Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-23T13:52:20.705Z Has data issue: false hasContentIssue false

Conducting the deepest all-sky pulsar survey ever: the all-sky High Time Resolution Universe survey

Published online by Cambridge University Press:  20 March 2013

Cherry Ng
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany email: cherryng@mpifr-bonn.mpg.de
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The extreme conditions found in and around pulsars make them fantastic natural laboratories, providing insights to a rich variety of fundamental physics and astronomy. To discover more pulsars we have begun the High Time Resolution Universe (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. The HTRU is an international collaboration with expertise shared among the MPIfR in Germany, ATNF/CASS and Swinburne University of Technology in Australia, University of Manchester in the UK and INAF in Italy. The HTRU survey uses multi-beam receivers and backends constructed with recent advancements in technology, providing unprecedentedly high time and frequency resolution, allowing us to probe deeper into the Galaxy than ever before. While a general overview of HTRU has been given by Keith at this conference, here we focus on three further aspects of HTRU discoveries and highlights. These include the ‘Diamond-planet pulsar’ binary J1719-1438 and a second similar system recently discovered. In addition, we provide specifications of the HTRU-North survey and an update of its status. In the last section we give an overview of the search for highly-accelerated binaries in the Galactic plane region. We discuss the computational challenges arising from the processing of the petabyte-sized HTRU survey data. We present an innovative segmented search technique which aims to increase our chances of discovering highly accelerated relativistic binary systems, potentially including pulsar-black-hole binaries.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013

References

Bailes, M., et al., 2011, Science, 333, 1717CrossRefGoogle Scholar
Barr, E., et al., submittedGoogle Scholar
Barr, E., et al., in prepGoogle Scholar
Belczynski, K., et al., 2002, The Astrophysical Journal, 572, 407CrossRefGoogle Scholar
Burgay, M., et al., 2003, Nature, 426, 531Google Scholar
Burke-Spolaor, S., et al., 2011, Monthly Notices of the Royal Astronomical Society, 416, 2465Google Scholar
Fruchter, A. S., Stinebring, D. R., & Taylor, J. H., 1988, Nature, 333, 237CrossRefGoogle Scholar
Haslam, C. G. T., Salter, C. J., Stoffel, H., & Wilson, W. E., 1982, Astronomy and Astrophysics Supplement Series, 47, 1Google Scholar
Kramer, M., et al., 2006, Science, 312, 549Google Scholar
Levin, L.et al., 2010, The Astrophysical Journal Letters, 721, 33CrossRefGoogle Scholar
Lyne, A. G., et al., 2004, Science, 303, 1153Google Scholar
Thornton, D., et al., in prepGoogle Scholar