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  PSR J1838-0537: Discovery of a young, energetic gamma-ray pulsar

Pletsch, H. J., Guillemot, L., Allen, B., Kramer, M., Aulbert, C., Fehrmann, H., et al. (2012). PSR J1838-0537: Discovery of a young, energetic gamma-ray pulsar. The Astrophysical Journal Letters, 755(1): L20. doi:10.1088/2041-8205/755/1/L20.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-D259-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-D25A-2
Genre: Journal Article

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Pletsch, H. J.1, Author              
Guillemot, L., Author
Allen, B.1, Author              
Kramer, M., Author
Aulbert, C.1, Author              
Fehrmann, H.1, Author              
Baring, M. G., Author
Camilo, F., Author
Caraveo, P. A., Author
Grove, J. E., Author
Kerr, M., Author
Marelli, M., Author
Ransom, S. M., Author
Ray, P. S., Author
Parkinson, P. M. Saz, Author
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE,General Relativity and Quantum Cosmology, gr-qc
 Abstract: We report the discovery of PSR J1838-0537, a gamma-ray pulsar found through a blind search of data from the Fermi Large Area Telescope (LAT). The pulsar has a spin frequency of 6.9 Hz and a frequency derivative of -2.2e-11 Hz/s, implying a young characteristic age of 4970 years and a large spin-down power of 5.9e36 erg/s. Follow-up observations with radio telescopes detected no pulsations, thus PSR J1838-0537 appears radio-quiet as viewed from Earth. In September 2009 the pulsar suffered the largest glitch so far seen in any gamma-ray-only pulsar, causing a relative increase in spin frequency of about 5.5e-6. After the glitch, during a putative recovery period, the timing analysis is complicated by the sparsity of the LAT photon data, the weakness of the pulsations, and the reduction in average exposure from a coincidental, contemporaneous change in the LAT's sky-survey observing pattern. The pulsar's sky position is coincident with the spatially extended TeV source HESS J1841-055 detected by the High Energy Stereoscopic System (H.E.S.S.). The inferred energetics suggest that HESS J1841-055 contains a pulsar wind nebula powered by the pulsar.

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 Dates: 2012-07-232012
 Publication Status: Published in print
 Pages: 6 pages, 3 figures. To appear in the Astrophysical Journal Letters
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 Identifiers: arXiv: 1207.5333
DOI: 10.1088/2041-8205/755/1/L20
URI: http://arxiv.org/abs/1207.5333
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Title: The Astrophysical Journal Letters
  Other : Astrophys. J. Lett.
Source Genre: Journal
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Publ. Info: Chicago, IL : University of Chicago Press for the American Astronomical Society
Pages: - Volume / Issue: 755 (1) Sequence Number: L20 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: /journals/resource/954922828215