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  The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma rays

MAGIC Collaboration, Fermi-LAT Collaboration, Ansoldi, S., Antonelli, L. A., Arcaro, C., Baack, D., et al. (2018). The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma rays. Monthly Notices of the Royal Astronomical Society, (480), 879-892. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-375.

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MAGIC Collaboration1, Autor
Fermi-LAT Collaboration1, Autor
Ansoldi, S.1, Autor
Antonelli, L. A.1, Autor
Arcaro, C.1, Autor
Baack, D.1, Autor
Babić, A.1, Autor
Banerjee, B.1, Autor
Bangale, P.1, Autor
Barres de Almeida, U.1, Autor
Barrio, J. A.1, Autor
Becerra González, J.1, Autor
Bednarek, W.1, Autor
Bernardini, E.1, Autor
Berse, R. Ch.1, Autor
Berti, A.1, Autor
Besenrieder, J.1, Autor
Bhattacharyya, W.1, Autor
Bigongiari, C.1, Autor
Biland, A.1, Autor
Blanch, O.1, AutorBonnoli, G.1, AutorCarosi, R.1, AutorCeribella, G.1, AutorChatterjee, A.1, AutorColak, S. M.1, AutorColin, P.1, AutorColombo, E.1, AutorContreras, J. L.1, AutorCortina, J.1, AutorCovino, S.1, AutorCumani, P.1, AutorD'Elia, V.1, AutorDa Vela, P.1, AutorDazzi, F.1, AutorDe Angelis, A.1, AutorDe Lotto, B.1, AutorDelfino, M.1, AutorDelgado, J.1, AutorDi Pierro, F.1, AutorDomínguez, A.1, AutorDominis Prester, D.1, AutorDorner, D.1, AutorDoro, M.1, AutorEinecke, S.1, AutorElsaesser, D.1, AutorFallah Ramazani, V.1, AutorFattorini, A.1, AutorFernández-Barral, A.1, AutorFerrara, G.1, AutorFidalgo, D.1, AutorFoffano, L.1, AutorFonseca, M. V.1, AutorFont, L.1, AutorFruck, C.1, AutorGallozzi, S.1, AutorGarcía López, R. J.1, AutorGarczarczyk, M.1, AutorGaug, M.1, AutorGiammaria, P.1, AutorGodinović, N.1, AutorGuberman, D.1, AutorHadasch, D.1, AutorHahn, A.1, AutorHassan, T.1, AutorHayashida, M.1, AutorHerrera, J.1, AutorHoang, J.1, AutorHrupec, D.1, AutorInoue, S.1, AutorIshio, K.1, AutorIwamura, Y.1, AutorKonno, Y.1, AutorKubo, H.1, AutorKushida, J.1, AutorLamastra, A.1, AutorLelas, D.1, AutorLeone, F.1, AutorLindfors, E.1, AutorLombardi, S.1, AutorLongo, F.1, AutorLópez, M.1, AutorMaggio, C.1, AutorMajumdar, P.1, AutorMakariev, M.1, AutorManeva, G.1, AutorManganaro, M.1, AutorMannheim, K.1, AutorMaraschi, L.1, AutorMariotti, M.1, AutorMartínez, M.1, AutorMasuda, S.1, AutorMazin, D.1, AutorMielke, K.1, AutorMinev, M.1, AutorMiranda, J. M.1, AutorMirzoyan, R.1, AutorMoralejo, A.1, AutorMoreno, V.1, AutorMoretti, E.1, AutorNeustroev, V.1, AutorNiedzwiecki, A.1, AutorNievas Rosillo, M.1, AutorNigro, C.1, AutorNilsson, K.1, AutorNinci, D.1, AutorNishijima, K.1, AutorNoda, K.1, AutorNogués, L.1, AutorPaiano, S.1, AutorPalacio, J.1, AutorPaneque, D.1, AutorPaoletti, R.1, AutorParedes, J. M.1, AutorPedaletti, G.1, AutorPenil, P.1, AutorPeresano, M.1, AutorPersic, M.1, AutorPfrang, K.1, AutorPrada Moroni, P. G.1, AutorPrandini, E.1, AutorPuljak, I.1, AutorGarcia, J. R.1, AutorRhode, W.1, AutorRibó, M.1, AutorRico, J.1, AutorRighi, C.1, AutorRugliancich, A.1, AutorSaha, L.1, AutorSaito, T.1, AutorSatalecka, K.1, AutorSchweizer, T.1, AutorSitarek, J.1, AutorŠnidarić, I.1, AutorSobczynska, D.1, AutorStamerra, A.1, AutorStrzys, M.1, AutorSurić, T.1, AutorTavecchio, F.1, AutorTemnikov, P.1, AutorTerzić, T.1, AutorTeshima, M.1, AutorTorres-Albà, N.1, AutorTsujimoto, S.1, AutorVanzo, G.1, AutorVazquez Acosta, M.1, AutorVovk, I.1, AutorWard, J. E.1, AutorWill, M.1, AutorZarić, D.1, AutorCiprini, S.1, AutorDesiante, R.1, AutorCollaborators, MWL1, AutorBarcewicz, S.1, AutorHovatta, T.1, AutorJormanainen, J.1, AutorTakalo, L.1, AutorReinthal, R.1, AutorWierda, F.1, AutorLähteenmäki, A.1, AutorTammi, J.1, AutorTornikoski, M.1, AutorVera, R. J. C.1, AutorKiehlmann, S.1, AutorMax-Moerbeck, W.1, AutorReadhead, A. C. S.1, Autor mehr..
Affiliations:
1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650              

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Schlagwörter: MAGIC
 Zusammenfassung: The MAGIC telescopes observed S2 0109+22 in 2015 July during its flaring activity in high energy gamma rays observed by Fermi-LAT. We analyse the MAGIC data to characterise the very high energy (VHE) gamma-ray emission of S2 0109+22, which belongs to the subclass of intermediate synchrotron peak (ISP) BL Lac objects. We study the multi-frequency emission in order to investigate the source classification. Finally, we compare the source long-term behaviour to other VHE gamma-ray emitting (TeV) blazars. We performed a temporal and spectral analysis of the data centred around the MAGIC interval of observation (MJD 57225-57231). Long-term radio and optical data have also been investigated using the discrete correlation function. The redshift of the source is estimated through optical host-galaxy imaging and also using the amount of VHE gamma-ray absorption. The quasi-simultaneous multi-frequency spectral energy distribution (SED) is modelled with the conventional one-zone synchrotron self-Compton (SSC) model. MAGIC observations resulted in the detection of the source at a significance level of $5.3\,\sigma$. The VHE gamma-ray emission of S2 0109+22 is variable on a daily time scale. VHE gamma-ray luminosity of the source is lower than the average of TeV BL Lacs. The optical polarization, and long-term optical/radio behaviour of the source are different from the general population of TeV blazars. All these findings agree with the classification of the source as an ISP BL Lac object. We estimate the source redshift as $z = 0.36 \pm 0.07$. The SSC parameters describing the SED are rather typical for blazars.

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 Datum: 2018
 Publikationsstatus: Erschienen
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Titel: Monthly Notices of the Royal Astronomical Society
  Alternativer Titel : Mon.Not.R.Astron.Soc.
Genre der Quelle: Zeitschrift
 Urheber:
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: (480) Artikelnummer: - Start- / Endseite: 879 - 892 Identifikator: -