Searching for pulsars with phase characteristics
arXiv:2211.08789 · doi:10.1088/1674-4527/aca374
Abstract
We present a method by using the phase characteristics of radio observation data for pulsar search and candidate identification. The phase characteristics are relations between the pulsar signal and the phase correction in the frequency-domain, and we regard it as a new search diagnostic characteristic. Based on the phase characteristics, a search method is presented: calculating DM (dispersion measure) -- frequency data to select candidate frequencies, and then confirming of candidates by using the broadband characteristics of pulsar signals. Based on this method, we performed a search test on short observation data of M15 and M71, which were observed by Five-hundred-meter Aperture spherical radio Telescope (FAST), and some of the Galactic Plane Pulsar Snapshot survey (GPPS) data. Results show that it can get similar search results to PRESTO (PulsaR Exploration and Search TOolkit) while having a faster processing speed.
References in corpus (17)
- Fourier Techniques for Very Long Astrophysical Time Series Analysis
- The Fundamental Performance of FAST with 19-beam Receiver at L Band
- Fifty Years of Pulsar Candidate Selection: From simple filters to a new principled real-time classification approach
- The FAST Galactic Plane Pulsar Snapshot survey: I. Project design and pulsar discoveries
- Accelerating incoherent dedispersion
- A New Search Technique for Short Orbital Period Binary Pulsars
- High-Precision Timing of 5 Millisecond Pulsars: Space Velocities, Binary Evolution and Equivalence Principles
- A 1.4-GHz Arecibo Survey for Pulsars in Globular Clusters
- FAST: Its Scientific Achievements and Prospects
- FAST Globular Cluster Pulsar Survey: Twenty-Four Pulsars Discovered in Fifteen Globular Clusters
- A Binary Millisecond Pulsar in Globular Cluster NGC6544
- Real-Time Dedispersion for Fast Radio Transient Surveys, using Auto Tuning on Many-Core Accelerators
- A Framework for Assessing the Performance of Pulsar Search Pipelines
- Discovery of 10 pulsars in an Arecibo drift-scan survey
- Searching for Pulsars in Close Binary Systems
- A PRESTO-based Parallel Pulsar Search Pipeline Used for FAST Drift Scan Data
- Fourier-domain dedispersion