Automated rapid follow-up of swift Gamma-ray burst alerts at 15 GHz with the AMI large array

T. D. Staley, D. J. Titterington, R. P. Fender, J. D. Swinbank, A. J. van der Horst, A. Rowlinson, A. M M Scaife, K. J B Grainge, G. G. Pooley

    Research output: Contribution to journalArticlepeer-review


    We present 15-GHz follow-up radio observations of 11 Swift gamma-ray burst (GRB) sources, obtained with theArcminute Microkelvin Imager LargeArray (AMI-LA). The initial follow-up observation for each sourcewas made in a fully automated fashion; as a result four observations were initiated within 5 min of the GRB alert time stamp. These observations provide the first millijansky-level constraints on prolonged radio emission from GRBs within the first hour post-burst. While no radio emission within the first six hours after the GRB is detected in this preliminary analysis, radio afterglow is detected from one of the GRBs (GRB 120326A) on a time-scale of days. The observations were made as part of an ongoing programme to use AMI-LA as a systematic follow-up tool for transients at radio frequencies. In addition to the preliminary results, we explain how we have created an easily extensible automated follow-up system, describing new software tools developed for astronomical transient alert distribution, automatic requesting of target-of-opportunity observations and robotic control of the observatory. © 2012 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.
    Original languageEnglish
    Pages (from-to)3114-3120
    Number of pages6
    JournalMonthly Notices of the Royal Astronomical Society
    Issue number4
    Publication statusPublished - 2013


    • General
    • Instrumentation
    • Interferometers - methods
    • Miscellaneous -methods
    • Observational - virtual observatory tools - gamma-ray burst


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