DSA-10: A Prototype Array for Localizing Fast Radio Bursts

Abstract

The Deep Synoptic Array 10 dish prototype is an instrument designed to detect and localise fast radio bursts with arcsecond accuracy in real time. Deployed at Owens Valley Radio Observatory, it consists of ten 4.5m diameter dishes, equipped with a 250MHz bandwidth dual polarisation receiver, centered at 1.4GHz. The 20 input signals are digitised and field programmable gate arrays are used to transform the data to the frequency domain and transmit it over ethernet. A series of computer servers buffer both raw data samples and perform a real time search for fast radio bursts on the incoherent sum of all inputs. If a pulse is detected, the raw data surrounding the pulse is written to disk for coherent processing and imaging. The prototype system was operational from June 2017 - February 2018 conducting a drift scan search. Giant pulses from the Crab pulsar were used to test the detection and imaging pipelines. The 10-dish prototype system was brought online again in March 2019, and will gradually be replaced with the new DSA-110, a 110-dish system, over the next two years to improve sensitivity and localisation accuracy.

10 pages, 13 figures, accepted by MNRAS

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• STARE2: Detecting Fast Radio Bursts in the Milky Way
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• Constraining the Cosmic Baryon Distribution with Fast Radio Burst Foreground Mapping
• The discovery and scientific potential of fast radio bursts
• Exploring the epoch of hydrogen reionization using FRBs
• On the Fast Radio Burst and Persistent Radio Source Populations
• The Commensal Real-time ASKAP Fast Transient incoherent-sum survey
• FLIMFLAM DR1: The First Constraints on the Cosmic Baryon Distribution from 8 FRB sightlines
• Magnetic Fields on FIRE: Comparing B-fields in the multiphase ISM and CGM of Simulated L${}_{\ast }$ Galaxies to Observations
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• A Data-Driven Technique Using Millisecond Transients to Measure the Milky Way Halo
• Multiwavelength observations of Fast Radio Bursts
• The Cosmic Baryon Partition between the IGM and CGM in the SIMBA Simulations
• A sample of Fast Radio Bursts discovered and localised with MeerTRAP at the MeerKAT telescope
• Zwicky Transient Facility constraints on the optical emission from the nearby repeating FRB 180916.J0158+65
• Radiation Forces Constrain the FRB Mechanism
• The Northern Cross Fast Radio Burst project. I. Overview and pilot observations at 408 MHz
• Cosmic Anisotropy and Fast Radio Bursts
• Reconstructing the Fraction of Baryons in the Intergalactic Medium with Fast Radio Bursts via Gaussian Processes
• Combined Limit on the Photon Mass with Nine Localized Fast Radio Bursts
• Using the Sun to Measure the Primary Beam Response of the Canadian Hydrogen Intensity Mapping Experiment
• Estimating fast transient detection pipeline efficiencies at UTMOST via real-time injection of mock FRBs
• Effect of Redshift Distributions of Fast Radio Bursts on Cosmological Constraints
• Systematic performance of the ASKAP Fast Radio Burst search algorithm
• On the Circular Polarisation of Repeating Fast Radio Bursts
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• The Environments of Fast Radio Bursts Viewed Using Adaptive Optics
• The impact of the FREDDA dedispersion algorithm on $H_0$ estimations with FRBs
• FRB Line-of-sight Ionization Measurement From Lightcone AAOmega Mapping Survey: the First Data Release
• Baryonic Post-Processing of N-body Simulations, with Application to Fast Radio Bursts
• Optimization and Commissioning of the EPIC Commensal Radio Transient Imager for the Long Wavelength Array
• How limiting is optical follow-up for fast radio burst applications? Forecasts for radio and optical surveys
• Robust Assessment of Clustering Methods for Fast Radio Transient Candidates
• Constrains on optical emission of FAST-detected FRB 20181130B with GWAC synchronized observations
• 21 cm Intensity Mapping with the DSA-2000
• 3D Localization of FRB 20190425A for Its Potential Host Galaxy and Implications
• Search for Low-Energy Signals from Fast Radio Bursts with the Borexino Detector