Discovery of very-high-energy gamma-ray emission from the vicinity of PSR 
J1831-952 with H.E.S.S

Sheidaei, F.; Djannati-Ataï, A.; Gast, Henning; Collaboration, for the HESS

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Discovery of very-high-energy gamma-ray emission from the vicinity of PSR J1831-952 with H.E.S.S

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Gast, Henning
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Citation

Sheidaei, F., Djannati-Ataï, A., Gast, H., & Collaboration, f. t. H. (2011). Discovery of very-high-energy gamma-ray emission from the vicinity of PSR J1831-952 with H.E.S.S. In 2011 Fermi Symposium proceedings - eConf.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-4962-4

Abstract

We report on the latest discovery of an extended Very High Energy (VHE) gamma-ray source near the 67 ms pulsar PSR J1831-0952 during the H.E.S.S. Galactic Plane Survey (GPS). The dispersion measure distance of the pulsar (4.3 kpc) would imply that less than 1% of its spin-down energy is required to provide the observed VHE luminosity of the source. No other plausible counterparts have yet been found through preliminary multi- wavelength searches. The most likely scenario is that the VHE emission originates from the -yet unseen at other wavelengths-wind nebula of PSR J1831-0952. If so this would constitute another case of a gamma-ray discovered pulsar wind nebula.