A PRESTO-based Parallel Pulsar Search Pipeline Used for FAST Drift Scan Data

Autor:	Yu, Qiuyu, Pan, Zhichen, Qian, Lei, Wang, Shen, Yue, Youling, Huang, Menglin, Hao, Qiaoli, You, Shanping, Peng, Bo, Zhu, Yan, Zhang, Lei, Liu, Zhijie
Rok vydání:	2019
Předmět:	Astrophysics - Instrumentation and Methods for Astrophysics Astrophysics - Astrophysics of Galaxies
Druh dokumentu:	Working Paper
DOI:	10.1088/1674-4527/20/6/91
Popis:	We developed a pulsar search pipeline based on PRESTO (PulsaR Exploration and Search Toolkit). This pipeline simply runs dedispersion, FFT (Fast Fourier Transformation), and acceleration search in process-level parallel to shorten the processing time. With two parallel strategies, the pipeline can highly shorten the processing time in both the normal searches or acceleration searches. This pipeline was first tested with PMPS (Parkes Multibeam Pulsar Survery) data and discovered two new faint pulsars. Then, it was successfully used in processing the FAST (Five-hundred-meter Aperture Spherical radio Telescope) drift scan data with tens of new pulsar discoveries up to now. The pipeline is only CPU-based and can be easily and quickly deployed in computing nodes for testing purposes or data processes. Comment: 10 pages, 2 figures, accepted by Research in Astronomy and Astrophysics (RAA)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1912.12807 Zobrazit plný text záznamu View this record from Arxiv