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          Institute: MPI für Kernphysik     Collection: High-Energy Astrophysics     Display Documents

ID: 522337.0, MPI für Kernphysik / High-Energy Astrophysics
Extending the H.E.S.S. Galactic Plane Survey
Authors:Chaves, Ryan
Corporate body:for the Hess Collaboration
Research Context:hess
Name of Conference/Meeting:31th International Cosmic Ray Conference
Place of Conference/Meeting:Lodz, Poland
(Start) Date of Conference/Meeting
End Date of Conference/Meeting 
Audience:Experts Only
Abstract / Description:The High Energy Stereoscopic System (H.E.S.S.), located in the Khomas Highlands of Namibia, is an array of four imaging atmospheric-Cherenkov telescopes designed to detect gamma-rays in the very-high-energy (VHE; E > 100 GeV) domain. It is an ideal instrument for surveying the Galactic plane in search of new sources of VHE gamma-rays, due to its location in the Southern Hemisphere, its excellent sensitivity, and its large field-of-view. The H.E.S.S. Galactic Plane Survey (GPS) began in 2004 and initial observations of the Galactic plane resulted in the discovery of numerous VHE gamma-ray emitters. This original H.E.S.S. GPS covered the inner Galaxy within +/- 30 deg in longitude and +/- 3 deg in latitude. In the last four years, the longitudinal extent of the survey has more than doubled, now including the region l = 275 deg - 60 deg, and the exposure in the inner Galaxy has also been significantly increased. These efforts have consequently led to the discovery of many previously-unknown VHE gamma-ray sources with high statistical significance. We report on the current status of this ongoing, extended H.E.S.S. GPS, present the latest images of the survey region, and highlight the most recent discoveries.
Free Keywords:gamma-ray, Hess
Document Type:Talk at Event
Affiliations:MPI für Kernphysik/Group of W. Hofmann/Experimental High-Energy Astrophysics (M. Panter, G. Hermann)
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