Statistics – Computation
Scientific paper
Jul 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011yera.confe..29n&link_type=abstract
The 41st Young European Radio Astronomers Conference, held at University of Manchester/Jodrell Bank Observatory, 18-20 July 2011
Statistics
Computation
Scientific paper
The extreme conditions found in and around pulsars make them fantastic natural laboratories, providing insights to a rich variety of aspects of fundamental physics and astronomy. To discovery more pulsars we have begun the High Time Resolution Universe Legacy (HTRU) survey; a blind survey of the northern sky with the 100-m Effelsberg radio telescope in Germany and a twin survey of the southern sky with the 64-m Parkes radio telescope in Australia. Blind pulsar surveys are the only way to significantly increase the known population of pulsars in an unbiased way. Surveys of this type allow us to remain sensitive to all varieties of pulsars, ranging from the slowly rotating isolated magnetars to exotic relativistic binary systems such as a theoretical pulsar-black hole binary. In particular, the HTRU survey uses multi-beam receivers and backends constructed with recent advancements in technology, providing unprecedentedly high time and frequency resolution. Here I will summarise the scientific motivation and the specifications of the HTRU survey. I will provide an overview of the standard pulsar searching pipeline, as well as the innovative segmented search technique which aims to increase our chances of discoveries of highly accelerated relativistic binary systems. I will discuss the computational challenges arising from the processing of the petabyte-sized HTRU survey data and our current progress in the survey.
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