Measurement of the Extragalactic Background Light Spectral Energy Distribution with VERITAS

A. U. Abeysekara, A. Archer, W. Benbow, R. Bird, A. Brill, R. Brose, M. Buchovecky, D. Calderon-Madera, J. L. Christiansen, W. Cui, M. K. Daniel, A. Falcone, Q. Feng, M. Fernandez-Alonso, J. P. Finley, L. Fortson, A. Furniss, A. Gent, C. Giuri, O. GuetaD. Hanna, T. Hassan, O. Hervet, J. Holder, G. Hughes, T. B. Humensky, C. A. Johnson, P. Kaaret, M. Kertzman, D. Kieda, M. Krause, F. Krennrich, S. Kumar, M. J. Lang, G. Maier, P. Moriarty, R. Mukherjee, M. Nievas-Rosillo, S. O'brien, R. A. Ong, K. Pfrang, M. Pohl, R. R. Prado, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, D. Ribeiro, G. T. Richards, E. Roache, A. C. Rovero, I. Sadeh, M. Santander, G. H. Sembroski, K. Shahinyan, I. Sushch, T. Svraka, A. Weinstein, R. M. Wells, P. Wilcox, A. Wilhelm, D. A. Williams, T. J. Williamson, B. Zitzer

Research output: Contribution to journalArticle

Abstract

The extragalactic background light (EBL), a diffuse photon field in the optical and infrared range, is a record of radiative processes over the universe's history. Spectral measurements of blazars at very high energies (>100 GeV) enable the reconstruction of the spectral energy distribution (SED) of the EBL, as the blazar spectra are modified by redshift- A nd energy-dependent interactions of the gamma-ray photons with the EBL. The spectra of 14 VERITAS-detected blazars are included in a new measurement of the EBL SED that is independent of EBL SED models. The resulting SED covers an EBL wavelength range of 0.56-56 μm, and is in good agreement with lower limits obtained by assuming that the EBL is entirely due to radiation from cataloged galaxies.

Original languageEnglish (US)
Article number150
JournalAstrophysical Journal
Volume885
Issue number2
DOIs
StatePublished - Nov 10 2019

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spectral energy distribution
energy
blazars
photons
distribution
universe
histories
gamma rays
galaxies
wavelength
radiation
history
wavelengths
interactions

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Abeysekara, A. U., Archer, A., Benbow, W., Bird, R., Brill, A., Brose, R., ... Zitzer, B. (2019). Measurement of the Extragalactic Background Light Spectral Energy Distribution with VERITAS. Astrophysical Journal, 885(2), [150]. https://doi.org/10.3847/1538-4357/ab4817
Abeysekara, A. U. ; Archer, A. ; Benbow, W. ; Bird, R. ; Brill, A. ; Brose, R. ; Buchovecky, M. ; Calderon-Madera, D. ; Christiansen, J. L. ; Cui, W. ; Daniel, M. K. ; Falcone, A. ; Feng, Q. ; Fernandez-Alonso, M. ; Finley, J. P. ; Fortson, L. ; Furniss, A. ; Gent, A. ; Giuri, C. ; Gueta, O. ; Hanna, D. ; Hassan, T. ; Hervet, O. ; Holder, J. ; Hughes, G. ; Humensky, T. B. ; Johnson, C. A. ; Kaaret, P. ; Kertzman, M. ; Kieda, D. ; Krause, M. ; Krennrich, F. ; Kumar, S. ; Lang, M. J. ; Maier, G. ; Moriarty, P. ; Mukherjee, R. ; Nievas-Rosillo, M. ; O'brien, S. ; Ong, R. A. ; Pfrang, K. ; Pohl, M. ; Prado, R. R. ; Pueschel, E. ; Quinn, J. ; Ragan, K. ; Reynolds, P. T. ; Ribeiro, D. ; Richards, G. T. ; Roache, E. ; Rovero, A. C. ; Sadeh, I. ; Santander, M. ; Sembroski, G. H. ; Shahinyan, K. ; Sushch, I. ; Svraka, T. ; Weinstein, A. ; Wells, R. M. ; Wilcox, P. ; Wilhelm, A. ; Williams, D. A. ; Williamson, T. J. ; Zitzer, B. / Measurement of the Extragalactic Background Light Spectral Energy Distribution with VERITAS. In: Astrophysical Journal. 2019 ; Vol. 885, No. 2.
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abstract = "The extragalactic background light (EBL), a diffuse photon field in the optical and infrared range, is a record of radiative processes over the universe's history. Spectral measurements of blazars at very high energies (>100 GeV) enable the reconstruction of the spectral energy distribution (SED) of the EBL, as the blazar spectra are modified by redshift- A nd energy-dependent interactions of the gamma-ray photons with the EBL. The spectra of 14 VERITAS-detected blazars are included in a new measurement of the EBL SED that is independent of EBL SED models. The resulting SED covers an EBL wavelength range of 0.56-56 μm, and is in good agreement with lower limits obtained by assuming that the EBL is entirely due to radiation from cataloged galaxies.",
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Abeysekara, AU, Archer, A, Benbow, W, Bird, R, Brill, A, Brose, R, Buchovecky, M, Calderon-Madera, D, Christiansen, JL, Cui, W, Daniel, MK, Falcone, A, Feng, Q, Fernandez-Alonso, M, Finley, JP, Fortson, L, Furniss, A, Gent, A, Giuri, C, Gueta, O, Hanna, D, Hassan, T, Hervet, O, Holder, J, Hughes, G, Humensky, TB, Johnson, CA, Kaaret, P, Kertzman, M, Kieda, D, Krause, M, Krennrich, F, Kumar, S, Lang, MJ, Maier, G, Moriarty, P, Mukherjee, R, Nievas-Rosillo, M, O'brien, S, Ong, RA, Pfrang, K, Pohl, M, Prado, RR, Pueschel, E, Quinn, J, Ragan, K, Reynolds, PT, Ribeiro, D, Richards, GT, Roache, E, Rovero, AC, Sadeh, I, Santander, M, Sembroski, GH, Shahinyan, K, Sushch, I, Svraka, T, Weinstein, A, Wells, RM, Wilcox, P, Wilhelm, A, Williams, DA, Williamson, TJ & Zitzer, B 2019, 'Measurement of the Extragalactic Background Light Spectral Energy Distribution with VERITAS', Astrophysical Journal, vol. 885, no. 2, 150. https://doi.org/10.3847/1538-4357/ab4817

Measurement of the Extragalactic Background Light Spectral Energy Distribution with VERITAS. / Abeysekara, A. U.; Archer, A.; Benbow, W.; Bird, R.; Brill, A.; Brose, R.; Buchovecky, M.; Calderon-Madera, D.; Christiansen, J. L.; Cui, W.; Daniel, M. K.; Falcone, A.; Feng, Q.; Fernandez-Alonso, M.; Finley, J. P.; Fortson, L.; Furniss, A.; Gent, A.; Giuri, C.; Gueta, O.; Hanna, D.; Hassan, T.; Hervet, O.; Holder, J.; Hughes, G.; Humensky, T. B.; Johnson, C. A.; Kaaret, P.; Kertzman, M.; Kieda, D.; Krause, M.; Krennrich, F.; Kumar, S.; Lang, M. J.; Maier, G.; Moriarty, P.; Mukherjee, R.; Nievas-Rosillo, M.; O'brien, S.; Ong, R. A.; Pfrang, K.; Pohl, M.; Prado, R. R.; Pueschel, E.; Quinn, J.; Ragan, K.; Reynolds, P. T.; Ribeiro, D.; Richards, G. T.; Roache, E.; Rovero, A. C.; Sadeh, I.; Santander, M.; Sembroski, G. H.; Shahinyan, K.; Sushch, I.; Svraka, T.; Weinstein, A.; Wells, R. M.; Wilcox, P.; Wilhelm, A.; Williams, D. A.; Williamson, T. J.; Zitzer, B.

In: Astrophysical Journal, Vol. 885, No. 2, 150, 10.11.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of the Extragalactic Background Light Spectral Energy Distribution with VERITAS

AU - Abeysekara, A. U.

AU - Archer, A.

AU - Benbow, W.

AU - Bird, R.

AU - Brill, A.

AU - Brose, R.

AU - Buchovecky, M.

AU - Calderon-Madera, D.

AU - Christiansen, J. L.

AU - Cui, W.

AU - Daniel, M. K.

AU - Falcone, A.

AU - Feng, Q.

AU - Fernandez-Alonso, M.

AU - Finley, J. P.

AU - Fortson, L.

AU - Furniss, A.

AU - Gent, A.

AU - Giuri, C.

AU - Gueta, O.

AU - Hanna, D.

AU - Hassan, T.

AU - Hervet, O.

AU - Holder, J.

AU - Hughes, G.

AU - Humensky, T. B.

AU - Johnson, C. A.

AU - Kaaret, P.

AU - Kertzman, M.

AU - Kieda, D.

AU - Krause, M.

AU - Krennrich, F.

AU - Kumar, S.

AU - Lang, M. J.

AU - Maier, G.

AU - Moriarty, P.

AU - Mukherjee, R.

AU - Nievas-Rosillo, M.

AU - O'brien, S.

AU - Ong, R. A.

AU - Pfrang, K.

AU - Pohl, M.

AU - Prado, R. R.

AU - Pueschel, E.

AU - Quinn, J.

AU - Ragan, K.

AU - Reynolds, P. T.

AU - Ribeiro, D.

AU - Richards, G. T.

AU - Roache, E.

AU - Rovero, A. C.

AU - Sadeh, I.

AU - Santander, M.

AU - Sembroski, G. H.

AU - Shahinyan, K.

AU - Sushch, I.

AU - Svraka, T.

AU - Weinstein, A.

AU - Wells, R. M.

AU - Wilcox, P.

AU - Wilhelm, A.

AU - Williams, D. A.

AU - Williamson, T. J.

AU - Zitzer, B.

PY - 2019/11/10

Y1 - 2019/11/10

N2 - The extragalactic background light (EBL), a diffuse photon field in the optical and infrared range, is a record of radiative processes over the universe's history. Spectral measurements of blazars at very high energies (>100 GeV) enable the reconstruction of the spectral energy distribution (SED) of the EBL, as the blazar spectra are modified by redshift- A nd energy-dependent interactions of the gamma-ray photons with the EBL. The spectra of 14 VERITAS-detected blazars are included in a new measurement of the EBL SED that is independent of EBL SED models. The resulting SED covers an EBL wavelength range of 0.56-56 μm, and is in good agreement with lower limits obtained by assuming that the EBL is entirely due to radiation from cataloged galaxies.

AB - The extragalactic background light (EBL), a diffuse photon field in the optical and infrared range, is a record of radiative processes over the universe's history. Spectral measurements of blazars at very high energies (>100 GeV) enable the reconstruction of the spectral energy distribution (SED) of the EBL, as the blazar spectra are modified by redshift- A nd energy-dependent interactions of the gamma-ray photons with the EBL. The spectra of 14 VERITAS-detected blazars are included in a new measurement of the EBL SED that is independent of EBL SED models. The resulting SED covers an EBL wavelength range of 0.56-56 μm, and is in good agreement with lower limits obtained by assuming that the EBL is entirely due to radiation from cataloged galaxies.

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U2 - 10.3847/1538-4357/ab4817

DO - 10.3847/1538-4357/ab4817

M3 - Article

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JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

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