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  Einstein@Home discovery of four young gamma-ray pulsars in Fermi LAT data

Pletsch, H. J., Guillemot, L., Allen, B., Anderson, D., Aulbert, C., Bock, O., et al. (2013). Einstein@Home discovery of four young gamma-ray pulsars in Fermi LAT data. The Astrophysical Journal Letters, 779: L11. doi:10.1088/2041-8205/779/1/L11.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-BEFA-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-BEFB-4
Genre: Journal Article

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 Creators:
Pletsch, H. J.1, Author              
Guillemot, L., Author
Allen, B.1, Author              
Anderson, D., Author
Aulbert, C.1, Author              
Bock, O.1, Author              
Champion , D. J., Author
Eggenstein, H. B., Author
Fehrmann, H.1, Author              
Hammer , D., Author
Karuppusamy, R., Author
Keith, M., Author
Kramer, M., Author
Machenschalk, B.1, Author              
Ng, C., Author
Papa, M. A.2, Author              
Ray, P. S., Author
Siemens, X., Author
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, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: We report the discovery of four gamma-ray pulsars, detected in computing-intensive blind searches of data from the Fermi Large Area Telescope (LAT). The pulsars were found using a novel search approach, combining volunteer distributed computing via Einstein@Home and methods originally developed in gravitational-wave astronomy. The pulsars PSRs J0554+3107, J1422-6138, J1522-5735, and J1932+1916 are young and energetic, with characteristic ages between 35 and 56 kyr and spin-down powers in the range $6\times10^{34}$ - $10^{36}$ erg s$^{-1}$. They are located in the Galactic plane and have rotation rates of less than 10 Hz, among which the 2.1 Hz spin frequency of PSR J0554+3107 is the slowest of any known gamma-ray pulsar. For two of the new pulsars, we find supernova remnants coincident on the sky and discuss the plausibility of such associations. Deep radio follow-up observations found no pulsations, suggesting that all four pulsars are radio-quiet as viewed from Earth. These discoveries, the first gamma-ray pulsars found by volunteer computing, motivate continued blind pulsar searches of the many other unidentified LAT gamma-ray sources.

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 Dates: 2013-11-252013
 Publication Status: Published in print
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 Identifiers: arXiv: 1311.6427
DOI: 10.1088/2041-8205/779/1/L11
URI: http://arxiv.org/abs/1311.6427
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Title: The Astrophysical Journal Letters
Source Genre: Journal
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Pages: - Volume / Issue: 779 Sequence Number: L11 Start / End Page: - Identifier: -