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Archer, A,Benbow, W,Bird, R,Buchovecky, M,Buckley, JH,Bugaev, V,Byrum, K,Cardenzana, JV,Cerruti, M,Chen, X,Ciupik, L,Collins-Hughes, E,Connolly, MP,Eisch, JD,Falcone, A,Feng, Q,Finley, JP,Fleischhack, H,Flinders, A,Fortson, L,Furniss, A,Gillanders, GH,Griffin, S,Grube, J,Gyuk, G,Hakansson, N,Hanna, D,Holder, J,Humensky, TB,Hutten, M,Johnson, CA,Kaaret, P,Kar, P,Kelley-Hoskins, N,Kertzman, M,Kieda, D,Krause, M,Krennrich, F,Kumar, S,Lang, MJ,McArthur, S,McCann, A,Meagher, K,Millis, J,Moriarty, P,Mukherjee, R,Nieto, D,Ong, RA,Park, N,Pelassa, V,Pohl, M,Popkow, A,Pueschel, E,Quinn, J,Ragan, K,Ratliff, G,Reynolds, PT,Richards, GT,Roache, E,Rousselle, J,Santander, M,Sembroski, GH,Shahinyan, K,Smith, AW,Staszak, D,Telezhinsky, I,Tucci, JV,Tyler, J,Vassiliev, VV,Wakely, SP,Weiner, OM,Weinstein, A
2016
April
Astrophysical Journal
TEV GAMMA-RAY OBSERVATIONS OF THE GALACTIC CENTER RIDGE BY VERITAS
Published
Altmetric: 4WOS: 12 ()
Optional Fields
Galaxy: center gamma rays: general supernovae: individual (G0.9+0.1) SGR-A-ASTERISK SAGITTARIUS B2 CLOUD CENTER BLACK-HOLE HIGH-ENERGY CENTER REGION MOLECULAR CLOUDS CHANDRA OBSERVATIONS STELLAR CLUSTERS EMISSION TELESCOPE
821
The Galactic Center ridge has been observed extensively in the past by both GeV and TeV gamma-ray instruments revealing a wealth of structure, including a diffuse component and the point sources G0.9+0.1 (a composite supernova remnant) and Sgr A* (believed to be associated with the supermassive black hole located at the center of our Galaxy). Previous very high energy (VHE) gamma-ray observations with the H.E.S.S.. experiment have also detected an extended TeV gamma-ray component along the Galactic plane in the >300 GeV gamma-ray regime. Here we report on observations of the Galactic Center ridge from 2010 to 2014 by the VERITAS telescope array in the >2 TeV energy range. From these observations we (1) provide improved measurements of the differential energy spectrum for Sgr A* in the >2 TeV gamma-ray regime, (2) provide a detection in the >2 TeV gamma-ray emission from the composite SNR G0.9+0.1 and an improved determination of its multi-TeV gamma-ray energy spectrum, and. (3) report on the detection of VER J1746-289, a localized enhancement of >2 TeV gamma-ray emission along the Galactic plane.
10.3847/0004-637X/821/2/129
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