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

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

2011-10-31

arxiv.org/abs/1110.6837v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

2011 Fermi Symposium proceedings - eConf C110509

Scientific paper

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.

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