Multiwavelength observations of the AGN 1ES 0414+009 with veritas, FERMI-LAT, SWIFT-XRT, and MDM

E. Aliu; S. Archambault; T. Arlen; T. Aune; M. Beilicke; W. Benbow; M. Böttcher; A. Bouvier; V. Bugaev; A. Cannon; A. Cesarini; L. Ciupik; E. Collins-Hughes; M. P. Connolly; W. Cui; R. Dickherber; J. Dumm; M. Errando; A. Falcone; S. Federici; Q. Feng; J. P. Finley; G. Finnegan; L. Fortson; A. Furniss; N. Galante; D. Gall; S. Godambe; S. Griffin; J. Grube; G. Gyuk; D. Hanna; J. Holder; H. Huan; G. Hughes; C. M. Hui; A. Imran; O. Jameil; P. Kaaret; N. Karlsson; M. Kertzman; J. Kerr; Y. Khassen; D. Kieda; H. Krawczynski; F. Krennrich; M. J. Lang; K. Lee; A. S. Madhavan; 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; A. Pichel; M. Pohl; J. Quinn; K. Ragan; P. T. Reynolds; E. Roache; J. Ruppel; D. B. Saxon; M. Schroedter; G. H. Sembroski; G. D. Şentürk; A. W. Smith; D. Staszak; M. Stroh; I. Telezhinsky; G. Tešić; M. Theiling; S. Thibadeau; K. Tsurusaki; A. Varlotta; V. V. Vassiliev; M. Vivier; S. P. Wakely; J. E. Ward; A. Weinstein; R. Welsing; D. A. Williams; B. Zitzer

doi:10.1088/0004-637X/755/2/118

Multiwavelength observations of the AGN 1ES 0414+009 with veritas, FERMI-LAT, SWIFT-XRT, and MDM

E. Aliu, S. Archambault, T. Arlen, T. Aune, M. Beilicke, W. Benbow, M. Böttcher, A. Bouvier, V. Bugaev, A. Cannon, A. Cesarini, L. Ciupik, E. Collins-Hughes, M. P. Connolly, W. Cui, R. Dickherber, J. Dumm, M. Errando, A. Falcone, S. FedericiQ. Feng, J. P. Finley, G. Finnegan, L. Fortson, A. Furniss, N. Galante, D. Gall, S. Godambe, S. Griffin, J. Grube, G. Gyuk, D. Hanna, J. Holder, H. Huan, G. Hughes, C. M. Hui, A. Imran, O. Jameil, P. Kaaret, N. Karlsson, M. Kertzman, J. Kerr, Y. Khassen, D. Kieda, H. Krawczynski, F. Krennrich, M. J. Lang, K. Lee, A. S. Madhavan, 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, A. Pichel, M. Pohl, J. Quinn, K. Ragan, P. T. Reynolds, E. Roache, J. Ruppel, D. B. Saxon, M. Schroedter, G. H. Sembroski, G. D. Şentürk, A. W. Smith, D. Staszak, M. Stroh, I. Telezhinsky, G. Tešić, M. Theiling, S. Thibadeau, K. Tsurusaki, A. Varlotta, V. V. Vassiliev, M. Vivier, S. P. Wakely, J. E. Ward, A. Weinstein, R. Welsing, D. A. Williams, B. Zitzer

Physics and Astronomy (Twin Cities)

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Abstract

We present observations of the BL Lac object 1ES0414+009 in the >200 GeV gamma-ray band by the VERITAS array of Cherenkov telescopes. 1ES0414+009 was observed by VERITAS between 2008 January and 2011 February, resulting in 56.2 hr of good quality pointed observations. These observations resulted in a detection of 822 events from the source corresponding to a statistical significance of 6.4 standard deviations (6.4σ) above the background. The source flux, showing no evidence for variability, is measured as (5.2 ± 1.1_stat ± 2.6_sys) × 10^-12 photons cm^-2 s^-1 above 200 GeV, equivalent to approximately 2% of the Crab Nebula flux above this energy. The differential photon spectrum from 230 GeV to 850 GeV is well fit by a power law with a photon index of Γ= 3.4 ± 0.5_stat ± 0.3_sys and a flux normalization of (1.6 ± 0.3_stat ± 0.8_sys) × 10^-11 photons cm^-2 s^-1 at 300 GeV. We also present multiwavelength results taken in the optical (MDM), x-ray (Swift-XRT), and GeV (Fermi-LAT) bands and use these results to construct a broadband spectral energy distribution (SED). Modeling of this SED indicates that homogenous one-zone leptonic scenarios are not adequate to describe emission from the system, with a lepto-hadronic model providing a better fit to the data.

Original language	English (US)
Article number	118
Journal	Astrophysical Journal
Volume	755
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/755/2/118
State	Published - Aug 20 2012

Keywords

gamma rays: galaxies

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Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Böttcher, M., Bouvier, A., Bugaev, V., Cannon, A., Cesarini, A., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Dickherber, R., Dumm, J., Errando, M., Falcone, A., ... Zitzer, B. (2012). Multiwavelength observations of the AGN 1ES 0414+009 with veritas, FERMI-LAT, SWIFT-XRT, and MDM. Astrophysical Journal, 755(2), Article 118. https://doi.org/10.1088/0004-637X/755/2/118

Aliu, E, Archambault, S, Arlen, T, Aune, T, Beilicke, M, Benbow, W, Böttcher, M, Bouvier, A, Bugaev, V, Cannon, A, Cesarini, A, Ciupik, L, Collins-Hughes, E, Connolly, MP, Cui, W, Dickherber, R, Dumm, J, Errando, M, Falcone, A, Federici, S, Feng, Q, Finley, JP, Finnegan, G, Fortson, L, Furniss, A, Galante, N, Gall, D, Godambe, S, Griffin, S, Grube, J, Gyuk, G, Hanna, D, Holder, J, Huan, H, Hughes, G, Hui, CM, Imran, A, Jameil, O, Kaaret, P, Karlsson, N, Kertzman, M, Kerr, J, Khassen, Y, Kieda, D, Krawczynski, H, Krennrich, F, Lang, MJ, Lee, K, Madhavan, AS, Majumdar, P, McArthur, S, McCann, A, Moriarty, P, Mukherjee, R, Nelson, T, O'Faoláin De Bhróithe, A, Ong, RA, Orr, M, Otte, AN, Park, N, Perkins, JS, Pichel, A, Pohl, M, Quinn, J, Ragan, K, Reynolds, PT, Roache, E, Ruppel, J, Saxon, DB, Schroedter, M, Sembroski, GH, Şentürk, GD, Smith, AW, Staszak, D, Stroh, M, Telezhinsky, I, Tešić, G, Theiling, M, Thibadeau, S, Tsurusaki, K, Varlotta, A, Vassiliev, VV, Vivier, M, Wakely, SP, Ward, JE, Weinstein, A, Welsing, R, Williams, DA & Zitzer, B 2012, 'Multiwavelength observations of the AGN 1ES 0414+009 with veritas, FERMI-LAT, SWIFT-XRT, and MDM', Astrophysical Journal, vol. 755, no. 2, 118. https://doi.org/10.1088/0004-637X/755/2/118

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title = "Multiwavelength observations of the AGN 1ES 0414+009 with veritas, FERMI-LAT, SWIFT-XRT, and MDM",

abstract = "We present observations of the BL Lac object 1ES0414+009 in the >200 GeV gamma-ray band by the VERITAS array of Cherenkov telescopes. 1ES0414+009 was observed by VERITAS between 2008 January and 2011 February, resulting in 56.2 hr of good quality pointed observations. These observations resulted in a detection of 822 events from the source corresponding to a statistical significance of 6.4 standard deviations (6.4σ) above the background. The source flux, showing no evidence for variability, is measured as (5.2 ± 1.1stat ± 2.6sys) × 10-12 photons cm-2 s-1 above 200 GeV, equivalent to approximately 2% of the Crab Nebula flux above this energy. The differential photon spectrum from 230 GeV to 850 GeV is well fit by a power law with a photon index of Γ= 3.4 ± 0.5stat ± 0.3sys and a flux normalization of (1.6 ± 0.3stat ± 0.8sys) × 10-11 photons cm-2 s-1 at 300 GeV. We also present multiwavelength results taken in the optical (MDM), x-ray (Swift-XRT), and GeV (Fermi-LAT) bands and use these results to construct a broadband spectral energy distribution (SED). Modeling of this SED indicates that homogenous one-zone leptonic scenarios are not adequate to describe emission from the system, with a lepto-hadronic model providing a better fit to the data.",

keywords = "gamma rays: galaxies",

author = "E. Aliu and S. Archambault and T. Arlen and T. Aune and M. Beilicke and W. Benbow and M. B{\"o}ttcher and A. Bouvier and V. Bugaev and A. Cannon and A. Cesarini and L. Ciupik and E. Collins-Hughes and Connolly, {M. P.} and W. Cui and R. Dickherber and J. Dumm 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 S. Godambe and S. Griffin and J. Grube and G. Gyuk and D. Hanna and J. Holder and H. Huan and G. Hughes and Hui, {C. M.} and A. Imran and O. Jameil and P. Kaaret and N. Karlsson and M. Kertzman and J. Kerr and Y. Khassen and D. Kieda and H. Krawczynski and F. Krennrich and Lang, {M. J.} and K. Lee and Madhavan, {A. S.} and P. Majumdar and S. McArthur and A. McCann and P. Moriarty and R. Mukherjee and T. Nelson and {O'Faol{\'a}in De Bhr{\'o}ithe}, A. and Ong, {R. A.} and M. Orr and Otte, {A. N.} and N. Park and Perkins, {J. S.} and A. Pichel and M. Pohl and J. Quinn and K. Ragan and Reynolds, {P. T.} and E. Roache and J. Ruppel and Saxon, {D. B.} and M. Schroedter and Sembroski, {G. H.} and {\c S}ent{\"u}rk, {G. D.} and Smith, {A. W.} and D. Staszak and M. Stroh and I. Telezhinsky and G. Te{\v s}i{\'c} and M. Theiling and S. Thibadeau and K. Tsurusaki and A. Varlotta and Vassiliev, {V. V.} and M. Vivier and Wakely, {S. P.} and Ward, {J. E.} and A. Weinstein and R. Welsing and Williams, {D. A.} and B. Zitzer",

year = "2012",

month = aug,

day = "20",

doi = "10.1088/0004-637X/755/2/118",

language = "English (US)",

volume = "755",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "2",

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TY - JOUR

T1 - Multiwavelength observations of the AGN 1ES 0414+009 with veritas, FERMI-LAT, SWIFT-XRT, and MDM

AU - Aliu, E.

AU - Archambault, S.

AU - Arlen, T.

AU - Aune, T.

AU - Beilicke, M.

AU - Benbow, W.

AU - Böttcher, M.

AU - Bouvier, A.

AU - Bugaev, V.

AU - Cannon, A.

AU - Cesarini, A.

AU - Ciupik, L.

AU - Collins-Hughes, E.

AU - Connolly, M. P.

AU - Cui, W.

AU - Dickherber, R.

AU - Dumm, J.

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 - Godambe, S.

AU - Griffin, S.

AU - Grube, J.

AU - Gyuk, G.

AU - Hanna, D.

AU - Holder, J.

AU - Huan, H.

AU - Hughes, G.

AU - Hui, C. M.

AU - Imran, A.

AU - Jameil, O.

AU - Kaaret, P.

AU - Karlsson, N.

AU - Kertzman, M.

AU - Kerr, J.

AU - Khassen, Y.

AU - Kieda, D.

AU - Krawczynski, H.

AU - Krennrich, F.

AU - Lang, M. J.

AU - Lee, K.

AU - Madhavan, A. S.

AU - Majumdar, P.

AU - McArthur, S.

AU - McCann, A.

AU - Moriarty, P.

AU - Mukherjee, R.

AU - Nelson, T.

AU - O'Faoláin De Bhróithe, A.

AU - Ong, R. A.

AU - Orr, M.

AU - Otte, A. N.

AU - Park, N.

AU - Perkins, J. S.

AU - Pichel, A.

AU - Pohl, M.

AU - Quinn, J.

AU - Ragan, K.

AU - Reynolds, P. T.

AU - Roache, E.

AU - Ruppel, J.

AU - Saxon, D. B.

AU - Schroedter, M.

AU - Sembroski, G. H.

AU - Şentürk, G. D.

AU - Smith, A. W.

AU - Staszak, D.

AU - Stroh, M.

AU - Telezhinsky, I.

AU - Tešić, G.

AU - Theiling, M.

AU - Thibadeau, S.

AU - Tsurusaki, K.

AU - Varlotta, A.

AU - Vassiliev, V. V.

AU - Vivier, M.

AU - Wakely, S. P.

AU - Ward, J. E.

AU - Weinstein, A.

AU - Welsing, R.

AU - Williams, D. A.

AU - Zitzer, B.

PY - 2012/8/20

Y1 - 2012/8/20

N2 - We present observations of the BL Lac object 1ES0414+009 in the >200 GeV gamma-ray band by the VERITAS array of Cherenkov telescopes. 1ES0414+009 was observed by VERITAS between 2008 January and 2011 February, resulting in 56.2 hr of good quality pointed observations. These observations resulted in a detection of 822 events from the source corresponding to a statistical significance of 6.4 standard deviations (6.4σ) above the background. The source flux, showing no evidence for variability, is measured as (5.2 ± 1.1stat ± 2.6sys) × 10-12 photons cm-2 s-1 above 200 GeV, equivalent to approximately 2% of the Crab Nebula flux above this energy. The differential photon spectrum from 230 GeV to 850 GeV is well fit by a power law with a photon index of Γ= 3.4 ± 0.5stat ± 0.3sys and a flux normalization of (1.6 ± 0.3stat ± 0.8sys) × 10-11 photons cm-2 s-1 at 300 GeV. We also present multiwavelength results taken in the optical (MDM), x-ray (Swift-XRT), and GeV (Fermi-LAT) bands and use these results to construct a broadband spectral energy distribution (SED). Modeling of this SED indicates that homogenous one-zone leptonic scenarios are not adequate to describe emission from the system, with a lepto-hadronic model providing a better fit to the data.

AB - We present observations of the BL Lac object 1ES0414+009 in the >200 GeV gamma-ray band by the VERITAS array of Cherenkov telescopes. 1ES0414+009 was observed by VERITAS between 2008 January and 2011 February, resulting in 56.2 hr of good quality pointed observations. These observations resulted in a detection of 822 events from the source corresponding to a statistical significance of 6.4 standard deviations (6.4σ) above the background. The source flux, showing no evidence for variability, is measured as (5.2 ± 1.1stat ± 2.6sys) × 10-12 photons cm-2 s-1 above 200 GeV, equivalent to approximately 2% of the Crab Nebula flux above this energy. The differential photon spectrum from 230 GeV to 850 GeV is well fit by a power law with a photon index of Γ= 3.4 ± 0.5stat ± 0.3sys and a flux normalization of (1.6 ± 0.3stat ± 0.8sys) × 10-11 photons cm-2 s-1 at 300 GeV. We also present multiwavelength results taken in the optical (MDM), x-ray (Swift-XRT), and GeV (Fermi-LAT) bands and use these results to construct a broadband spectral energy distribution (SED). Modeling of this SED indicates that homogenous one-zone leptonic scenarios are not adequate to describe emission from the system, with a lepto-hadronic model providing a better fit to the data.

KW - gamma rays: galaxies

UR - http://www.scopus.com/inward/record.url?scp=84864674259&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864674259&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/755/2/118

DO - 10.1088/0004-637X/755/2/118

M3 - Article

AN - SCOPUS:84864674259

SN - 0004-637X

VL - 755

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 118

ER -

Multiwavelength observations of the AGN 1ES 0414+009 with veritas, FERMI-LAT, SWIFT-XRT, and MDM

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