In:
Journal of Astronomical Instrumentation, World Scientific Pub Co Pte Ltd, Vol. 05, No. 04 ( 2016-12)
Abstract:
The Amsterdam–ASTRON Radio Transients Facility and Analysis Center (AARTFAAC) all-sky monitor is a sensitive, real-time transient detector based on the Low Frequency Array (LOFAR). It generates images of the low frequency radio sky with spatial resolution of tens of arcmin, MHz bandwidths, and a time cadence of a few seconds, while simultaneously but independently observing with LOFAR. The image timeseries is then monitored for short and bright radio transients. On detection of a transient, a low latency trigger will be generated for LOFAR, which can interrupt its schedule to carry out follow-up observations of the trigger location at high sensitivity and resolutions. In this paper, we describe our heterogeneous, hierarchical design to manage the 259[Formula: see text]Gbps raw data rate and large scale computing to produce real-time images with minimum latency. We discuss the implementation of the instrumentation, its performance and scalability.
Type of Medium:
Online Resource
ISSN:
2251-1717
,
2251-1725
DOI:
10.1142/S2251171716410087
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2016
detail.hit.zdb_id:
2711248-2
SSG:
16,12
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