Discovery of high-energy and very high energy γ-ray emission from the blazar RBS 0413

E. Aliu; S. Archambault; T. Arlen; T. Aune; M. Beilicke; W. Benbow; M. Böttcher; A. Bouvier; S. M. Bradbury; J. H. Buckley; V. Bugaev; K. Byrum; A. Cannon; A. Cesarini; L. Ciupik; E. Collins-Hughes; M. P. Connolly; P. Coppi; W. Cui; G. Decerprit; R. Dickherber; J. Dumm; M. Errando; A. Falcone; 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; K. Hawkins; J. Holder; H. Huan; G. Hughes; T. B. Humensky; P. Kaaret; N. Karlsson; M. Kertzman; 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; R. A. Ong; M. Orr; A. N. Otte; N. Palma; N. Park; J. S. Perkins; A. Pichel; M. Pohl; H. Prokoph; J. Quinn; K. Ragan; L. C. Reyes; P. T. Reynolds; E. Roache; H. J. Rose; J. Ruppel; D. B. Saxon; M. Schroedter; G. H. Sembroski; G. D. Şentürk; A. W. Smith; D. Staszak; I. Telezhinsky; G. Tešić; M. Theiling; S. Thibadeau; K. Tsurusaki; A. Varlotta; M. Vivier; S. P. Wakely; J. E. Ward; T. C. Weekes; A. Weinstein; T. Weisgarber; D. A. Williams; B. Zitzer; P. Fortin; D. Horan

doi:10.1088/0004-637X/750/2/94

Discovery of high-energy and very high energy γ-ray emission from the blazar RBS 0413

E. Aliu
, S. Archambault
, T. Arlen
, T. Aune
, M. Beilicke
, W. Benbow
, M. Böttcher
, A. Bouvier
, S. M. Bradbury
, J. H. Buckley
, V. Bugaev
, K. Byrum
, A. Cannon
, A. Cesarini
, L. Ciupik
, E. Collins-Hughes
, M. P. Connolly
, P. Coppi
, W. Cui
, G. Decerprit

R. Dickherber, J. Dumm, M. Errando, A. Falcone, 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, K. Hawkins, J. Holder, H. Huan, G. Hughes, T. B. Humensky, P. Kaaret, N. Karlsson, M. Kertzman, 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, R. A. Ong, M. Orr, A. N. Otte, N. Palma, N. Park, J. S. Perkins, A. Pichel, M. Pohl, H. Prokoph, J. Quinn, K. Ragan, L. C. Reyes, P. T. Reynolds, E. Roache, H. J. Rose, J. Ruppel, D. B. Saxon, M. Schroedter, G. H. Sembroski, G. D. Şentürk, A. W. Smith, D. Staszak, I. Telezhinsky, G. Tešić, M. Theiling, S. Thibadeau, K. Tsurusaki, A. Varlotta, M. Vivier, S. P. Wakely, J. E. Ward, T. C. Weekes, A. Weinstein, T. Weisgarber, D. A. Williams, B. Zitzer, P. Fortin, D. Horan

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45 Citations (Scopus)

Abstract

We report on the discovery of high-energy (HE; E > 0.1GeV) and very high energy (VHE; E > 100GeV) γ-ray emission from the high-frequency-peaked BL Lac object RBS0413. VERITAS, a ground-based γ-ray observatory, detected VHE γ rays from RBS0413 with a statistical significance of 5.5 standard deviations (σ) and a γ-ray flux of (1.5 ± 0.6 _stat ± 0.7_syst) × 10^-8 photons m^-2 s^-1 (1% of the Crab Nebula flux) above 250GeV. The observed spectrum can be described by a power law with a photon index of 3.18 ± 0.68_stat ± 0.30_syst. Contemporaneous observations with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope detected HE γ rays from RBS0413 with a statistical significance of more than 9σ, a power-law photon index of 1.57 ± 0.12 _stat ^+0.11 _{- 0.12sys}, and a γ-ray flux between 300MeV and 300GeV of (1.64 ± 0.43_stat ^+0.31 _{- 0.22sys}) × 10^-5 photons m^-2 s ^-1. We present the results from Fermi-LAT and VERITAS, including a spectral energy distribution modeling of the γ-ray, quasi-simultaneous X-ray (Swift-XRT), ultraviolet (Swift-UVOT), and R-band optical (MDM) data. We find that, if conditions close to equipartition are required, both the combined synchrotron self-Compton/external-Compton and the lepto-hadronic models are preferred over a pure synchrotron self-Compton model.

Original language	English
Article number	94
Journal	Astrophysical Journal
Volume	750
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/750/2/94
Publication status	Published - 10 May 2012

Keywords

gamma rays: galaxies

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10.1088/0004-637X/750/2/94

Cite this

Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Böttcher, M., Bouvier, A., Bradbury, S. M., Buckley, J. H., Bugaev, V., Byrum, K., Cannon, A., Cesarini, A., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Coppi, P., Cui, W., ... Horan, D. (2012). Discovery of high-energy and very high energy γ-ray emission from the blazar RBS 0413. Astrophysical Journal, 750(2), Article 94. https://doi.org/10.1088/0004-637X/750/2/94

@article{bb4e0980636047a19a12c70e76493a0d,

title = "Discovery of high-energy and very high energy γ-ray emission from the blazar RBS 0413",

abstract = "We report on the discovery of high-energy (HE; E > 0.1GeV) and very high energy (VHE; E > 100GeV) γ-ray emission from the high-frequency-peaked BL Lac object RBS0413. VERITAS, a ground-based γ-ray observatory, detected VHE γ rays from RBS0413 with a statistical significance of 5.5 standard deviations (σ) and a γ-ray flux of (1.5 ± 0.6 stat ± 0.7syst) × 10-8 photons m-2 s-1 (1\% of the Crab Nebula flux) above 250GeV. The observed spectrum can be described by a power law with a photon index of 3.18 ± 0.68stat ± 0.30syst. Contemporaneous observations with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope detected HE γ rays from RBS0413 with a statistical significance of more than 9σ, a power-law photon index of 1.57 ± 0.12 stat +0.11 - 0.12sys, and a γ-ray flux between 300MeV and 300GeV of (1.64 ± 0.43stat +0.31 - 0.22sys) × 10-5 photons m-2 s -1. We present the results from Fermi-LAT and VERITAS, including a spectral energy distribution modeling of the γ-ray, quasi-simultaneous X-ray (Swift-XRT), ultraviolet (Swift-UVOT), and R-band optical (MDM) data. We find that, if conditions close to equipartition are required, both the combined synchrotron self-Compton/external-Compton and the lepto-hadronic models are preferred over a pure synchrotron self-Compton model.",

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 Bradbury, \{S. M.\} and Buckley, \{J. H.\} and V. Bugaev and K. Byrum and A. Cannon and A. Cesarini and L. Ciupik and E. Collins-Hughes and Connolly, \{M. P.\} and P. Coppi and W. Cui and G. Decerprit and R. Dickherber and J. Dumm and M. Errando and A. Falcone 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 K. Hawkins and J. Holder and H. Huan and G. Hughes and Humensky, \{T. B.\} and P. Kaaret and N. Karlsson and M. Kertzman 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 Ong, \{R. A.\} and M. Orr and Otte, \{A. N.\} and N. Palma and N. Park and Perkins, \{J. S.\} and A. Pichel and M. Pohl and H. Prokoph and J. Quinn and K. Ragan and Reyes, \{L. C.\} and Reynolds, \{P. T.\} and E. Roache and Rose, \{H. J.\} 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 I. Telezhinsky and G. Te{\v s}i{\'c} and M. Theiling and S. Thibadeau and K. Tsurusaki and A. Varlotta and M. Vivier and Wakely, \{S. P.\} and Ward, \{J. E.\} and Weekes, \{T. C.\} and A. Weinstein and T. Weisgarber and Williams, \{D. A.\} and B. Zitzer and P. Fortin and D. Horan",

year = "2012",

month = may,

day = "10",

doi = "10.1088/0004-637X/750/2/94",

language = "English",

volume = "750",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Aliu, E, Archambault, S, Arlen, T, Aune, T, Beilicke, M, Benbow, W, Böttcher, M, Bouvier, A, Bradbury, SM, Buckley, JH, Bugaev, V, Byrum, K, Cannon, A, Cesarini, A, Ciupik, L, Collins-Hughes, E, Connolly, MP, Coppi, P, Cui, W, Decerprit, G, Dickherber, R, Dumm, J, Errando, M, Falcone, A, Feng, Q, Finley, JP, Finnegan, G, Fortson, L, Furniss, A, Galante, N, Gall, D, Godambe, S, Griffin, S, Grube, J, Gyuk, G, Hanna, D, Hawkins, K, Holder, J, Huan, H, Hughes, G, Humensky, TB, Kaaret, P, Karlsson, N, Kertzman, M, 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, Ong, RA, Orr, M, Otte, AN, Palma, N, Park, N, Perkins, JS, Pichel, A, Pohl, M, Prokoph, H, Quinn, J, Ragan, K, Reyes, LC, Reynolds, PT, Roache, E, Rose, HJ, Ruppel, J, Saxon, DB, Schroedter, M, Sembroski, GH, Şentürk, GD, Smith, AW, Staszak, D, Telezhinsky, I, Tešić, G, Theiling, M, Thibadeau, S, Tsurusaki, K, Varlotta, A, Vivier, M, Wakely, SP, Ward, JE, Weekes, TC, Weinstein, A, Weisgarber, T, Williams, DA, Zitzer, B, Fortin, P & Horan, D 2012, 'Discovery of high-energy and very high energy γ-ray emission from the blazar RBS 0413', Astrophysical Journal, vol. 750, no. 2, 94. https://doi.org/10.1088/0004-637X/750/2/94

TY - JOUR

T1 - Discovery of high-energy and very high energy γ-ray emission from the blazar RBS 0413

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 - Bradbury, S. M.

AU - Buckley, J. H.

AU - Bugaev, V.

AU - Byrum, K.

AU - Cannon, A.

AU - Cesarini, A.

AU - Ciupik, L.

AU - Collins-Hughes, E.

AU - Connolly, M. P.

AU - Coppi, P.

AU - Cui, W.

AU - Decerprit, G.

AU - Dickherber, R.

AU - Dumm, J.

AU - Errando, M.

AU - Falcone, A.

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 - Hawkins, K.

AU - Holder, J.

AU - Huan, H.

AU - Hughes, G.

AU - Humensky, T. B.

AU - Kaaret, P.

AU - Karlsson, N.

AU - Kertzman, M.

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 - Ong, R. A.

AU - Orr, M.

AU - Otte, A. N.

AU - Palma, N.

AU - Park, N.

AU - Perkins, J. S.

AU - Pichel, A.

AU - Pohl, M.

AU - Prokoph, H.

AU - Quinn, J.

AU - Ragan, K.

AU - Reyes, L. C.

AU - Reynolds, P. T.

AU - Roache, E.

AU - Rose, H. J.

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 - Telezhinsky, I.

AU - Tešić, G.

AU - Theiling, M.

AU - Thibadeau, S.

AU - Tsurusaki, K.

AU - Varlotta, A.

AU - Vivier, M.

AU - Wakely, S. P.

AU - Ward, J. E.

AU - Weekes, T. C.

AU - Weinstein, A.

AU - Weisgarber, T.

AU - Williams, D. A.

AU - Zitzer, B.

AU - Fortin, P.

AU - Horan, D.

PY - 2012/5/10

Y1 - 2012/5/10

N2 - We report on the discovery of high-energy (HE; E > 0.1GeV) and very high energy (VHE; E > 100GeV) γ-ray emission from the high-frequency-peaked BL Lac object RBS0413. VERITAS, a ground-based γ-ray observatory, detected VHE γ rays from RBS0413 with a statistical significance of 5.5 standard deviations (σ) and a γ-ray flux of (1.5 ± 0.6 stat ± 0.7syst) × 10-8 photons m-2 s-1 (1% of the Crab Nebula flux) above 250GeV. The observed spectrum can be described by a power law with a photon index of 3.18 ± 0.68stat ± 0.30syst. Contemporaneous observations with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope detected HE γ rays from RBS0413 with a statistical significance of more than 9σ, a power-law photon index of 1.57 ± 0.12 stat +0.11 - 0.12sys, and a γ-ray flux between 300MeV and 300GeV of (1.64 ± 0.43stat +0.31 - 0.22sys) × 10-5 photons m-2 s -1. We present the results from Fermi-LAT and VERITAS, including a spectral energy distribution modeling of the γ-ray, quasi-simultaneous X-ray (Swift-XRT), ultraviolet (Swift-UVOT), and R-band optical (MDM) data. We find that, if conditions close to equipartition are required, both the combined synchrotron self-Compton/external-Compton and the lepto-hadronic models are preferred over a pure synchrotron self-Compton model.

AB - We report on the discovery of high-energy (HE; E > 0.1GeV) and very high energy (VHE; E > 100GeV) γ-ray emission from the high-frequency-peaked BL Lac object RBS0413. VERITAS, a ground-based γ-ray observatory, detected VHE γ rays from RBS0413 with a statistical significance of 5.5 standard deviations (σ) and a γ-ray flux of (1.5 ± 0.6 stat ± 0.7syst) × 10-8 photons m-2 s-1 (1% of the Crab Nebula flux) above 250GeV. The observed spectrum can be described by a power law with a photon index of 3.18 ± 0.68stat ± 0.30syst. Contemporaneous observations with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope detected HE γ rays from RBS0413 with a statistical significance of more than 9σ, a power-law photon index of 1.57 ± 0.12 stat +0.11 - 0.12sys, and a γ-ray flux between 300MeV and 300GeV of (1.64 ± 0.43stat +0.31 - 0.22sys) × 10-5 photons m-2 s -1. We present the results from Fermi-LAT and VERITAS, including a spectral energy distribution modeling of the γ-ray, quasi-simultaneous X-ray (Swift-XRT), ultraviolet (Swift-UVOT), and R-band optical (MDM) data. We find that, if conditions close to equipartition are required, both the combined synchrotron self-Compton/external-Compton and the lepto-hadronic models are preferred over a pure synchrotron self-Compton model.

KW - gamma rays: galaxies

UR - https://www.scopus.com/pages/publications/84860324018

U2 - 10.1088/0004-637X/750/2/94

DO - 10.1088/0004-637X/750/2/94

M3 - Article

AN - SCOPUS:84860324018

SN - 0004-637X

VL - 750

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 94

ER -

Discovery of high-energy and very high energy γ-ray emission from the blazar RBS 0413

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