TEV GAMMA-RAY OBSERVATIONS OF THE GALACTIC CENTER RIDGE BY VERITAS

A Archer; W Benbow; R Bird; M Buchovecky; J. H Buckley; V Bugaev; K Byrum; J. V Cardenzana; M Cerruti; X Chen; L Ciupik; E Collins-Hughes; M. P Connolly; J. D Eisch; A Falcone; Q Feng; J. P Finley; H Fleischhack; A Flinders; L Fortson; A Furniss; G. H Gillanders; S Griffin; J Grube; G Gyuk; N Håkansson; D Hanna; J Holder; T. B Humensky; M Hütten; C. A Johnson; P Kaaret; P Kar; N Kelley-Hoskins; M Kertzman; D Kieda; M Krause; F Krennrich; S Kumar; M. J Lang; S McArthur; A McCann; K Meagher; J Millis; P Moriarty; R Mukherjee; D Nieto; R. A Ong; N Park; V Pelassa; M Pohl; A Popkow; E Pueschel; J Quinn; K Ragan; G Ratliff; P. T Reynolds; G. T Richards; E Roache; J Rousselle; M Santander; G. H Sembroski; K Shahinyan; A. W Smith; D Staszak; I Telezhinsky; J. V Tucci; J Tyler; V. V Vassiliev; S. P Wakely; O. M Weiner; A Weinstein; A Wilhelm; D. A Williams; B Zitzer; F Yusef-Zadeh

doi:10.3847/0004-637X/821/2/129

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TEV GAMMA-RAY OBSERVATIONS OF THE GALACTIC CENTER RIDGE BY VERITAS

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TEV GAMMA-RAY OBSERVATIONS OF THE GALACTIC CENTER RIDGE BY VERITAS

A Archer, W Benbow, R Bird, M Buchovecky, J. H Buckley, V Bugaev, K Byrum, J. V Cardenzana, M Cerruti, X Chen, …

The Astrophysical journal, Vol.821(2), pp.129-129

04/22/2016

DOI: 10.3847/0004-637X/821/2/129

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Abstract

ABSTRACT 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.

Galaxy: center

gamma rays: general

supernovae: individual (G0.9+0.1)

Details

Title: Subtitle: TEV GAMMA-RAY OBSERVATIONS OF THE GALACTIC CENTER RIDGE BY VERITAS
Creators: A Archer - Washington University in St. Louis
W Benbow - Harvard University
R Bird - University College Dublin
M Buchovecky - University of California, Berkeley
J. H Buckley - Washington University in St. Louis
V Bugaev - Washington University in St. Louis
K Byrum - Argonne National Laboratory
J. V Cardenzana - Iowa State University
M Cerruti - Harvard University
X Chen - University of Potsdam
L Ciupik - Adler Planetarium
E Collins-Hughes - University College Dublin
M. P Connolly - Ollscoil na Gaillimhe – University of Galway
J. D Eisch - Iowa State University
A Falcone - Pennsylvania State University
Q Feng - Purdue University West Lafayette
J. P Finley - Purdue University West Lafayette
H Fleischhack - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
A Flinders - University of Utah
L Fortson - University of Minnesota
A Furniss - California State University, East Bay
G. H Gillanders - Ollscoil na Gaillimhe – University of Galway
S Griffin - McGill University
J Grube - Adler Planetarium
G Gyuk - Adler Planetarium
N Håkansson - University of Potsdam
D Hanna - McGill University
J Holder - University of Delaware
T. B Humensky - Columbia University
M Hütten - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
C. A Johnson - University of California, Santa Cruz
P Kaaret - University of Iowa
P Kar - University of Utah
N Kelley-Hoskins - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
M Kertzman - DePauw University
D Kieda - University of Utah
M Krause - DESY, Platanenallee 6, D-15738 Zeuthen, Germany
F Krennrich - Iowa State University
S Kumar - University of Delaware
M. J Lang - Ollscoil na Gaillimhe – University of Galway
S McArthur - Purdue University West Lafayette
A McCann - McGill University
K Meagher - Georgia Institute of Technology
J Millis - Anderson University - Indiana
P Moriarty - Ollscoil na Gaillimhe – University of Galway
R Mukherjee - Columbia University
D Nieto - Columbia University
R. A Ong - University of California, Berkeley
N Park - University of Chicago
V Pelassa - Harvard University
M Pohl - University of Potsdam
A Popkow - University of California, Berkeley
E Pueschel - University College Dublin
J Quinn - University College Dublin
K Ragan - McGill University
G Ratliff - Adler Planetarium
P. T Reynolds - Cork Institute of Technology
G. T Richards - Georgia Institute of Technology
E Roache - Harvard University
J Rousselle - University of California, Berkeley
M Santander - Columbia University
G. H Sembroski - Purdue University West Lafayette
K Shahinyan - University of Minnesota
A. W Smith - University of Maryland, College Park
D Staszak - McGill University
I Telezhinsky - University of Potsdam
J. V Tucci - Purdue University West Lafayette
J Tyler - McGill University
V. V Vassiliev - University of California, Berkeley
S. P Wakely - University of Chicago
O. M Weiner - Columbia University
A Weinstein - Iowa State University
A Wilhelm - University of Potsdam
D. A Williams - University of California, Santa Cruz
B Zitzer - Argonne National Laboratory
F Yusef-Zadeh - Northwestern University CIERA, Deprtment of Physics and Astronomy, Evanston, IL 60208 USA
Resource Type: Journal article
Publication Details: The Astrophysical journal, Vol.821(2), pp.129-129
DOI: 10.3847/0004-637X/821/2/129
ISSN: 0004-637X
eISSN: 1538-4357
Publisher: Institute of Physics (IOP)
Number of pages: 8
Language: English
Date published: 04/22/2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984199697502771

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