VERITAS Observations of The Galactic Center Ridge
Andrew W. Smith (for the VERITAS Collaboration)

TL;DR
This paper presents VERITAS observations of the Galactic Center Ridge from 2010-2014, providing improved spectra, detections of sources, and evidence of extended TeV emission along the Galactic plane.
Contribution
It offers new measurements of TeV spectra for SgrA* and G0.9+0.1, and reports on extended and localized TeV emission features in the Galactic Center region.
Findings
Improved TeV spectra for SgrA* and G0.9+0.1
Detection of extended emission along the Galactic plane
Identification of VER J1746-289 as a TeV emission enhancement
Abstract
The Galactic Center Ridge has been observed extensively in the past by both GeV and TeV instruments revealing a wealth of structure, including both a diffuse component, the point sources G0.9+0.1 (a composite supernova remnant) and SgrA* (believed to be associated with the super massive black hole located at the center of our galaxy). Previous observations (> 300 GeV) with the H.E.S.S. array have also detected an extended TeV component along the Galactic plane due to either diffuse emission or a host of unresolved point sources. Here we report on the VERITAS observations of the Galactic Center Ridge from 2010-2014 in the energy range above 2 TeV. From these observations we 1.) Provide improved measurements of the differential energy spectra for SgrA* in the multi-TeV regime, 2.) Provide a detection in the >2 TeV band of the composite SNR G0.9+0.1 and an improvement of its multi-TeV…
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