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Humboldt-Universität zu Berlin - Mathematisch-Naturwissen­schaft­liche Fakultät - Experimentelle Elementarteilchenphysik

Humboldt-Universität zu Berlin | Mathematisch-Naturwissen­schaft­liche Fakultät | Institut für Physik | Experimentelle Elementarteilchenphysik | H.E.S.S. | Talks & Papers | Discovery of very-high-energy gamma-ray emission from the vicinity of PSR J1913+1011 with HESS

The H Collaboration (2008)

Discovery of very-high-energy gamma-ray emission from the vicinity of PSR J1913+1011 with HESS

aap, 484:435-440.

The HESS experiment, an array of four Imaging Atmospheric Cherenkov Telescopes with high sensitivity and large field-of-view, has been used to search for emitters of very-high-energy (VHE, >100 GeV) gamma-rays along the Galactic plane, covering the region 30° < l < 60°, 280° < l < 330°, and -3° < b < 3°. In this continuation of the HESS Galactic Plane Scan, a new extended VHE gamma-ray source was discovered at alpha^2000=19^h12^m49^s, delta^2000=+10°09´06´´(HESS J1912+101). Its integral flux between 1-10 TeV is 10% of the Crab Nebula flux in the same energy range. The measured energy spectrum can be described by a power law dN/dE ˜ E^-Gamma with a photon index Gamma = 2.7 ± 0.2^stat± 0.3^sys. HESS J1912+101 is plausibly associated with the high spin-down luminosity pulsar PSR J1913+1011. We also discuss associations with an as yet unconfirmed SNR candidate proposed from low frequency radio observation and/or with molecular clouds found in ^13CO data.

Provided by the SAO/NASA Astrophysics Data System