Pulsars and Fast Transients: Charting the Low-Frequency Radio Sky at High Time Resolution with LOFAR

Details Pulsars and Fast Transients: Charting the Low-Frequency Radio Sky at High Time Resolution with LOFAR Pulsars and Fast Transients: Charting the Low-Frequency Radio Sky at High Time Resolution with LOFAR

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21921404h&link_type=abstract

American Astronomical Society, AAS Meeting #219, #214.04

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The LOw Frequency ARray (LOFAR) is a radio interferometric telescope that promises to open a largely unexplored window on transient sources in the "radio sky", from timescales of nanoseconds to years. An important aspect of this will be the study of radio-emitting neutron stars in their various incarnations: slow pulsars, young pulsars, millisecond pulsars, magnetars, rotating radio transients, intermittent pulsars, et cetera. Pulsars and their brethren are the prototype of the more general "fast transients": sub-second, dispersed radio bursts which point the way to extreme, and potentially still unknown phenomena. For instance, prompt radio bursts from supernovae and other extra-galactic bursts have been hypothesized; these could prove to be powerful cosmological probes. I will discuss LOFAR's impressive ability to observe pulsars and to greatly enlarge the discovery space for (even rare) fast transients. I will also present the latest pulsar observations made during LOFAR's commissioning period, as well as our first scientific results. These are demonstrating the power of observing techniques that will be crucial for the next generation of radio telescopes as well as the effort to better understand the dynamic nature of the Universe.

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