Veritas observations of six bright, hard-spectrum Fermi-lat blazars
We report on VERITAS very high energy (VHE; E ≥ 100GeV) observations of six blazars selected from the Fermi Large Area Telescope First Source Catalog (1FGL). The gamma-ray emission from 1FGL sources was extrapolated up to the VHE band, taking gamma-ray absorption by the extragalactic background ligh...
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todo:paper_0004637X_v759_n2_p_Aliu2023-10-03T14:02:28Z Veritas observations of six bright, hard-spectrum Fermi-lat blazars Aliu, E. Archambault, S. Arlen, T. Aune, T. Beilicke, M. Benbow, W. Böttcher, M. 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. Errando, M. Falcone, A. Federici, S. Feng, Q. Finley, J.P. Finnegan, G. Fortson, L. Furniss, A. Galante, N. Gall, D. Godambe, S. Griffin, S. Grube, J. Gyuk, G. Hanna, D. Holder, J. Huan, H. Kaaret, P. Karlsson, N. Khassen, Y. Kieda, D. Krawczynski, H. Krennrich, F. Lee, K. Madhavan, A.S. Maier, G. Majumdar, P. McArthur, S. McCann, A. Moriarty, P. Mukherjee, R. Nelson, T. De Bhróithe, A.O'. Ong, R.A. Orr, M. Otte, A.N. Park, N. Perkins, J.S. Pichel, A. Pohl, M. Prokoph, H. Quinn, J. Ragan, K. Reyes, L.C. Reynolds, P.T. Roache, E. Saxon, D.B. Sembroski, G.H. Staszak, D. Telezhinsky, I. Tešić, G. Theiling, M. Thibadeau, S. Tsurusaki, K. Varlotta, A. Vassiliev, V.V. Vincent, S. Vivier, M. Wakely, S.P. Weekes, T.C. Weinstein, A. Welsing, R. Williams, D.A. Zitzer, B. Fortin, P. Horan, D. Fumagalli, M. Kaplan, K. Prochaska, J.X. BL Lacertae objects: general gamma rays: galaxies We report on VERITAS very high energy (VHE; E ≥ 100GeV) observations of six blazars selected from the Fermi Large Area Telescope First Source Catalog (1FGL). The gamma-ray emission from 1FGL sources was extrapolated up to the VHE band, taking gamma-ray absorption by the extragalactic background light into account. This allowed the selection of six bright, hard-spectrum blazars that were good candidate TeV emitters. Spectroscopic redshift measurements were attempted with the Keck Telescope for the targets without Sloan Digital Sky Survey spectroscopic data. No VHE emission is detected during the observations of the six sources described here. Corresponding TeV upper limits are presented, along with contemporaneous Fermi observations and non-concurrent Swift UVOT and X-Ray Telescope data. The blazar broadband spectral energy distributions (SEDs) are assembled and modeled with a single-zone synchrotron self-Compton model. The SED built for each of the six blazars shows a synchrotron peak bordering between the intermediate- and high-spectrum-peak classifications, with four of the six resulting in particle-dominated emission regions. © 2012. The American Astronomical Society. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0004637X_v759_n2_p_Aliu |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
BL Lacertae objects: general gamma rays: galaxies |
spellingShingle |
BL Lacertae objects: general gamma rays: galaxies Aliu, E. Archambault, S. Arlen, T. Aune, T. Beilicke, M. Benbow, W. Böttcher, M. 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. Errando, M. Falcone, A. Federici, S. Feng, Q. Finley, J.P. Finnegan, G. Fortson, L. Furniss, A. Galante, N. Gall, D. Godambe, S. Griffin, S. Grube, J. Gyuk, G. Hanna, D. Holder, J. Huan, H. Kaaret, P. Karlsson, N. Khassen, Y. Kieda, D. Krawczynski, H. Krennrich, F. Lee, K. Madhavan, A.S. Maier, G. Majumdar, P. McArthur, S. McCann, A. Moriarty, P. Mukherjee, R. Nelson, T. De Bhróithe, A.O'. Ong, R.A. Orr, M. Otte, A.N. Park, N. Perkins, J.S. Pichel, A. Pohl, M. Prokoph, H. Quinn, J. Ragan, K. Reyes, L.C. Reynolds, P.T. Roache, E. Saxon, D.B. Sembroski, G.H. Staszak, D. Telezhinsky, I. Tešić, G. Theiling, M. Thibadeau, S. Tsurusaki, K. Varlotta, A. Vassiliev, V.V. Vincent, S. Vivier, M. Wakely, S.P. Weekes, T.C. Weinstein, A. Welsing, R. Williams, D.A. Zitzer, B. Fortin, P. Horan, D. Fumagalli, M. Kaplan, K. Prochaska, J.X. Veritas observations of six bright, hard-spectrum Fermi-lat blazars |
topic_facet |
BL Lacertae objects: general gamma rays: galaxies |
description |
We report on VERITAS very high energy (VHE; E ≥ 100GeV) observations of six blazars selected from the Fermi Large Area Telescope First Source Catalog (1FGL). The gamma-ray emission from 1FGL sources was extrapolated up to the VHE band, taking gamma-ray absorption by the extragalactic background light into account. This allowed the selection of six bright, hard-spectrum blazars that were good candidate TeV emitters. Spectroscopic redshift measurements were attempted with the Keck Telescope for the targets without Sloan Digital Sky Survey spectroscopic data. No VHE emission is detected during the observations of the six sources described here. Corresponding TeV upper limits are presented, along with contemporaneous Fermi observations and non-concurrent Swift UVOT and X-Ray Telescope data. The blazar broadband spectral energy distributions (SEDs) are assembled and modeled with a single-zone synchrotron self-Compton model. The SED built for each of the six blazars shows a synchrotron peak bordering between the intermediate- and high-spectrum-peak classifications, with four of the six resulting in particle-dominated emission regions. © 2012. The American Astronomical Society. All rights reserved. |
format |
JOUR |
author |
Aliu, E. Archambault, S. Arlen, T. Aune, T. Beilicke, M. Benbow, W. Böttcher, M. 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. Errando, M. Falcone, A. Federici, S. Feng, Q. Finley, J.P. Finnegan, G. Fortson, L. Furniss, A. Galante, N. Gall, D. Godambe, S. Griffin, S. Grube, J. Gyuk, G. Hanna, D. Holder, J. Huan, H. Kaaret, P. Karlsson, N. Khassen, Y. Kieda, D. Krawczynski, H. Krennrich, F. Lee, K. Madhavan, A.S. Maier, G. Majumdar, P. McArthur, S. McCann, A. Moriarty, P. Mukherjee, R. Nelson, T. De Bhróithe, A.O'. Ong, R.A. Orr, M. Otte, A.N. Park, N. Perkins, J.S. Pichel, A. Pohl, M. Prokoph, H. Quinn, J. Ragan, K. Reyes, L.C. Reynolds, P.T. Roache, E. Saxon, D.B. Sembroski, G.H. Staszak, D. Telezhinsky, I. Tešić, G. Theiling, M. Thibadeau, S. Tsurusaki, K. Varlotta, A. Vassiliev, V.V. Vincent, S. Vivier, M. Wakely, S.P. Weekes, T.C. Weinstein, A. Welsing, R. Williams, D.A. Zitzer, B. Fortin, P. Horan, D. Fumagalli, M. Kaplan, K. Prochaska, J.X. |
author_facet |
Aliu, E. Archambault, S. Arlen, T. Aune, T. Beilicke, M. Benbow, W. Böttcher, M. 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. Errando, M. Falcone, A. Federici, S. Feng, Q. Finley, J.P. Finnegan, G. Fortson, L. Furniss, A. Galante, N. Gall, D. Godambe, S. Griffin, S. Grube, J. Gyuk, G. Hanna, D. Holder, J. Huan, H. Kaaret, P. Karlsson, N. Khassen, Y. Kieda, D. Krawczynski, H. Krennrich, F. Lee, K. Madhavan, A.S. Maier, G. Majumdar, P. McArthur, S. McCann, A. Moriarty, P. Mukherjee, R. Nelson, T. De Bhróithe, A.O'. Ong, R.A. Orr, M. Otte, A.N. Park, N. Perkins, J.S. Pichel, A. Pohl, M. Prokoph, H. Quinn, J. Ragan, K. Reyes, L.C. Reynolds, P.T. Roache, E. Saxon, D.B. Sembroski, G.H. Staszak, D. Telezhinsky, I. Tešić, G. Theiling, M. Thibadeau, S. Tsurusaki, K. Varlotta, A. Vassiliev, V.V. Vincent, S. Vivier, M. Wakely, S.P. Weekes, T.C. Weinstein, A. Welsing, R. Williams, D.A. Zitzer, B. Fortin, P. Horan, D. Fumagalli, M. Kaplan, K. Prochaska, J.X. |
author_sort |
Aliu, E. |
title |
Veritas observations of six bright, hard-spectrum Fermi-lat blazars |
title_short |
Veritas observations of six bright, hard-spectrum Fermi-lat blazars |
title_full |
Veritas observations of six bright, hard-spectrum Fermi-lat blazars |
title_fullStr |
Veritas observations of six bright, hard-spectrum Fermi-lat blazars |
title_full_unstemmed |
Veritas observations of six bright, hard-spectrum Fermi-lat blazars |
title_sort |
veritas observations of six bright, hard-spectrum fermi-lat blazars |
url |
http://hdl.handle.net/20.500.12110/paper_0004637X_v759_n2_p_Aliu |
work_keys_str_mv |
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