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TeV flaring activity of the AGN PKS 0625-354 in November 2018

Fuente: arXiv
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Main Authors: Collaboration, H. E. S. S., Aharonian, F., Benkhali, F. Ait, Aschersleben, J., Ashkar, H., Backes, M., Baktash, A., Martins, V. Barbosa, Barnard, J., Batzofin, R., Becherini, Y., Berge, D., Bernlöhr, K., Bi, B., Böttcher, M., Boisson, C., Bolmont, J., de Lavergne, M. de Bony, Borowska, J., Bradascio, F., Breuhaus, M., Brose, R., Brown, A., Brun, F., Bruno, B., Bulik, T., Burger-Scheidlin, C., Bylund, T., Caroff, S., Casanova, S., Cecil, R., Celic, J., Cerruti, M., Chand, T., Chandra, S., Chen, A., Chibueze, J., Chibueze, O., Cotter, G., Mbarubucyeye, J. Damascene, Davids, I. D., Djuvsland, J., Dmytriiev, A., Doroshenko, V., Egberts, K., Einecke, S., Ernenwein, J. -P., Fontaine, G., Füßling, M., Funk, S., Gabici, S., Ghafourizadeh, S., Giavitto, G., Glawion, D., Glicenstein, J. F., Glombitza, J., Goswami, P., Grolleron, G., Haerer, L., Hinton, J. A., Holch, T. L., Holler, M., Horns, D., Jamrozy, M., Jankowsky, F., Joshi, V., Jung-Richardt, I., Kasai, E., Katarzyński, K., Khatoon, R., Kh'elifi, B., z, niak, Komin, Nu., Kosack, K., Kostunin, D., Lang, R. G., Stum, S. Le, Leitl, F., Lemière, A., Lenain, J. -P., Leuschner, F., Luashvili, A., Mackey, J., Marx, R., Mehta, A., Meyer, M., Mitchell, A., Moderski, R., Montanari, A., Moulin, E., de Naurois, M., Niemiec, J., O'Brien, P., Ohm, S., Olivera-Nieto, L., Wilhelmi, E. de Ona, Ostrowski, M., Panny, S., Parsons, R. D., Pita, S., Prokhorov, D. A., Pühlhofer, G., Punch, M., Quirrenbach, A., Reichherzer, P., Reimer, A., Reimer, O., Ren, H., Rieger, F., Rudak, B., Sahakian, V., Salzmann, H., Sanchez, D. A., Sasaki, M., Schüssler, F., Schutte, H. M., Shapopi, J. N. S., Sol, H., Specovius, A., Spencer, S., L., Stawarz, Steenkamp, R., Steinmassl, S., Streil, K., Sushch, I., Suzuki, H., Takahashi, T., Tanaka, T., van Eldik, C., Vecchi, M., Veh, J., Venter, C., Wagner, S. J., Wierzcholska, A., Zacharias, M., Zargaryan, D., Zdziarski, A. A., Zech, A., Zouari, S., Żywucka, N.
Format: Preprint
Published: 2024
Subjects:
High Energy Astrophysical Phenomena
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author Collaboration, H. E. S. S.
Aharonian, F.
Benkhali, F. Ait
Aschersleben, J.
Ashkar, H.
Backes, M.
Baktash, A.
Martins, V. Barbosa
Barnard, J.
Batzofin, R.
Becherini, Y.
Berge, D.
Bernlöhr, K.
Bi, B.
Böttcher, M.
Boisson, C.
Bolmont, J.
de Lavergne, M. de Bony
Borowska, J.
Bradascio, F.
Breuhaus, M.
Brose, R.
Brown, A.
Brun, F.
Bruno, B.
Bulik, T.
Burger-Scheidlin, C.
Bylund, T.
Caroff, S.
Casanova, S.
Cecil, R.
Celic, J.
Cerruti, M.
Chand, T.
Chandra, S.
Chen, A.
Chibueze, J.
Chibueze, O.
Cotter, G.
Mbarubucyeye, J. Damascene
Davids, I. D.
Djuvsland, J.
Dmytriiev, A.
Doroshenko, V.
Egberts, K.
Einecke, S.
Ernenwein, J. -P.
Fontaine, G.
Füßling, M.
Funk, S.
Gabici, S.
Ghafourizadeh, S.
Giavitto, G.
Glawion, D.
Glicenstein, J. F.
Glombitza, J.
Goswami, P.
Grolleron, G.
Haerer, L.
Hinton, J. A.
Holch, T. L.
Holler, M.
Horns, D.
Jamrozy, M.
Jankowsky, F.
Joshi, V.
Jung-Richardt, I.
Kasai, E.
Katarzyński, K.
Khatoon, R.
Kh'elifi, B.
z
niak
Komin, Nu.
Kosack, K.
Kostunin, D.
Lang, R. G.
Stum, S. Le
Leitl, F.
Lemière, A.
Lenain, J. -P.
Leuschner, F.
Luashvili, A.
Mackey, J.
Marx, R.
Mehta, A.
Meyer, M.
Mitchell, A.
Moderski, R.
Montanari, A.
Moulin, E.
de Naurois, M.
Niemiec, J.
O'Brien, P.
Ohm, S.
Olivera-Nieto, L.
Wilhelmi, E. de Ona
Ostrowski, M.
Panny, S.
Parsons, R. D.
Pita, S.
Prokhorov, D. A.
Pühlhofer, G.
Punch, M.
Quirrenbach, A.
Reichherzer, P.
Reimer, A.
Reimer, O.
Ren, H.
Rieger, F.
Rudak, B.
Sahakian, V.
Salzmann, H.
Sanchez, D. A.
Sasaki, M.
Schüssler, F.
Schutte, H. M.
Shapopi, J. N. S.
Sol, H.
Specovius, A.
Spencer, S.
L.
Stawarz
Steenkamp, R.
Steinmassl, S.
Streil, K.
Sushch, I.
Suzuki, H.
Takahashi, T.
Tanaka, T.
van Eldik, C.
Vecchi, M.
Veh, J.
Venter, C.
Wagner, S. J.
Wierzcholska, A.
Zacharias, M.
Zargaryan, D.
Zdziarski, A. A.
Zech, A.
Zouari, S.
Żywucka, N.
author_facet Collaboration, H. E. S. S.
Aharonian, F.
Benkhali, F. Ait
Aschersleben, J.
Ashkar, H.
Backes, M.
Baktash, A.
Martins, V. Barbosa
Barnard, J.
Batzofin, R.
Becherini, Y.
Berge, D.
Bernlöhr, K.
Bi, B.
Böttcher, M.
Boisson, C.
Bolmont, J.
de Lavergne, M. de Bony
Borowska, J.
Bradascio, F.
Breuhaus, M.
Brose, R.
Brown, A.
Brun, F.
Bruno, B.
Bulik, T.
Burger-Scheidlin, C.
Bylund, T.
Caroff, S.
Casanova, S.
Cecil, R.
Celic, J.
Cerruti, M.
Chand, T.
Chandra, S.
Chen, A.
Chibueze, J.
Chibueze, O.
Cotter, G.
Mbarubucyeye, J. Damascene
Davids, I. D.
Djuvsland, J.
Dmytriiev, A.
Doroshenko, V.
Egberts, K.
Einecke, S.
Ernenwein, J. -P.
Fontaine, G.
Füßling, M.
Funk, S.
Gabici, S.
Ghafourizadeh, S.
Giavitto, G.
Glawion, D.
Glicenstein, J. F.
Glombitza, J.
Goswami, P.
Grolleron, G.
Haerer, L.
Hinton, J. A.
Holch, T. L.
Holler, M.
Horns, D.
Jamrozy, M.
Jankowsky, F.
Joshi, V.
Jung-Richardt, I.
Kasai, E.
Katarzyński, K.
Khatoon, R.
Kh'elifi, B.
z
niak
Komin, Nu.
Kosack, K.
Kostunin, D.
Lang, R. G.
Stum, S. Le
Leitl, F.
Lemière, A.
Lenain, J. -P.
Leuschner, F.
Luashvili, A.
Mackey, J.
Marx, R.
Mehta, A.
Meyer, M.
Mitchell, A.
Moderski, R.
Montanari, A.
Moulin, E.
de Naurois, M.
Niemiec, J.
O'Brien, P.
Ohm, S.
Olivera-Nieto, L.
Wilhelmi, E. de Ona
Ostrowski, M.
Panny, S.
Parsons, R. D.
Pita, S.
Prokhorov, D. A.
Pühlhofer, G.
Punch, M.
Quirrenbach, A.
Reichherzer, P.
Reimer, A.
Reimer, O.
Ren, H.
Rieger, F.
Rudak, B.
Sahakian, V.
Salzmann, H.
Sanchez, D. A.
Sasaki, M.
Schüssler, F.
Schutte, H. M.
Shapopi, J. N. S.
Sol, H.
Specovius, A.
Spencer, S.
L.
Stawarz
Steenkamp, R.
Steinmassl, S.
Streil, K.
Sushch, I.
Suzuki, H.
Takahashi, T.
Tanaka, T.
van Eldik, C.
Vecchi, M.
Veh, J.
Venter, C.
Wagner, S. J.
Wierzcholska, A.
Zacharias, M.
Zargaryan, D.
Zdziarski, A. A.
Zech, A.
Zouari, S.
Żywucka, N.
contents Most $γ$-ray detected active galactic nuclei are blazars with one of their relativistic jets pointing towards the Earth. Only a few objects belong to the class of radio galaxies or misaligned blazars. Here, we investigate the nature of the object PKS 0625-354, its $γ$-ray flux and spectral variability and its broad-band spectral emission with observations from H.E.S.S., Fermi-LAT, Swift-XRT, and UVOT taken in November 2018. The H.E.S.S. light curve above 200 GeV shows an outburst in the first night of observations followed by a declining flux with a halving time scale of 5.9h. The $γγ$-opacity constrains the upper limit of the angle between the jet and the line of sight to $\sim10^\circ$. The broad-band spectral energy distribution shows two humps and can be well fitted with a single-zone synchrotron self Compton emission model. We conclude that PKS 0625-354, as an object showing clear features of both blazars and radio galaxies, can be classified as an intermediate active galactic nuclei. Multi-wavelength studies of such intermediate objects exhibiting features of both blazars and radio galaxies are sparse but crucial for the understanding of the broad-band emission of $γ$-ray detected active galactic nuclei in general.
format Preprint
id arxiv_https___arxiv_org_abs_2401_07071
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle TeV flaring activity of the AGN PKS 0625-354 in November 2018
Collaboration, H. E. S. S.
Aharonian, F.
Benkhali, F. Ait
Aschersleben, J.
Ashkar, H.
Backes, M.
Baktash, A.
Martins, V. Barbosa
Barnard, J.
Batzofin, R.
Becherini, Y.
Berge, D.
Bernlöhr, K.
Bi, B.
Böttcher, M.
Boisson, C.
Bolmont, J.
de Lavergne, M. de Bony
Borowska, J.
Bradascio, F.
Breuhaus, M.
Brose, R.
Brown, A.
Brun, F.
Bruno, B.
Bulik, T.
Burger-Scheidlin, C.
Bylund, T.
Caroff, S.
Casanova, S.
Cecil, R.
Celic, J.
Cerruti, M.
Chand, T.
Chandra, S.
Chen, A.
Chibueze, J.
Chibueze, O.
Cotter, G.
Mbarubucyeye, J. Damascene
Davids, I. D.
Djuvsland, J.
Dmytriiev, A.
Doroshenko, V.
Egberts, K.
Einecke, S.
Ernenwein, J. -P.
Fontaine, G.
Füßling, M.
Funk, S.
Gabici, S.
Ghafourizadeh, S.
Giavitto, G.
Glawion, D.
Glicenstein, J. F.
Glombitza, J.
Goswami, P.
Grolleron, G.
Haerer, L.
Hinton, J. A.
Holch, T. L.
Holler, M.
Horns, D.
Jamrozy, M.
Jankowsky, F.
Joshi, V.
Jung-Richardt, I.
Kasai, E.
Katarzyński, K.
Khatoon, R.
Kh'elifi, B.
z
niak
Komin, Nu.
Kosack, K.
Kostunin, D.
Lang, R. G.
Stum, S. Le
Leitl, F.
Lemière, A.
Lenain, J. -P.
Leuschner, F.
Luashvili, A.
Mackey, J.
Marx, R.
Mehta, A.
Meyer, M.
Mitchell, A.
Moderski, R.
Montanari, A.
Moulin, E.
de Naurois, M.
Niemiec, J.
O'Brien, P.
Ohm, S.
Olivera-Nieto, L.
Wilhelmi, E. de Ona
Ostrowski, M.
Panny, S.
Parsons, R. D.
Pita, S.
Prokhorov, D. A.
Pühlhofer, G.
Punch, M.
Quirrenbach, A.
Reichherzer, P.
Reimer, A.
Reimer, O.
Ren, H.
Rieger, F.
Rudak, B.
Sahakian, V.
Salzmann, H.
Sanchez, D. A.
Sasaki, M.
Schüssler, F.
Schutte, H. M.
Shapopi, J. N. S.
Sol, H.
Specovius, A.
Spencer, S.
L.
Stawarz
Steenkamp, R.
Steinmassl, S.
Streil, K.
Sushch, I.
Suzuki, H.
Takahashi, T.
Tanaka, T.
van Eldik, C.
Vecchi, M.
Veh, J.
Venter, C.
Wagner, S. J.
Wierzcholska, A.
Zacharias, M.
Zargaryan, D.
Zdziarski, A. A.
Zech, A.
Zouari, S.
Żywucka, N.
High Energy Astrophysical Phenomena
Most $γ$-ray detected active galactic nuclei are blazars with one of their relativistic jets pointing towards the Earth. Only a few objects belong to the class of radio galaxies or misaligned blazars. Here, we investigate the nature of the object PKS 0625-354, its $γ$-ray flux and spectral variability and its broad-band spectral emission with observations from H.E.S.S., Fermi-LAT, Swift-XRT, and UVOT taken in November 2018. The H.E.S.S. light curve above 200 GeV shows an outburst in the first night of observations followed by a declining flux with a halving time scale of 5.9h. The $γγ$-opacity constrains the upper limit of the angle between the jet and the line of sight to $\sim10^\circ$. The broad-band spectral energy distribution shows two humps and can be well fitted with a single-zone synchrotron self Compton emission model. We conclude that PKS 0625-354, as an object showing clear features of both blazars and radio galaxies, can be classified as an intermediate active galactic nuclei. Multi-wavelength studies of such intermediate objects exhibiting features of both blazars and radio galaxies are sparse but crucial for the understanding of the broad-band emission of $γ$-ray detected active galactic nuclei in general.
title TeV flaring activity of the AGN PKS 0625-354 in November 2018
topic High Energy Astrophysical Phenomena
url https://arxiv.org/abs/2401.07071

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