TeV gamma-ray sources from a survey of the Galactic plane with Milagro

A. A. Abdo; B. Allen; D. Berley; S. Casanova; C. Chen; D. G. Coyne; B. L. Dingus; R. W. Ellsworth; L. Fleysher; R. Fleysher; M. M. Gonzalez; J. A. Goodman; E. Hays; C. M. Hoffman; B. Hopper; P. H. Hüntemeyer; B. E. Kolterman; C. P. Lansdell; J. T. Linnemann; J. E. McEnery; A. I. Mincer; P. Nemethy; D. Noyes; J. M. Ryan; P. M. Saz Parkinson; A. Shoup; G. Sinnis; A. J. Smith; G. W. Sullivan; V. Vasileiou; G. P. Walker; P. A. Williams; X. W. Xu; G. B. Yodh

doi:10.1086/520717

TeV gamma-ray sources from a survey of the Galactic plane with Milagro

A. A. Abdo, B. Allen, D. Berley, S. Casanova, C. Chen, D. G. Coyne, B. L. Dingus, R. W. Ellsworth, L. Fleysher, R. Fleysher, M. M. Gonzalez, J. A. Goodman, E. Hays, C. M. Hoffman, B. Hopper, P. H. Hüntemeyer, B. E. Kolterman, C. P. Lansdell, J. T. Linnemann, J. E. McEneryA. I. Mincer, P. Nemethy, D. Noyes, J. M. Ryan, P. M. Saz Parkinson, A. Shoup, G. Sinnis, A. J. Smith, G. W. Sullivan, V. Vasileiou, G. P. Walker, P. A. Williams, X. W. Xu, G. B. Yodh

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284 Scopus citations

Abstract

A survey of Galactic gamma-ray sources at a median energy of ∼20 TeV has been performed using the Milagro Gamma-Ray Observatory. Eight candidate sources of TeV emission are detected with pretrial significances >4.5 σ in the region of Galactic longitude l ∈ [30°, 220°] and latitude b ∈ [-10°, 10°]. Four of these sources, including the Crab Nebula and the recently published MGRO J2019+37, are observed with significances >4 σ after accounting for the trials. All four of these sources are also coincident with EGRET sources. Two of the lower significance sources are coincident with EGRET sources, and one of these sources is Geminga. The other two candidates are in the Cygnus region of the Galaxy. Several of the sources appear to be spatially extended. The fluxes of the sources at 20 TeV range from ∼25% of the Crab flux to nearly as bright as the Crab.

Original language	English (US)
Pages (from-to)	L91-L94
Journal	Astrophysical Journal
Volume	664
Issue number	2 II
DOIs	https://doi.org/10.1086/520717
State	Published - Aug 1 2007
Externally published	Yes

Keywords

Gamma rays: observations

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/520717

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Abdo, A. A., Allen, B., Berley, D., Casanova, S., Chen, C., Coyne, D. G., Dingus, B. L., Ellsworth, R. W., Fleysher, L., Fleysher, R., Gonzalez, M. M., Goodman, J. A., Hays, E., Hoffman, C. M., Hopper, B., Hüntemeyer, P. H., Kolterman, B. E., Lansdell, C. P., Linnemann, J. T., ... Yodh, G. B. (2007). TeV gamma-ray sources from a survey of the Galactic plane with Milagro. Astrophysical Journal, 664(2 II), L91-L94. https://doi.org/10.1086/520717

Abdo, AA, Allen, B, Berley, D, Casanova, S, Chen, C, Coyne, DG, Dingus, BL, Ellsworth, RW, Fleysher, L, Fleysher, R, Gonzalez, MM, Goodman, JA, Hays, E, Hoffman, CM, Hopper, B, Hüntemeyer, PH, Kolterman, BE, Lansdell, CP, Linnemann, JT, McEnery, JE, Mincer, AI, Nemethy, P, Noyes, D, Ryan, JM, Saz Parkinson, PM, Shoup, A, Sinnis, G, Smith, AJ, Sullivan, GW, Vasileiou, V, Walker, GP, Williams, PA, Xu, XW & Yodh, GB 2007, 'TeV gamma-ray sources from a survey of the Galactic plane with Milagro', Astrophysical Journal, vol. 664, no. 2 II, pp. L91-L94. https://doi.org/10.1086/520717

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title = "TeV gamma-ray sources from a survey of the Galactic plane with Milagro",

abstract = "A survey of Galactic gamma-ray sources at a median energy of ∼20 TeV has been performed using the Milagro Gamma-Ray Observatory. Eight candidate sources of TeV emission are detected with pretrial significances >4.5 σ in the region of Galactic longitude l ∈ [30°, 220°] and latitude b ∈ [-10°, 10°]. Four of these sources, including the Crab Nebula and the recently published MGRO J2019+37, are observed with significances >4 σ after accounting for the trials. All four of these sources are also coincident with EGRET sources. Two of the lower significance sources are coincident with EGRET sources, and one of these sources is Geminga. The other two candidates are in the Cygnus region of the Galaxy. Several of the sources appear to be spatially extended. The fluxes of the sources at 20 TeV range from ∼25% of the Crab flux to nearly as bright as the Crab.",

keywords = "Gamma rays: observations",

author = "Abdo, {A. A.} and B. Allen and D. Berley and S. Casanova and C. Chen and Coyne, {D. G.} and Dingus, {B. L.} and Ellsworth, {R. W.} and L. Fleysher and R. Fleysher and Gonzalez, {M. M.} and Goodman, {J. A.} and E. Hays and Hoffman, {C. M.} and B. Hopper and H{\"u}ntemeyer, {P. H.} and Kolterman, {B. E.} and Lansdell, {C. P.} and Linnemann, {J. T.} and McEnery, {J. E.} and Mincer, {A. I.} and P. Nemethy and D. Noyes and Ryan, {J. M.} and {Saz Parkinson}, {P. M.} and A. Shoup and G. Sinnis and Smith, {A. J.} and Sullivan, {G. W.} and V. Vasileiou and Walker, {G. P.} and Williams, {P. A.} and Xu, {X. W.} and Yodh, {G. B.}",

year = "2007",

month = aug,

day = "1",

doi = "10.1086/520717",

language = "English (US)",

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T1 - TeV gamma-ray sources from a survey of the Galactic plane with Milagro

AU - Abdo, A. A.

AU - Allen, B.

AU - Berley, D.

AU - Casanova, S.

AU - Chen, C.

AU - Coyne, D. G.

AU - Dingus, B. L.

AU - Ellsworth, R. W.

AU - Fleysher, L.

AU - Fleysher, R.

AU - Gonzalez, M. M.

AU - Goodman, J. A.

AU - Hays, E.

AU - Hoffman, C. M.

AU - Hopper, B.

AU - Hüntemeyer, P. H.

AU - Kolterman, B. E.

AU - Lansdell, C. P.

AU - Linnemann, J. T.

AU - McEnery, J. E.

AU - Mincer, A. I.

AU - Nemethy, P.

AU - Noyes, D.

AU - Ryan, J. M.

AU - Saz Parkinson, P. M.

AU - Shoup, A.

AU - Sinnis, G.

AU - Smith, A. J.

AU - Sullivan, G. W.

AU - Vasileiou, V.

AU - Walker, G. P.

AU - Williams, P. A.

AU - Xu, X. W.

AU - Yodh, G. B.

PY - 2007/8/1

Y1 - 2007/8/1

N2 - A survey of Galactic gamma-ray sources at a median energy of ∼20 TeV has been performed using the Milagro Gamma-Ray Observatory. Eight candidate sources of TeV emission are detected with pretrial significances >4.5 σ in the region of Galactic longitude l ∈ [30°, 220°] and latitude b ∈ [-10°, 10°]. Four of these sources, including the Crab Nebula and the recently published MGRO J2019+37, are observed with significances >4 σ after accounting for the trials. All four of these sources are also coincident with EGRET sources. Two of the lower significance sources are coincident with EGRET sources, and one of these sources is Geminga. The other two candidates are in the Cygnus region of the Galaxy. Several of the sources appear to be spatially extended. The fluxes of the sources at 20 TeV range from ∼25% of the Crab flux to nearly as bright as the Crab.

AB - A survey of Galactic gamma-ray sources at a median energy of ∼20 TeV has been performed using the Milagro Gamma-Ray Observatory. Eight candidate sources of TeV emission are detected with pretrial significances >4.5 σ in the region of Galactic longitude l ∈ [30°, 220°] and latitude b ∈ [-10°, 10°]. Four of these sources, including the Crab Nebula and the recently published MGRO J2019+37, are observed with significances >4 σ after accounting for the trials. All four of these sources are also coincident with EGRET sources. Two of the lower significance sources are coincident with EGRET sources, and one of these sources is Geminga. The other two candidates are in the Cygnus region of the Galaxy. Several of the sources appear to be spatially extended. The fluxes of the sources at 20 TeV range from ∼25% of the Crab flux to nearly as bright as the Crab.

KW - Gamma rays: observations

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U2 - 10.1086/520717

DO - 10.1086/520717

M3 - Article

AN - SCOPUS:34547976240

SN - 0004-637X

VL - 664

SP - L91-L94

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 II

ER -

TeV gamma-ray sources from a survey of the Galactic plane with Milagro

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Keywords

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