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

Mark Lang

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

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

Mark Lang

Physics

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

60 Citations (Scopus)

Abstract

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.

Original language	English (Ireland)
Article number	78
Journal	Astrophysical Journal
Volume	788
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/788/1/78
Publication status	Published - 1 Jun 2014

Keywords

gamma rays: stars
supernovae: individual (CTB 87)

Authors (Note for portal: view the doc link for the full list of authors)

Authors
Aliu, E,Aune, T,Behera, B,Beilicke, M,Benbow, W,Berger, K,Bird, R,Bouvier, A,Buckley, JH,Bugaev, V,Cerruti, M,Chen, X,Ciupik, L,Connolly, MP,Cui, W,Dumm, J,Dwarkadas, VV,Errando, M,Falcone, A,Federici, S,Feng, Q,Finley, JP,Fleischhack, H,Fortin, P,Fortson, L,Furniss, A,Galante, N,Gillanders, GH,Gotthelf, EV,Griffin, S,Griffiths, ST,Grube, J,Gyuk, G,Hanna, D,Holder, J,Hughes, G,Humensky, TB,Johnson, CA,Kaaret, P,Kargaltsev, O,Kertzman, M,Khassen, Y,Kieda, D,Krennrich, F,Lang, MJ,Madhavan, AS,Maier, G,McArthur, S,McCann, A,Millis, J,Moriarty, P,Mukherjee, R,Nieto, D,de Bhroithe, AO,Ong, RA,Otte, AN,Pandel, D,Park, N,Pohl, M,Popkow, A,Prokoph, H,Quinn, J,Ragan, K,Rajotte, J,Reyes, LC,Reynolds, PT,Richards, GT,Roache, E,Roberts, M,Sembroski, GH,Shahinyan, K,Smith, AW,Staszak, D,Telezhinsky, I

Access to Document

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

Cite this

@article{d54fe451cb464a4d8e05a8bd619bd203,

title = "SPATIALLY RESOLVING THE VERY HIGH ENERGY EMISSION FROM MGRO J2019+37 WITH VERITAS",

abstract = "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.",

keywords = "gamma rays: stars, supernovae: individual (CTB 87)",

author = "Mark Lang",

year = "2014",

month = jun,

day = "1",

doi = "10.1088/0004-637X/788/1/78",

language = "English (Ireland)",

volume = "788",

journal = "Astrophysical Journal",

number = "1",

}

TY - JOUR

T1 - SPATIALLY RESOLVING THE VERY HIGH ENERGY EMISSION FROM MGRO J2019+37 WITH VERITAS

AU - Lang, Mark

PY - 2014/6/1

Y1 - 2014/6/1

N2 - 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.

AB - 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.

KW - gamma rays: stars

KW - supernovae: individual (CTB 87)

UR - https://www.scopus.com/pages/publications/84901768150

U2 - 10.1088/0004-637X/788/1/78

DO - 10.1088/0004-637X/788/1/78

M3 - Article

VL - 788

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 78

ER -

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

Abstract

Keywords

Authors (Note for portal: view the doc link for the full list of authors)

Access to Document

Other files and links

Fingerprint

Cite this