Simultaneous observations of the blazar PKS 2155−304 from ultra-violet to TeV energies

Abdalla, H.; Volk, H. J.; Stawarz, Ł.; Hinton, J. A.; Boisson, C.; Vincent, P.; Carosi, A.; Stern, D.; Seglar-Arroyo, M.; H. E. S. S. Collaboration; Rowell, G.; Moulin, E.; Trichard, C.; Kluzniak, W.; Arakawa, M.; Gottschall, D.; Ajello, M.; Curyło, M.; Rieger, F.; Khelifi, B.; Bernlohr, K.; Mariaud, C.; Lemiere, A.; Shafi, N.; Yoneda, H.; Seyffert, A. S.; Remy, Q.; Devin, J.; Perri, M.; Santangelo, A.; Simoni, R.; Dirson, L.; Marx, R.; Perennes, C.; Bolmont, J.; Schwemmer, S.; Berge, D.; Ruiz-Velasco, E.; Schussler, F.; Armand, C.; Lohse, T.; Blackwell, R.; Paneque, D.; Schwanke, U.; Grondin, M.-H.; Kostunin, D.; Reimer, A.; Arcaro, C.; Meintjes, P. J.; Rauth, R.; Stegmann, C.; Ndiyavala, H.; Steppa, C.; Bonnefoy, S.; O'Brien, P.; Marandon, V.; Giebels, B.; Sanchez, D. A.; de Ona Wilhelmi, E.; Bulik, T.; Takahashi, T.; Emery, G.; Davids, I. D.; Bryan, M.; Chiang, J.; Backes, M.; Uchiyama, Y.; Aharonian, F.; Heinzelmann, G.; Tluczykont, M.; Giavitto, G.; Zanin, R.; Forster, K.; Peyaud, B.; Hofmann, W.; Shiningayamwe, K.; Zdziarski, A. A.; Vasileiadis, G.; Deil, C.; Glawion, D.; Puhlhofer, G.; Tavernier, T.; Giommi, P.; Lemoine-Goumard, M.; Prokhorov, D. A.; Poireau, V.; Priyana Noel, A.; Haupt, M.; Oya, I.; Wagner, S. J.; Spir-Jacob, M.; Henri, G.; Egberts, K.; Marcowith, A.; Harrison, F. A.; Bregeon, J.; Vuillaume, T.; Chand, T.; Hahn, J.; Bottcher, M.; Sinha, A.; Tagliaferri, G.; Urry, C. M.; Rudak, B.; Romoli, C.; Saito, S.; Katz, U.; Jankowsky, D.; Buchele, M.; White, R.; Nakashima, S.; Tsuji, N.; Gallant, Y. A.; Wadiasingh, Z.; Eschbach, S.; Reimer, O.; Holch, T. L.; Quirrenbach, A.; Yang, R.; Fontaine, G.; Sol, H.; Giunti, L.; Kreter, M.; Tsirou, M.; Madsen, K. K.; Schutte, H. M.; Leser, E.; Caroff, S.; Veh, J.; Katarzynski, K.; Funk, S.; Pita, S.; Adam, R.; Petrucci, P.-O.; Madejski, G. M.; Lamanna, G.; Jung-Richardt, I.; Steenkamp, R.; Feijen, K.; Odaka, H.; Dmytriiev, A.; Tiziani, D.; Zoglauer, A.; Taylor, A. M.; Schulz, A.; Anguner, E. O.; Muller, J.; de Naurois, M.; van Soelen, B.; Puccetti, S.; Parsons, R. D.; Hermann, G.; Mackey, J.; Gaté, F.; Khangulyan, D.; Hayashida, M.; Mares, A.; Vink, J.; Majumdar, J.; Chen, A.; Doroshenko, V.; Mitchell, A. M. W.; Schlickeiser, R.; Casanova, S.; Terrier, R.; Mohamed, M.; Sailer, S.; Murach, T.; Ashkar, H.; Fegan, S.; Niederwanger, F.; Fermi-LAT Collaboration; Holler, M.; Klepser, S.; Punch, M.; Niemiec, J.; Dyks, J.; Ostrowski, M.; Martí-Devesa, G.; Brun, P.; Sasaki, M.; Barnard, M.; Brun, F.; Fiasson, A.; Komin, Nu.; Moore, C.; Djannati-Ataï, A.; Iwasaki, H.; Zorn, J.; Chandra, S.; Zech, A.; van der Walt, D. J.; Jamrozy, M.; van Eldik, C.; Maurin, G.; Katsuragawa, M.; Venter, C.; NuSTAR Collaboration; Barbosa Martins, V.; Jankowsky, F.; Piel, Q.; Colafrancesco, S.; Mohrmann, L.; Malyshev, D.; Horns, D.; Tuffs, R.; Rinchiuso, L.; Donath, A.; Ait Benkhali, F.; Ernenwein, J.-P.; Furniss, A. K.; Lenain, J.-P.; Bylund, T.; Kosack, K.; Nalewajko, K.; Breuhaus, M.; Huber, D.; Levy, C.; Wierzcholska, A.; Balokovic, M.; Becherini, Y.; Oakes, L.; Moderski, R.; Fußling, M.; Zywucka, N.; Gabici, S.; Glicenstein, J. F.; King, J.; Specovius, A.; Kastendieck, M. A.; Cerruti, M.; Senniappan, M.; Prokoph, H.; van Rensburg, C.; Renaud, M.; Raab, S.; Zacharias, M.; Ohm, S.; Sahakian, V.; deWilt, P.; Lypova, I.; Jardin-Blicq, A.; Swift Collaboration; Hoischen, C.; Panter, M.

doi:10.1051/0004-6361/201936900

Journal Article

PUBDB-2020-04667

Simultaneous observations of the blazar PKS 2155−304 from ultra-violet to TeV energies

Abdalla, H. ; Adam, R. ; Aharonian, F. ; Ait Benkhali, F. ; Anguner, E. O. ; Arakawa, M. ; Arcaro, C. ; Armand, C. ; Ashkar, H. ; Backes, M. ; Barbosa Martins, V. ; Barnard, M. ; Becherini, Y. ; Berge, D.DESY* ; Bernlohr, K. ; Blackwell, R. ; Bottcher, M. ; Boisson, C. ; Bolmont, J.DESY* ; Bonnefoy, S. ; Bregeon, J. ; Breuhaus, M. ; Brun, F. ; Brun, P. ; Bryan, M. ; Buchele, M. ; Bulik, T. ; Bylund, T. ; Caroff, S. ; Carosi, A. ; Casanova, S. ; Cerruti, M. ; Chand, T. ; Chandra, S. ; Chen, A. ; Colafrancesco, S. ; Curyło, M. ; Davids, I. D. ; Deil, C. ; Devin, J. ; deWilt, P. ; Dirson, L. ; Djannati-Ataï, A. ; Dmytriiev, A. ; Donath, A. ; Doroshenko, V. ; Dyks, J. ; Egberts, K. ; Emery, G. ; Ernenwein, J.-P. ; Eschbach, S. ; Feijen, K. ; Fegan, S. ; Fiasson, A. ; Fontaine, G. ; Funk, S. ; Fußling, M. ; Gabici, S. ; Gallant, Y. A. ; Gaté, F. ; Giavitto, G. ; Giunti, L. ; Glawion, D. ; Glicenstein, J. F. ; Gottschall, D. ; Grondin, M.-H. ; Hahn, J. ; Haupt, M. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hinton, J. A. ; Hofmann, W. ; Hoischen, C. ; Holch, T. L. ; Holler, M. ; Horns, D. ; Huber, D. ; Iwasaki, H. ; Jamrozy, M. ; Jankowsky, D. ; Jankowsky, F. ; Jardin-Blicq, A. ; Jung-Richardt, I. ; Kastendieck, M. A. ; Katarzynski, K. ; Katsuragawa, M. ; Katz, U. ; Khangulyan, D. ; Khelifi, B. ; King, J. ; Klepser, S.DESY* ; Kluzniak, W. ; Komin, N. ; Kosack, K. ; Kostunin, D.DESY* ; Kreter, M. ; Lamanna, G. ; Lemiere, A. ; Lemoine-Goumard, M. ; Lenain, J.-P. ; Leser, E. ; Levy, C. ; Lohse, T. ; Lypova, I. ; Mackey, J. ; Majumdar, J. ; Malyshev, D. ; Marandon, V. ; Marcowith, A. ; Mares, A. ; Mariaud, C. ; Martí-Devesa, G. ; Marx, R. ; Maurin, G. ; Meintjes, P. J. ; Mitchell, A. M. W. ; Moderski, R. ; Mohamed, M. ; Mohrmann, L. ; Moore, C. ; Moulin, E. ; Muller, J. ; Murach, T. ; Nakashima, S. ; de Naurois, M. ; Ndiyavala, H. ; Niederwanger, F. ; Niemiec, J. ; Oakes, L. ; O'Brien, P. ; Odaka, H. ; Ohm, S. ; de Ona Wilhelmi, E. ; Ostrowski, M. ; Oya, I.Extern* ; Panter, M. ; Parsons, R. D. ; Perennes, C. ; Petrucci, P.-O. ; Peyaud, B. ; Piel, Q. ; Pita, S. ; Poireau, V. ; Priyana Noel, A. ; Prokhorov, D. A. ; Prokoph, H. ; Puhlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Rauth, R. ; Reimer, A. ; Reimer, O. ; Remy, Q. ; Renaud, M. ; Rieger, F. ; Rinchiuso, L. ; Romoli, C. ; Rowell, G. ; Rudak, B. ; Ruiz-Velasco, E. ; Sahakian, V. ; Sailer, S. ; Saito, S. ; Sanchez, D. A. ; Santangelo, A. ; Sasaki, M. ; Schlickeiser, R. ; Schussler, F. ; Schulz, A. ; Schutte, H. M. ; Schwanke, U. ; Schwemmer, S. ; Seglar-Arroyo, M. ; Senniappan, M. ; Seyffert, A. S. ; Shafi, N. ; Shiningayamwe, K. ; Simoni, R. ; Sinha, A. ; Sol, H. ; Specovius, A. ; Spir-Jacob, M. ; Stawarz, Ł. ; Steenkamp, R. ; Stegmann, C. ; Steppa, C. ; Takahashi, T. ; Tavernier, T. ; Taylor, A. M. ; Terrier, R. ; Tiziani, D. ; Tluczykont, M. ; Trichard, C. ; Tsirou, M. ; Tsuji, N. ; Tuffs, R. ; Uchiyama, Y. ; van der Walt, D. J. ; van Eldik, C. ; van Rensburg, C. ; van Soelen, B. ; Vasileiadis, G. ; Veh, J. ; Venter, C. ; Vincent, P. ; Vink, J. ; Volk, H. J. ; Vuillaume, T. ; Wadiasingh, Z. ; Wagner, S. J. ; White, R. ; Wierzcholska, A. ; Yang, R. ; Yoneda, H. ; Zacharias, M. ; Zanin, R. ; Zdziarski, A. A. ; Zech, A. ; Zorn, J. ; Zywucka, N. ; Madejski, G. M. ; Nalewajko, K. ; Madsen, K. K. ; Chiang, J. ; Balokovic, M. ; Paneque, D. ; Furniss, A. K. ; Hayashida, M. ; Urry, C. M. ; Ajello, M. ; Harrison, F. A. ; Giebels, B. ; Stern, D. ; Forster, K. ; Giommi, P. ; Perri, M. ; Puccetti, S. ; Zoglauer, A. ; Tagliaferri, G. ; H. E. S. S. Collaboration (Collaboration author)DESY* ; NuSTAR Collaboration (Collaboration Author) ; Fermi-LAT Collaboration (Collaboration Author) ; Swift Collaboration (Collaboration Author)

2020
EDP Sciences Les Ulis

Astronomy and astrophysics 639, A42 - (2020) [10.1051/0004-6361/201936900]

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Please use a persistent id in citations: doi:10.1051/0004-6361/201936900

Report No.: arXiv:1912.07273

Abstract: Here we report the results of the first ever contemporaneous multi-wavelength observation campaign on the BL Lac object PKS 2155−304 involving Swift, NuSTAR, Fermi-LAT, and H.E.S.S. The use of these instruments allows us to cover a broad energy range, which is important for disentangling the different radiative mechanisms. The source, observed from June 2013 to October 2013, was found in a low flux state with respect to previous observations but exhibited highly significant flux variability in the X-rays. The high-energy end of the synchrotron spectrum can be traced up to 40 keV without significant contamination by high-energy emission. A one-zone synchrotron self-Compton model was used to reproduce the broadband flux of the source for all the observations presented here but failed for previous observations made in April 2013. A lepto-hadronic solution was then explored to explain these earlier observational results.

Keyword(s): flux ; synchrotron ; blazar ; GLAST ; ultraviolet ; X-ray ; HESS ; BL Lacertae objects: individual: PKS 2155−304 ; astroparticle physics

Classification:

ddc:520

Note: 15 pages, 4 figures

Contributing Institute(s):

High Energy Steroscopic System (ZEU-HESS)

Research Program(s):

613 - Matter and Radiation from the Universe (POF3-613) (POF3-613)

Experiment(s):

High Energy Stereoscopic System

Appears in the scientific report 2020

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Record created 2020-11-30, last modified 2025-07-29

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