Commissioning of ALFABURST: initial tests and results
Kaustubh Rajwade, Jayanth Chennamangalam, Duncan Lorimer, Aris, Karastergiou, Dan Werthimer, Andrew Siemion, David MacMahon, Jeff Cobb,, Christopher Williams, Wes Armour

TL;DR
This paper reports on the initial testing and commissioning results of ALFABURST, a real-time FRB detection instrument using the Arecibo telescope's 7-beam array, aiming to better understand FRBs.
Contribution
It introduces ALFABURST, a new instrument for real-time FRB detection, and presents its initial on-sky test results during commissioning.
Findings
Successful initial on-sky tests conducted
ALFABURST is now available for commensal observations
Demonstrated capability to detect FRBs in real-time
Abstract
Fast Radio Bursts (FRBs) are apparently one-time, relatively bright radio pulses that have been observed in recent years. The origin of FRBs is currently unknown and many instruments are being built to detect more of these bursts to better characterize their physical properties and identify the source population. ALFABURST is one such instrument. ALFABURST takes advantage of the 7-beam Arecibo L-band Feed Array (ALFA) receiver on the 305-m Arecibo Radio Telescope in Puerto Rico, to detect FRBs in real-time at L-band (1.4 GHz). We present the results of recent on-sky tests and observations undertaken during the commissioning phase of the instrument. ALFABURST is now available for commensal observations with other ALFA projects.
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