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Pulsar Discovery by Global Volunteer Computing

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arxiv 1008.2172 v1 pith:5XUPTOQF submitted 2010-08-12 astro-ph.GA astro-ph.IM

Pulsar Discovery by Global Volunteer Computing

B. Knispel , B. Allen , J. M. Cordes , J. S. Deneva , D. Anderson , C. Aulbert , N. D. R. Bhat , O. Bock
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S. Bogdanov A. Brazier F. Camilo D. J. Champion S. Chatterjee F. Crawford P. B. Demorest H. Fehrmann P. C. C. Freire M. E. Gonzalez D. Hammer J. W. T. Hessels F. A. Jenet L. Kasian V. M. Kaspi M. Kramer P. Lazarus J. van Leeuwen D. R. Lorimer A. G. Lyne B. Machenschalk M. A. McLaughlin C. Messenger D. J. Nice M. A. Papa H. J. Pletsch R. Prix S. M. Ransom X. Siemens I. H. Stairs B. W. Stappers K. Stovall A. Venkataraman
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keywords pulsarcomputingdatalikelypowerspinvolunteersadditional
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Einstein@Home aggregates the computer power of hundreds of thousands of volunteers from 192 countries to "mine" large data sets. It has now found a 40.8 Hz isolated pulsar in radio survey data from the Arecibo Observatory taken in February 2007. Additional timing observations indicate that this pulsar is likely a disrupted recycled pulsar. PSR J2007+2722's pulse profile is remarkably wide with emission over almost the entire spin period; the pulsar likely has closely aligned magnetic and spin axes. The massive computing power provided by volunteers should enable many more such discoveries.

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