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

Kocz, J. and Ravi, V. and Catha, M. and D'Addario, L. and Hallinan, G. and Hobbs, R. and Kulkarni, S. and Shi, J. and Vedantham, H. and Weinreb, S. and Woody, D. (2019) DSA-10: A Prototype Array for Localizing Fast Radio Bursts. Monthly Notices of the Royal Astronomical Society, 489 (1). pp. 919-927. ISSN 0035-8711. doi:10.1093/mnras/stz2219.

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The Deep Synoptic Array 10-dish prototype (DSA-10) is an instrument designed to detect and localize fast radio bursts with arcsecond accuracy in real time. Deployed at Owens Valley Radio Observatory, it consists of ten 4.5-m diameter dishes, equipped with a 250-MHz bandwidth dual polarization receiver, centred at 1.4 GHz. The 20 input signals are digitized 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 are written to disc for coherent processing and imaging. The prototype system was operational from 2017 June to 2018 February 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 2019 March, and will gradually be replaced with the new DSA-110, a 110-dish system, over the next 2 yr to improve sensitivity and localization accuracy.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Kocz, J.0000-0003-0249-7586
Ravi, V.0000-0002-7252-5485
Hallinan, G.0000-0002-7083-4049
Kulkarni, S.0000-0001-5390-8563
Vedantham, H.0000-0002-0872-181X
Weinreb, S.0000-0002-9353-6204
Additional Information:© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Accepted 2019 August 6. Received 2019 August 4; in original form 2019 June 11. Published: 12 August 2019. A portion of this research was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a President and Directors Fund grant and under a contract with the National Aeronautics and Space Administration. Copyright 2019 California Institute of Technology. Government sponsorship acknowledged.
Group:Astronomy Department, Division of Geological and Planetary Sciences
Funding AgencyGrant Number
Subject Keywords:instrumentation: interferometers – instrumentation: miscellaneous
Issue or Number:1
Record Number:CaltechAUTHORS:20190624-143512060
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Official Citation:J Kocz, V Ravi, M Catha, L D’Addario, G Hallinan, R Hobbs, S Kulkarni, J Shi, H Vedantham, S Weinreb, D Woody, DSA-10: a prototype array for localizing fast radio bursts, Monthly Notices of the Royal Astronomical Society, Volume 489, Issue 1, October 2019, Pages 919–927,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96673
Deposited By: Tony Diaz
Deposited On:25 Jun 2019 18:03
Last Modified:14 Feb 2023 21:32

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