论文标题

快速的瞬态后端,以tianlai Dish Fathfinder阵列检测FRB

A Fast Transient Backend to Detect FRBs with the Tianlai Dish Pathfinder Array

论文作者

Yu, Zijie, Deng, Furen, Sun, Shijie, Niu, Chenhui, Li, Jixia, Wu, Fengquan, Wang, Wei-Yang, Wang, Yougang, Feng, Hui, Shu, Lin, Hao, Jie, Ansari, Reza, Stebbins, Albert, Chen, Xuelei

论文摘要

田莱碟探路者阵列是一个无线电干涉仪阵列,该阵列由16米盘天线组成。原始的数字后端集成时间是在秒级上,专为HI强度映射实验而设计。添加了带有毫秒响应的新的数字后端,以使其能够在观察过程中搜索快速无线电爆发(FRB)。本文描述了此后端的设计和校准以及其实时搜索管道。它能够为每个线性极化形成16个数字梁,覆盖19.6平方度的面积。搜索管道能够实时搜索,记录和分类的FRB。在调试中,我们成功地捕获了脉冲星PSR B0329+54和B2021+51的信号脉冲。

The Tianlai Dish Pathfinder array is a radio interferometer array consisting of 16 six meter dish antennas. The original digital backend integration time is at the seconds level, designed for HI intensity mapping experiment. A new digital backend with millisecond response is added to enable it to search for fast radio burst (FRB) during its observations. The design and calibration of this backend, and the real time search pipeline for it are described in this paper. It is capable of forming 16 digital beams for each linear polarisation, covering an area of 19.6 square degrees. The search pipeline is capable of searching for, recording and classifying FRBs automatically in real time. In commissioning, we succeeded in capturing the signal pulses from the pulsars PSR B0329+54 and B2021+51.

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