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  The Einstein@Home search for radio pulsars and PSR J2007+2722 discovery

Allen, B., Knispel, B., Cordes, J. M., Deneva, J. S., Hessels, J. W. T., Anderson, D., et al. (2013). The Einstein@Home search for radio pulsars and PSR J2007+2722 discovery. Astrophysical Journal, 773(2): 91. doi:10.1088/0004-637X/773/2/91.

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Allen, B.1, Author           
Knispel, B.1, Author           
Cordes, J. M., Author
Deneva, J. S., Author
Hessels, J. W. T., Author
Anderson, D., Author
Aulbert, C.1, Author           
Bock, O.1, Author           
Brazier, A., Author
Chatterjee, S., Author
Demorest, P. B., Author
Eggenstein, H. B.2, Author
Fehrmann, H.1, Author           
Gotthelf, E. V., Author
Hammer, D., Author
Kaspi, V. M., Author
Kramer, M., Author
Lyne, A. G., Author
Machenschalk, B.1, Author           
McLaughlin, M. A., Author
Messenger, C.1, Author           Pletsch, H.1, Author           Ransom, S. M., AuthorStairs, I. H., AuthorStappers, B. W., AuthorBhat, N. D. R., AuthorBogdanov, S., AuthorCamilo, F., AuthorChampion, D. J., AuthorCrawford, F., AuthorDesvignes, G., AuthorFreire, P. C. C., AuthorHeald, G., AuthorJenet, F. A., AuthorLazarus, P., AuthorLee, K. J., Authorvan Leeuwen, J., AuthorLynch, R., AuthorPapa, M. A.2, Author           Prix, R.1, Author           Rosen, R., AuthorScholz, P., AuthorSiemens, X., AuthorStovall, K., AuthorVenkataraman, A., AuthorZhu, W., Author more..
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              
2Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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Free keywords: Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM, Astrophysics, Galaxy Astrophysics, astro-ph.GA, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: Einstein@Home aggregates the computer power of hundreds of thousands of volunteers from 192 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 PALFA 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 min. 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 can not prove that PSR J2007+2722 is at least ~500 kyr old. In the future, we expect that the massive computing power provided by volunteers should enable many additional radio pulsar discoveries.

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 Dates: 2013-02-282013
 Publication Status: Issued
 Pages: 32 pages, 19 figures, 7 tables
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 1303.0028
DOI: 10.1088/0004-637X/773/2/91
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Title: Astrophysical Journal
Source Genre: Journal
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Publ. Info: Chicago, IL : University of Chicago Press for the American Astronomical Society
Pages: - Volume / Issue: 773 (2) Sequence Number: 91 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_2