Discovery of TeV gamma-ray emission from CTA 1 by Veritas

E. Aliu; S. Archambault; T. Arlen; T. Aune; M. Beilicke; W. Benbow; A. Bouvier; J. H. Buckley; V. Bugaev; A. Cesarini; L. Ciupik; E. Collins-Hughes; M. P. Connolly; W. Cui; R. Dickherber; C. Duke; J. Dumm; V. V. Dwarkadas; M. Errando; A. Falcone; S. Federici; Q. Feng; J. P. Finley; G. Finnegan; L. Fortson; A. Furniss; N. Galante; D. Gall; G. H. Gillanders; S. Godambe; E. V. Gotthelf; S. Griffin; J. Grube; G. Gyuk; D. Hanna; J. Holder; G. Hughes; T. B. Humensky; P. Kaaret; O. Kargaltsev; N. Karlsson; Y. Khassen; D. Kieda; H. Krawczynski; F. Krennrich; M. J. Lang; K. Lee; A. S. Madhavan; G. Maier; P. Majumdar; S. McArthur; A. McCann; P. Moriarty; R. Mukherjee; T. Nelson; A. O.Faoláin De Bhróithe; R. A. Ong; M. Orr; A. N. Otte; N. Park; J. S. Perkins; M. Pohl; H. Prokoph; J. Quinn; K. Ragan; L. C. Reyes; P. T. Reynolds; E. Roache; M. Roberts; D. B. Saxon; M. Schroedter; G. H. Sembroski; P. Slane; A. W. Smith; D. Staszak; I. Telezhinsky; G. Tešić; M. Theiling; S. Thibadeau; K. Tsurusaki; J. Tyler; A. Varlotta; V. V. Vassiliev; S. Vincent; M. Vivier; S. P. Wakely; T. C. Weekes; A. Weinstein; R. Welsing; D. A. Williams; B. Zitzer

doi:10.1088/0004-637X/764/1/38

Discovery of TeV gamma-ray emission from CTA 1 by Veritas

E. Aliu, S. Archambault, T. Arlen, T. Aune, M. Beilicke, W. Benbow, A. Bouvier, J. H. Buckley, V. Bugaev, A. Cesarini, L. Ciupik, E. Collins-Hughes, M. P. Connolly, W. Cui, R. Dickherber, C. Duke, J. Dumm, V. V. Dwarkadas, M. Errando, A. FalconeS. Federici, Q. Feng, J. P. Finley, G. Finnegan, L. Fortson, A. Furniss, N. Galante, D. Gall, G. H. Gillanders, S. Godambe, E. V. Gotthelf, S. Griffin, J. Grube, G. Gyuk, D. Hanna, J. Holder, G. Hughes, T. B. Humensky, P. Kaaret, O. Kargaltsev, N. Karlsson, Y. Khassen, D. Kieda, H. Krawczynski, F. Krennrich, M. J. Lang, K. Lee, A. S. Madhavan, G. Maier, P. Majumdar, S. McArthur, A. McCann, P. Moriarty, R. Mukherjee, T. Nelson, A. O.Faoláin De Bhróithe, R. A. Ong, M. Orr, A. N. Otte, N. Park, J. S. Perkins, M. Pohl, H. Prokoph, J. Quinn, K. Ragan, L. C. Reyes, P. T. Reynolds, E. Roache, M. Roberts, D. B. Saxon, M. Schroedter, G. H. Sembroski, P. Slane, A. W. Smith, D. Staszak, I. Telezhinsky, G. Tešić, M. Theiling, S. Thibadeau, K. Tsurusaki, J. Tyler, A. Varlotta, V. V. Vassiliev, S. Vincent, M. Vivier, S. P. Wakely, T. C. Weekes, A. Weinstein, R. Welsing, D. A. Williams, B. Zitzer

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We report the discovery of TeV gamma-ray emission coincident with the shell-type radio supernova remnant (SNR) CTA 1 using the VERITAS gamma-ray observatory. The source, VER J0006+729, was detected as a 6.5 standard deviation excess over background and shows an extended morphology, approximated by a two-dimensional Gaussian of semimajor (semiminor) axis 0.°30 (0.°24) and a centroid 5′ from the Fermi gamma-ray pulsar PSR J0007+7303 and its X-ray pulsar wind nebula (PWN). The photon spectrum is well described by a power-law dN/dE = N ₀(E/3 TeV)^-Γ, with a differential spectral index of Γ = 2.2 ± 0.2_stat ± 0.3_sys, and normalization N ₀ = (9.1 ± 1.3_stat ± 1.7_sys) × 10^-14 cm ^-2 s^-1 TeV^-1. The integral flux, F _γ = 4.0 × 10^-12 erg cm^-2 s ^-1 above 1 TeV, corresponds to 0.2% of the pulsar spin-down power at 1.4 kpc. The energetics, colocation with the SNR, and the relatively small extent of the TeV emission strongly argue for the PWN origin of the TeV photons. We consider the origin of the TeV emission in CTA 1.

Original language	English (US)
Article number	38
Journal	Astrophysical Journal
Volume	764
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/764/1/38
State	Published - Feb 10 2013

Keywords

gamma-rays: stars

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/764/1/38

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Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bouvier, A., Buckley, J. H., Bugaev, V., Cesarini, A., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Dickherber, R., Duke, C., Dumm, J., Dwarkadas, V. V., Errando, M., ... Zitzer, B. (2013). Discovery of TeV gamma-ray emission from CTA 1 by Veritas. Astrophysical Journal, 764(1), Article 38. https://doi.org/10.1088/0004-637X/764/1/38

Aliu, E, Archambault, S, Arlen, T, Aune, T, Beilicke, M, Benbow, W, Bouvier, A, Buckley, JH, Bugaev, V, Cesarini, A, Ciupik, L, Collins-Hughes, E, Connolly, MP, Cui, W, Dickherber, R, Duke, C, Dumm, J, Dwarkadas, VV, Errando, M, Falcone, A, Federici, S, Feng, Q, Finley, JP, Finnegan, G, Fortson, L, Furniss, A, Galante, N, Gall, D, Gillanders, GH, Godambe, S, Gotthelf, EV, Griffin, S, Grube, J, Gyuk, G, Hanna, D, Holder, J, Hughes, G, Humensky, TB, Kaaret, P, Kargaltsev, O, Karlsson, N, Khassen, Y, Kieda, D, Krawczynski, H, Krennrich, F, Lang, MJ, Lee, K, Madhavan, AS, Maier, G, Majumdar, P, McArthur, S, McCann, A, Moriarty, P, Mukherjee, R, Nelson, T, De Bhróithe, AOF, Ong, RA, Orr, M, Otte, AN, Park, N, Perkins, JS, Pohl, M, Prokoph, H, Quinn, J, Ragan, K, Reyes, LC, Reynolds, PT, Roache, E, Roberts, M, Saxon, DB, Schroedter, M, Sembroski, GH, Slane, P, Smith, AW, Staszak, D, Telezhinsky, I, Tešić, G, Theiling, M, Thibadeau, S, Tsurusaki, K, Tyler, J, Varlotta, A, Vassiliev, VV, Vincent, S, Vivier, M, Wakely, SP, Weekes, TC, Weinstein, A, Welsing, R, Williams, DA & Zitzer, B 2013, 'Discovery of TeV gamma-ray emission from CTA 1 by Veritas', Astrophysical Journal, vol. 764, no. 1, 38. https://doi.org/10.1088/0004-637X/764/1/38

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title = "Discovery of TeV gamma-ray emission from CTA 1 by Veritas",

abstract = "We report the discovery of TeV gamma-ray emission coincident with the shell-type radio supernova remnant (SNR) CTA 1 using the VERITAS gamma-ray observatory. The source, VER J0006+729, was detected as a 6.5 standard deviation excess over background and shows an extended morphology, approximated by a two-dimensional Gaussian of semimajor (semiminor) axis 0.°30 (0.°24) and a centroid 5′ from the Fermi gamma-ray pulsar PSR J0007+7303 and its X-ray pulsar wind nebula (PWN). The photon spectrum is well described by a power-law dN/dE = N 0(E/3 TeV)-Γ, with a differential spectral index of Γ = 2.2 ± 0.2stat ± 0.3sys, and normalization N 0 = (9.1 ± 1.3stat ± 1.7sys) × 10-14 cm -2 s-1 TeV-1. The integral flux, F γ = 4.0 × 10-12 erg cm-2 s -1 above 1 TeV, corresponds to 0.2% of the pulsar spin-down power at 1.4 kpc. The energetics, colocation with the SNR, and the relatively small extent of the TeV emission strongly argue for the PWN origin of the TeV photons. We consider the origin of the TeV emission in CTA 1.",

keywords = "gamma-rays: stars",

author = "E. Aliu and S. Archambault and T. Arlen and T. Aune and M. Beilicke and W. Benbow and A. Bouvier and Buckley, {J. H.} and V. Bugaev and A. Cesarini and L. Ciupik and E. Collins-Hughes and Connolly, {M. P.} and W. Cui and R. Dickherber and C. Duke and J. Dumm and Dwarkadas, {V. V.} and M. Errando and A. Falcone and S. Federici and Q. Feng and Finley, {J. P.} and G. Finnegan and L. Fortson and A. Furniss and N. Galante and D. Gall and Gillanders, {G. H.} and S. Godambe and Gotthelf, {E. V.} and S. Griffin and J. Grube and G. Gyuk and D. Hanna and J. Holder and G. Hughes and Humensky, {T. B.} and P. Kaaret and O. Kargaltsev and N. Karlsson and Y. Khassen and D. Kieda and H. Krawczynski and F. Krennrich and Lang, {M. J.} and K. Lee and Madhavan, {A. S.} and G. Maier and P. Majumdar and S. McArthur and A. McCann and P. Moriarty and R. Mukherjee and T. Nelson and {De Bhr{\'o}ithe}, {A. O.Faol{\'a}in} and Ong, {R. A.} and M. Orr and Otte, {A. N.} and N. Park and Perkins, {J. S.} and M. Pohl and H. Prokoph and J. Quinn and K. Ragan and Reyes, {L. C.} and Reynolds, {P. T.} and E. Roache and M. Roberts and Saxon, {D. B.} and M. Schroedter and Sembroski, {G. H.} and P. Slane and Smith, {A. W.} and D. Staszak and I. Telezhinsky and G. Te{\v s}i{\'c} and M. Theiling and S. Thibadeau and K. Tsurusaki and J. Tyler and A. Varlotta and Vassiliev, {V. V.} and S. Vincent and M. Vivier and Wakely, {S. P.} and Weekes, {T. C.} and A. Weinstein and R. Welsing and Williams, {D. A.} and B. Zitzer",

year = "2013",

month = feb,

day = "10",

doi = "10.1088/0004-637X/764/1/38",

language = "English (US)",

volume = "764",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1",

}

TY - JOUR

T1 - Discovery of TeV gamma-ray emission from CTA 1 by Veritas

AU - Aliu, E.

AU - Archambault, S.

AU - Arlen, T.

AU - Aune, T.

AU - Beilicke, M.

AU - Benbow, W.

AU - Bouvier, A.

AU - Buckley, J. H.

AU - Bugaev, V.

AU - Cesarini, A.

AU - Ciupik, L.

AU - Collins-Hughes, E.

AU - Connolly, M. P.

AU - Cui, W.

AU - Dickherber, R.

AU - Duke, C.

AU - Dumm, J.

AU - Dwarkadas, V. V.

AU - Errando, M.

AU - Falcone, A.

AU - Federici, S.

AU - Feng, Q.

AU - Finley, J. P.

AU - Finnegan, G.

AU - Fortson, L.

AU - Furniss, A.

AU - Galante, N.

AU - Gall, D.

AU - Gillanders, G. H.

AU - Godambe, S.

AU - Gotthelf, E. V.

AU - Griffin, S.

AU - Grube, J.

AU - Gyuk, G.

AU - Hanna, D.

AU - Holder, J.

AU - Hughes, G.

AU - Humensky, T. B.

AU - Kaaret, P.

AU - Kargaltsev, O.

AU - Karlsson, N.

AU - Khassen, Y.

AU - Kieda, D.

AU - Krawczynski, H.

AU - Krennrich, F.

AU - Lang, M. J.

AU - Lee, K.

AU - Madhavan, A. S.

AU - Maier, G.

AU - Majumdar, P.

AU - McArthur, S.

AU - McCann, A.

AU - Moriarty, P.

AU - Mukherjee, R.

AU - Nelson, T.

AU - De Bhróithe, A. O.Faoláin

AU - Ong, R. A.

AU - Orr, M.

AU - Otte, A. N.

AU - Park, N.

AU - Perkins, J. S.

AU - Pohl, M.

AU - Prokoph, H.

AU - Quinn, J.

AU - Ragan, K.

AU - Reyes, L. C.

AU - Reynolds, P. T.

AU - Roache, E.

AU - Roberts, M.

AU - Saxon, D. B.

AU - Schroedter, M.

AU - Sembroski, G. H.

AU - Slane, P.

AU - Smith, A. W.

AU - Staszak, D.

AU - Telezhinsky, I.

AU - Tešić, G.

AU - Theiling, M.

AU - Thibadeau, S.

AU - Tsurusaki, K.

AU - Tyler, J.

AU - Varlotta, A.

AU - Vassiliev, V. V.

AU - Vincent, S.

AU - Vivier, M.

AU - Wakely, S. P.

AU - Weekes, T. C.

AU - Weinstein, A.

AU - Welsing, R.

AU - Williams, D. A.

AU - Zitzer, B.

PY - 2013/2/10

Y1 - 2013/2/10

N2 - We report the discovery of TeV gamma-ray emission coincident with the shell-type radio supernova remnant (SNR) CTA 1 using the VERITAS gamma-ray observatory. The source, VER J0006+729, was detected as a 6.5 standard deviation excess over background and shows an extended morphology, approximated by a two-dimensional Gaussian of semimajor (semiminor) axis 0.°30 (0.°24) and a centroid 5′ from the Fermi gamma-ray pulsar PSR J0007+7303 and its X-ray pulsar wind nebula (PWN). The photon spectrum is well described by a power-law dN/dE = N 0(E/3 TeV)-Γ, with a differential spectral index of Γ = 2.2 ± 0.2stat ± 0.3sys, and normalization N 0 = (9.1 ± 1.3stat ± 1.7sys) × 10-14 cm -2 s-1 TeV-1. The integral flux, F γ = 4.0 × 10-12 erg cm-2 s -1 above 1 TeV, corresponds to 0.2% of the pulsar spin-down power at 1.4 kpc. The energetics, colocation with the SNR, and the relatively small extent of the TeV emission strongly argue for the PWN origin of the TeV photons. We consider the origin of the TeV emission in CTA 1.

AB - We report the discovery of TeV gamma-ray emission coincident with the shell-type radio supernova remnant (SNR) CTA 1 using the VERITAS gamma-ray observatory. The source, VER J0006+729, was detected as a 6.5 standard deviation excess over background and shows an extended morphology, approximated by a two-dimensional Gaussian of semimajor (semiminor) axis 0.°30 (0.°24) and a centroid 5′ from the Fermi gamma-ray pulsar PSR J0007+7303 and its X-ray pulsar wind nebula (PWN). The photon spectrum is well described by a power-law dN/dE = N 0(E/3 TeV)-Γ, with a differential spectral index of Γ = 2.2 ± 0.2stat ± 0.3sys, and normalization N 0 = (9.1 ± 1.3stat ± 1.7sys) × 10-14 cm -2 s-1 TeV-1. The integral flux, F γ = 4.0 × 10-12 erg cm-2 s -1 above 1 TeV, corresponds to 0.2% of the pulsar spin-down power at 1.4 kpc. The energetics, colocation with the SNR, and the relatively small extent of the TeV emission strongly argue for the PWN origin of the TeV photons. We consider the origin of the TeV emission in CTA 1.

KW - gamma-rays: stars

UR - http://www.scopus.com/inward/record.url?scp=84873962718&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84873962718&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/764/1/38

DO - 10.1088/0004-637X/764/1/38

M3 - Article

AN - SCOPUS:84873962718

SN - 0004-637X

VL - 764

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 38

ER -

Discovery of TeV gamma-ray emission from CTA 1 by Veritas

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