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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The Einstein@Home search for radio pulsars and PSR J2007+2722 discovery
Astrophysical Journal, Volume 773, No. 2, Article 91, Year 2013
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Description
Einstein@Home aggregates the computer power of hundreds of thousands of volunteers from 193 countries, to search for new neutron stars using data from electromagnetic and gravitational-wave detectors. This paper presents a detailed description of the search for new radio pulsars using Pulsar ALFA survey data from the Arecibo Observatory. The enormous computing power allows this search to cover a new region of parameter space; it can detect pulsars in binary systems with orbital periods as short as 11 minutes. We also describe the first Einstein@Home discovery, the 40.8 Hz isolated pulsar PSR J2007+2722, and provide a full timing model. PSR J2007+2722's pulse profile is remarkably wide with emission over almost the entire spin period. This neutron star is most likely a disrupted recycled pulsar, about as old as its characteristic spin-down age of 404 Myr. However, there is a small chance that it was born recently, with a low magnetic field. If so, upper limits on the X-ray flux suggest but cannot prove that PSR J2007+2722 is at least ∼100 kyr old. In the future, we expect that the massive computing power provided by volunteers should enable many additional radio pulsar discoveries. © 2013. The American Astronomical Society. All rights reserved.
Authors & Co-Authors
Allen, Bruce
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
United States, Milwaukee
University of Wisconsin-milwaukee
Knispel, Benjamin
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Cordes, James M.
United States, Ithaca
Cornell University
Deneva, Julia S.
Puerto Rico, Rico
Arecibo Observatory
Hessels, Jason W.T.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Netherlands, Amsterdam
Universiteit Van Amsterdam
Anderson, David P.
United States, Berkeley
University of California, Berkeley
Aulbert, Carsten
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Bock, Oliver
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Brazier, Adam
United States, Ithaca
Cornell University
Chatterjee, S.
United States, Ithaca
Cornell University
Demorest, Paul B.
United States, Charlottesville
National Radio Astronomy Observatory
Eggenstein, Heinz Bernd
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Fehrmann, Henning
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Gotthelf, Eric V.G.
United States, New York
Columbia University
Kaspi, Victoria M.
Canada, Montreal
Université Mcgill
Kramer, Michael
Germany, Bonn
Max Planck Institute for Radio Astronomy
Lyne, Andrew G.
United Kingdom, Manchester
The University of Manchester
MacHenschalk, Bernd
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
McLaughlin, Maura Ann
United States, Morgantown
West Virginia University
Pletsch, Holger J.
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Ransom, Scott M.
United States, Charlottesville
National Radio Astronomy Observatory
Stairs, Ingrid H.
Canada, Vancouver
The University of British Columbia
Stappers, Benjamin W.
United Kingdom, Manchester
The University of Manchester
Bhat, N. D. R.
Australia, Hawthorn
Swinburne University of Technology
Australia, Perth
International Centre for Radio Astronomy Research
Bogdanov, Slavko
United States, New York
Columbia University
Camilo, Fernando
Puerto Rico, Rico
Arecibo Observatory
United States, New York
Columbia University
Champion, David J.
Germany, Bonn
Max Planck Institute for Radio Astronomy
Crawford, Fronefield M.
United States, Lancaster
Franklin and Marshall College, Lancaster
Desvignes, Gregory
United States, Berkeley
University of California, Berkeley
Freire, Paulo C.C.
Germany, Bonn
Max Planck Institute for Radio Astronomy
Heald, George H.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Jenet, Frederick A.
United States, Brownsville
University of Texas at Brownsville and Texas Southmost College
Lazarus, Patrick
Germany, Bonn
Max Planck Institute for Radio Astronomy
Lee, Kejia
Germany, Bonn
Max Planck Institute for Radio Astronomy
van Leeuwen, Joeri
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Netherlands, Amsterdam
Universiteit Van Amsterdam
Lynch, Ryan S.
Canada, Montreal
Université Mcgill
Papa, Maria Alessandra
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
United States, Milwaukee
University of Wisconsin-milwaukee
Rosen, Rachel
United States, Charlottesville
Nrao
Scholz, Paul
Canada, Montreal
Université Mcgill
Siemens, Xavier
United States, Milwaukee
University of Wisconsin-milwaukee
Stovall, Kevin
United States, Brownsville
University of Texas at Brownsville and Texas Southmost College
Venkataraman, Arun
Puerto Rico, Rico
Arecibo Observatory
Zhu, Weiwei
Canada, Vancouver
The University of British Columbia
Statistics
Citations: 51
Authors: 43
Affiliations: 20
Identifiers
Doi:
10.1088/0004-637X/773/2/91
ISSN:
0004637X
Research Areas
Environmental
Study Design
Cross Sectional Study
Study Approach
Quantitative