielt Fielt Fielt Field Fielt Fielt Fielt Fielt Fielt Fielt Fielt Fielt Fielt 5 $，具有（几乎常数的）$ \ sim 760 \，（sim 760 \，（τ/fims 760））（τ/fims）（τ/{
Fast radio bursts remain one of the most enigmatic astrophysical sources. Observations have significantly progressed over the last few years, thanks to the capabilities of new radio telescopes and the refurbishment of existing ones. Here we describe the upgrade of the Northern Cross radio telescope, operating in the 400-416~MHz frequency band, with the ultimate goal of turning the array into a dedicated instrument to survey the sky for fast radio bursts. We present test observations of the pulsar B0329+54 to characterize the system performance and forecast detectability. Observations with the system currently in place are still limited by modest sky coverage ($\sim 9.4$~deg$^2$) and biased by smearing of high dispersion measure events within each frequency channels. In its final, upgraded configuration, however, the telescope will be able to carry out unbiased fast radio burst surveys over a $\sim 350$~deg$^2$ instantaneous field of view up to $z \sim 5$, with a (nearly constant) $\sim 760 \, (τ/{\rm ms})^{-0.5}$~mJy rms sensitivity.
