Observing transients with LOFAR and AARTFAAC

The Low Frequency Array (LOFAR) is a new European radio telescope operating at 30-240MHz. LOFAR will offer an exciting opportunity to study the radio emission from GRBs at timescales from first detection until years afterwards. I will describe the features LOFAR will be able to use to study GRBs including:
• Dedicated and commensal real-time monitoring programmes enabling detection and monitoring of radio afterglows.
• Fast, automated response to targets of opportunity.
• A raw data buffer, providing the ability to "re-observe" past events at high time, spectral and spatial resolution.
• Rapidly sharing newly detected transients using VOEvents.
Additionally, the AARTFAAC Project will build upon the core LOFAR capabilities to provide an all-sky real-time monitor for bright transients.