Show simple item record

dc.contributor.authorAbramowski, A.
dc.contributor.authorBöttcher, M.
dc.contributor.authorDavids, I.D.
dc.contributor.authorIvascenko, A.
dc.contributor.authorKruger, P.P.
dc.contributor.authorPekeur, N.W.
dc.contributor.authorSpanier, F.
dc.contributor.authorSushch, I.
dc.contributor.authorVenter, C.
dc.contributor.authorVorster, M.
dc.contributor.authorH.E.S.S. Collaboration
dc.date.accessioned2019-03-28T08:31:36Z
dc.date.available2019-03-28T08:31:36Z
dc.date.issued2014
dc.identifier.citationAbramowski, A. et al. 2014. Diffuse galactic gamma-ray emission with H.E.S.S. Physical review D, 90(12): Article no 122007. [https://doi.org/10.1103/PhysRevD.90.122007]en_US
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/32084
dc.identifier.urihttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.90.122007
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.90.122007
dc.description.abstractDiffuse γ-ray emission is the most prominent observable signature of celestial cosmic-ray interactions at high energies. While already being investigated at GeVenergies over several decades, assessments of diffuse γ-ray emission at TeVenergies remain sparse. After completion of the systematic survey of the inner Galaxy, the H.E.S.S. experiment is in a prime position to observe large-scale diffuse emission at TeVenergies. Data of the H.E.S.S. Galactic Plane Survey are investigated in regions off known γ-ray sources. Corresponding γ-ray flux measurements were made over an extensive grid of celestial locations. Longitudinal and latitudinal profiles of the observed γ-ray fluxes show characteristic excess emission not attributable to known γ-ray sources. For the first time large-scale γ-ray emission along the Galactic plane using imaging atmospheric Cherenkov telescopes has been observed. While the background subtraction technique limits the ability to recover modest variation on the scale of the H.E.S.S. field of view or larger, which is characteristic of the inverse Compton scatter-induced Galactic diffuse emission, contributions of neutral pion decay as well as emission from unresolved γ-ray sources can be recovered in the observed signal to a large fraction. Calculations show that the minimum γ-ray emission from π0 decay represents a significant contribution to the total signal. This detection is interpreted as a mix of diffuse Galactic γ-ray emission and unresolved sourcesen_US
dc.language.isoenen_US
dc.publisherAPSen_US
dc.titleDiffuse galactic gamma-ray emission with H.E.S.S.en_US
dc.typeArticleen_US
dc.contributor.researchID24420530 - Böttcher, Markus
dc.contributor.researchID13146629 - Davids, Isak Delberth
dc.contributor.researchID24790052 - Ivascenko, Alex
dc.contributor.researchID11749903 - Krüger, Petrus Paulus
dc.contributor.researchID22050574 - Pekeur, Nicolette Whilna
dc.contributor.researchID25161814 - Spanier, Felix Alexander
dc.contributor.researchID24922986 - Sushch, Iurii
dc.contributor.researchID12006653 - Venter, Christo
dc.contributor.researchID12792322 - Vorster, Michael Johannes


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record