The Vanishing of the Primary Emission Region in PKS 1510–089

Aharonian, F.; Stawarz, Ł.; Boisson, C.; H. E. S. S. Collaboration; Rowell, G.; Moulin, E.; de Bony de Lavergne, M.; Kluzniak, W.; Leitl, F.; Mbarubucyeye, Jean Damascene; Bradascio, F.; Rieger, F.; Khelifi, B.; Benkhali, F. Ait; Bernlohr, K.; Olivera-Nieto, L.; Fussling, M.; Shapopi, J. N. S.; O'Brien, P.; Marx, R.; Bolmont, J.; Montanari, A.; Berge, D.; Einecke, S.; Schussler, F.; Tanaka, T.; Ohm, S.; Schwanke, U.; Kostunin, D.; Sanchez, D. A.; de Ona Wilhelmi, E.; Chibueze, O.; Reichherzer, P.; Sushch, I.; Bruno, B.; Grolleron, G.; Davids, I. D.; Backes, M.; Le Stum, S.; Steppa, C.; Punch, M.; Giavitto, G.; Wach, T.; Holler, M.; Zdziarski, A. A.; Holch, Tim Lukas; Glawion, D.; Moderski, R.; Prokhorov, D. A.; Peron, G.; Wagner, S. J.; Egberts, K.; Ghafourizadeh, S.; Marchegiani, P.; Steinmassl, S.; Zywucka, N.; Chand, T.; Bulik, T.; Cotter, G.; Santangelo, A.; Bottcher, M.; Rudak, B.; Haerer, L.; Aschersleben, J.; Meyer, M.; Tsuji, N.; Kasai, E.; Brose, R.; Fegan, S.; Reimer, O.; Quirrenbach, A.; Takahashi, T.; Fontaine, G.; Sol, H.; Noel, A. Priyana; Buckley, D. A. H.; Schutte, H. M.; Luashvili, A.; Terrier, R.; Veh, J.; Katarzynski, K.; Funk, S.; Burger-Scheidlin, C.; Reimer, A.; Bi, B.; Jung-Richardt, I.; Steenkamp, R.; Salzmann, H.; Dmytriiev, A.; Mehta, A.; Zargaryan, D.; de Naurois, M.; van Soelen, B.; Mackey, J.; Vink, J.; Puhlhofer, G.; Chen, A.; Doroshenko, V.; Casanova, S.; Cooper, J.; Ashkar, H.; Lemiere, A.; Zouari, S.; Ren, H.; Joshi, V.; Cecil, R.; Hofmann, W.; Marandon, V.; Brown, A. M.; Panny, S.; Niemiec, J.; Ostrowski, M.; Martí-Devesa, G.; Sasaki, M.; Caroff, S.; Brun, F.; Leuschner, F.; Komin, Nu.; Djannati-Ataï, A.; Chandra, S.; Ricarte, H. Rueda; Zech, A.; Batzofin, R.; Jamrozy, M.; van Eldik, C.; Barbosa Martins, V.; Jankowsky, F.; Mohrmann, L.; Mitchell, A.; Chibueze, J.; Horns, D.; Ruiz-Velasco, E.; Ernenwein, J.-P.; Lenain, J.-P.; Kosack, K.; Borowska, J.; Barnard, J.; Breuhaus, M.; Suzuki, H.; Wierzcholska, A.; Becherini, Y.; Vecchi, M.; Gabici, S.; Glicenstein, J. F.; Groenewald, D.; Specovius, A.; Lang, R. G.; Cerruti, M.; Celic, J.; Spencer, S.; Bouyahiaoui, M.; Zacharias, M.; Goswami, P.; Sahakian, V.; Khatoon, R.; Panter, M.

doi:10.3847/2041-8213/ace3c0

Journal Article

PUBDB-2023-05117

The Vanishing of the Primary Emission Region in PKS 1510–089

Aharonian, F. ; Benkhali, F. A. ; Aschersleben, J. ; Ashkar, H. ; Backes, M. ; Barbosa Martins, V.DESY* ; Barnard, J. ; Batzofin, R. ; Becherini, Y. ; Berge, D.DESY* ; Bernlohr, K. ; Bi, B. ; de Bony de Lavergne, M. ; Bottcher, M. ; Boisson, C. ; Bolmont, J. ; Borowska, J. ; Bouyahiaoui, M. ; Bradascio, F. ; Breuhaus, M. ; Brose, R. ; Brown, A. M. ; Brun, F. ; Bruno, B. ; Bulik, T. ; Burger-Scheidlin, C. ; Caroff, S. ; Casanova, S. ; Cecil, R. ; Celic, J. ; Cerruti, M. ; Chand, T. ; Chandra, S. ; Chen, A. ; Chibueze, J. ; Chibueze, O. ; Cotter, G. ; Mbarubucyeye, J. D.DESY* ; Davids, I. D. ; Djannati-Ataï, A. ; Dmytriiev, A. ; Doroshenko, V. ; Egberts, K. ; Einecke, S. ; Ernenwein, J.-P. ; Fegan, S. ; Fontaine, G. ; Fussling, M. ; Funk, S. ; Gabici, S. ; Ghafourizadeh, S. ; Giavitto, G.DESY* ; Glawion, D. ; Glicenstein, J. F. ; Goswami, P. ; Grolleron, G. ; Haerer, L. ; Hofmann, W. ; Holch, T. L.DESY* ; Holler, M. ; Horns, D. ; Jamrozy, M. ; Jankowsky, F. ; Joshi, V. ; Jung-Richardt, I. ; Kasai, E. ; Katarzynski, K. ; Khatoon, R. ; Khelifi, B. ; Kluzniak, W. ; Komin, N. ; Kosack, K. ; Kostunin, D.DESY* ; Lang, R. G. ; Le Stum, S. ; Leitl, F. ; Lemiere, A. ; Lenain, J.-P. ; Leuschner, F. ; Luashvili, A. ; Mackey, J. ; Marandon, V. ; Marchegiani, P. ; Martí-Devesa, G. ; Marx, R. ; Mehta, A. ; Meyer, M. ; Mitchell, A. ; Moderski, R. ; Mohrmann, L. ; Montanari, A. ; Moulin, E. ; de Naurois, M. ; Niemiec, J. ; Noel, A. P. ; O'Brien, P. ; Ohm, S.DESY* ; Olivera-Nieto, L. ; de Ona Wilhelmi, E.Extern*DESY* ; Ostrowski, M. ; Panny, S. ; Panter, M. ; Peron, G. ; Prokhorov, D. A. ; Puhlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Reichherzer, P. ; Reimer, A. ; Reimer, O. ; Ren, H. ; Rieger, F. ; Rowell, G. ; Rudak, B. ; Ricarte, H. R. ; Ruiz-Velasco, E. ; Sahakian, V. ; Salzmann, H. ; Sanchez, D. A. ; Santangelo, A. ; Sasaki, M. ; Schussler, F. ; Schutte, H. M. ; Schwanke, U. ; Shapopi, J. N. S. ; Sol, H. ; Specovius, A. ; Spencer, S. ; Stawarz, Ł. ; Steenkamp, R. ; Steinmassl, S. ; Steppa, C. ; Sushch, I. ; Suzuki, H. ; Takahashi, T. ; Tanaka, T. ; Terrier, R. ; Tsuji, N. ; van Eldik, C. ; van Soelen, B. ; Vecchi, M. ; Veh, J. ; Vink, J. ; Wach, T. ; Wagner, S. J. ; Wierzcholska, A. ; Zacharias, M. ; Zargaryan, D. ; Zdziarski, A. A. ; Zech, A. ; Zouari, S. ; Zywucka, N. ; Buckley, D. A. H. ; Cooper, J. ; Groenewald, D. ; H. E. S. S. Collaboration (Collaboration author)

2023
Institute of Physics Publ. London

The astrophysical journal / 2 952(2), L38 (2023) [10.3847/2041-8213/ace3c0]

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Please use a persistent id in citations: doi:10.3847/2041-8213/ace3c0 doi:10.3204/PUBDB-2023-05117

Report No.: arXiv:2307.01692

Abstract: In 2021 July, PKS 1510−089 exhibited a significant flux drop in the high-energy γ-ray (by a factor 10) and optical (by a factor 5) bands and remained in this low state throughout 2022. Similarly, the optical polarization in the source vanished, resulting in the optical spectrum being fully explained through the steady flux of the accretion disk and the broad-line region. Unlike the aforementioned bands, the very-high-energy γ-ray and X-ray fluxes did not exhibit a significant flux drop from year to year. This suggests that the steady-state very-high-energy γ-ray and X-ray fluxes originate from a different emission region than the vanished parts of the high-energy γ-ray and optical jet fluxes. The latter component has disappeared through either a swing of the jet away from the line of sight or a significant drop in the photon production efficiency of the jet close to the black hole. Either change could become visible in high-resolution radio images.

Classification:

ddc:520

Note: 18 pages, 4 figures, 6 tables; accepted for publication in ApJ Letters; corresponding authors: Joleen Barnard, Markus Boettcher, Hester Schutte, Michael Zacharias

Contributing Institute(s):

High Energy Steroscopic System (ZEU-HESS)

Research Program(s):

613 - Matter and Radiation from the Universe (POF4-613) (POF4-613)

Experiment(s):

High Energy Stereoscopic System

Appears in the scientific report 2023

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Preprint Aharonian, F. ; Benkhali, F. A. ; Aschersleben, J. ; et al
The vanishing of the primary emission region in PKS 1510-089
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Record created 2023-08-21, last modified 2025-07-24

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