SPATIALLY RESOLVING THE VERY HIGH ENERGY EMISSION FROM MGRO J2019+37 WITH VERITAS

E. Aliu; T. Aune; B. Behera; M. Beilicke; W. Benbow; K. Berger; R. Bird; A. Bouvier; J. H. Buckley; V. Bugaev; M. Cerruti; X. Chen; L. Ciupik; M. P. Connolly; W. Cui; J. Dumm; V. V. Dwarkadas; M. Errando; A. Falcone; S. Federici; Q. Feng; J. P. Finley; H. Fleischhack; P. Fortin; L. Fortson; A. Furniss; N. Galante; G. H. Gillanders; E. V. Gotthelf; S. Griffin; S. T. Griffiths; J. Grube; G. Gyuk; D. Hanna; J. Holder; G. Hughes; T. B. Humensky; C. A. Johnson; P. Kaaret; O. Kargaltsev; M. Kertzman; Y. Khassen; D. Kieda; F. Krennrich; M. J. Lang; A. S. Madhavan; G. Maier; S. McArthur; A. McCann; J. Millis; P. Moriarty; R. Mukherjee; D. Nieto; A. O'Faolain de Bhroithe; R. A. Ong; A. N. Otte; D. Pandel; N. Park; M. Pohl; A. Popkow; H. Prokoph; J. Quinn; K. Ragan; J. Rajotte; L. C. Reyes; P. T. Reynolds; G. T. Richards; E. Roache; M. Roberts; G. H. Sembroski; K. Shahinyan; A. W. Smith; D. Staszak; I. Telezhinsky; J. V. Tucci; J. Tyler; S. Vincent; S. P. Wakely; A. Weinstein; R. Welsing; A. Wilhelm; D. A. Williams; B. Zitzer

doi:10.1088/0004-637X/788/1/78

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SPATIALLY RESOLVING THE VERY HIGH ENERGY EMISSION FROM MGRO J2019+37 WITH VERITAS

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SPATIALLY RESOLVING THE VERY HIGH ENERGY EMISSION FROM MGRO J2019+37 WITH VERITAS

E. Aliu, T. Aune, B. Behera, M. Beilicke, W. Benbow, K. Berger, R. Bird, A. Bouvier, J. H. Buckley, V. Bugaev, …

The Astrophysical journal, v 788(1), pp 1-10

10 Jun 2014

DOI: https://doi.org/10.1088/0004-637X/788/1/78

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Abstract

Astronomy & Astrophysics

Physical Sciences

Science & Technology

We present very high energy (VHE) imaging of MGRO J2019+37 obtained with the VERITAS observatory. The bright extended (similar to 2 degrees) unidentified Milagro source is located toward the rich star formation region Cygnus-X. MGRO J2019+37 is resolved into two VERITAS sources. The faint, point-like source VER J2016+371 overlaps CTB 87, a filled-center remnant (SNR) with no evidence of a supernova remnant shell at the present time. Its spectrum is well fit in the 0.65-10 TeV energy range by a power-law model with photon index 2.3 +/- 0.4. VER J2019+378 is a bright extended (similar to 1 degrees) source that likely accounts for the bulk of the Milagro emission and is notably coincident with PSR J2021+3651 and the star formation region Sh 2-104. Its spectrum in the range 1-30 TeV is well fit with a power-law model of photon index 1.75 +/- 0.3, among the hardest values measured in the VHE band, comparable to that observed near Vela-X. We explore the unusual spectrum and morphology in the radio and X-ray bands to constrain possible emission mechanisms for this source.

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Title: SPATIALLY RESOLVING THE VERY HIGH ENERGY EMISSION FROM MGRO J2019+37 WITH VERITAS
Creators: E. Aliu - Columbia University
T. Aune - University of California, Los Angeles
B. Behera - DESY, D-15738 Zeuthen, Germany
M. Beilicke - Washington University in St. Louis
W. Benbow - Harvard University
K. Berger - University of Delaware
R. Bird - University College Dublin
A. Bouvier - University of California, Santa Cruz
J. H. Buckley - Washington University in St. Louis
V. Bugaev - Washington University in St. Louis
M. Cerruti - Harvard University
X. Chen - University of Potsdam
L. Ciupik - Adler Planetarium
M. P. Connolly - National University of Ireland, Galway
W. Cui - Purdue University West Lafayette
J. Dumm - University of Minnesota
V. V. Dwarkadas - University of Chicago
M. Errando - Columbia University
A. Falcone - Pennsylvania State University
S. Federici - University of Potsdam
Q. Feng - Purdue University West Lafayette
J. P. Finley - Purdue University West Lafayette
H. Fleischhack - DESY, D-15738 Zeuthen, Germany
P. Fortin - Harvard University
L. Fortson - University of Minnesota
A. Furniss - University of California, Santa Cruz
N. Galante - Harvard University
G. H. Gillanders - National University of Ireland, Galway
E. V. Gotthelf - Columbia University
S. Griffin - McGill University
S. T. Griffiths - University of Iowa
J. Grube - Adler Planetarium
G. Gyuk - Adler Planetarium
D. Hanna - McGill University
J. Holder - University of Delaware
G. Hughes - DESY, D-15738 Zeuthen, Germany
T. B. Humensky - Columbia University
C. A. Johnson - University of California, Santa Cruz
P. Kaaret - University of Iowa
O. Kargaltsev - George Washington University
M. Kertzman - DePauw University
Y. Khassen - University College Dublin
D. Kieda - University of Utah
F. Krennrich - Iowa State University
M. J. Lang - National University of Ireland, Galway
A. S. Madhavan - Iowa State University
G. Maier - DESY, D-15738 Zeuthen, Germany
S. McArthur - University of Chicago
A. McCann - University of Chicago
J. Millis - Galway-Mayo Institute of Technology
P. Moriarty - Galway-Mayo Institute of Technology
R. Mukherjee - Columbia University
D. Nieto - Columbia University
A. O'Faolain de Bhroithe - University College Dublin
R. A. Ong - University of California, Los Angeles
A. N. Otte - Georgia Institute of Technology
D. Pandel - Grand Valley State University
N. Park - University of Chicago
M. Pohl - University of Potsdam
A. Popkow - University of California, Los Angeles
H. Prokoph - DESY, D-15738 Zeuthen, Germany
J. Quinn - University College Dublin
K. Ragan - McGill University
J. Rajotte - McGill University
L. C. Reyes - California Polytechnic State University
P. T. Reynolds - Cork Institute of Technology
G. T. Richards - Georgia Institute of Technology
E. Roache - Harvard University
M. Roberts - Eureka Sci Inc, Oakland, CA 94602 USA
G. H. Sembroski - Purdue University West Lafayette
K. Shahinyan - University of Minnesota
A. W. Smith - University of Utah
D. Staszak - McGill University
I. Telezhinsky - University of Potsdam
J. V. Tucci - Purdue University West Lafayette
J. Tyler - McGill University
S. Vincent - DESY, D-15738 Zeuthen, Germany
S. P. Wakely - University of Chicago
A. Weinstein - Iowa State University
R. Welsing - DESY, D-15738 Zeuthen, Germany
A. Wilhelm - University of Potsdam
D. A. Williams - University of California, Santa Cruz
B. Zitzer - Argonne National Laboratory
Publication Details: The Astrophysical journal, v 788(1), pp 1-10
Publisher: Iop Publishing Ltd
Number of pages: 10
Grant note: 1402740 / Direct For Mathematical & Physical Scien; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) NSERC in Canada; Natural Sciences and Engineering Research Council of Canada (NSERC) SFI 10/RFP/AST2748 / Science Foundation Ireland; European Commission ESA Member States and NASA Natural Sciences and Engineering Research Council; Natural Sciences and Engineering Research Council of Canada (NSERC) U.S. Department of Energy Office of Science; United States Department of Energy (DOE) STFC in the U. K; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) Smithsonian Institution U.S. National Science Foundation; National Science Foundation (NSF) 1307443 / Division Of Physics; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS)
Resource Type: Journal article
Language: English
Academic Unit: Physics
Web of Science ID: WOS:000337095200078
Scopus ID: 2-s2.0-84901768150
Other Identifier: 991019201504304721

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Collaboration types: Industry collaboration; Domestic collaboration; International collaboration
Web of Science research areas: Astronomy & Astrophysics

SPATIALLY RESOLVING THE VERY HIGH ENERGY EMISSION FROM MGRO J2019+37 WITH VERITAS

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