VHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorAcciari, V. A.en_US
dc.contributor.authorAnsoldi, S.en_US
dc.contributor.authorAntonelli, L. A.en_US
dc.contributor.authorArbet Engels, A.en_US
dc.contributor.authorArtero, M.en_US
dc.contributor.authorAsano, K.en_US
dc.contributor.authorBaack, D.en_US
dc.contributor.authorBabić, A.en_US
dc.contributor.authorBaquero, A.en_US
dc.contributor.authorBarres De Almeida, U.en_US
dc.contributor.authorBarrio, J. A.en_US
dc.contributor.authorBecerra González, J.en_US
dc.contributor.authorBednarek, W.en_US
dc.contributor.authorBellizzi, L.en_US
dc.contributor.authorBernardini, E.en_US
dc.contributor.authorBernardos, M.en_US
dc.contributor.authorBerti, A.en_US
dc.contributor.authorBesenrieder, J.en_US
dc.contributor.authorBhattacharyya, W.en_US
dc.contributor.authorBigongiari, C.en_US
dc.contributor.authorBiland, A.en_US
dc.contributor.authorBlanch, O.en_US
dc.contributor.authorBonnoli, G.en_US
dc.contributor.authorBošnjak, A.en_US
dc.contributor.authorBusetto, G.en_US
dc.contributor.authorCarosi, R.en_US
dc.contributor.authorCeribella, G.en_US
dc.contributor.authorCerruti, M.en_US
dc.contributor.authorChai, Y.en_US
dc.contributor.authorChilingarian, A.en_US
dc.contributor.authorCikota, S.en_US
dc.contributor.authorColak, S. M.en_US
dc.contributor.authorColombo, E.en_US
dc.contributor.authorContreras, J. L.en_US
dc.contributor.authorCortina, J.en_US
dc.contributor.authorCovino, S.en_US
dc.contributor.authorD'Amico, G.en_US
dc.contributor.authorD'Elia, V.en_US
dc.contributor.authorDa Vela, P.en_US
dc.contributor.authorDazzi, F.en_US
dc.contributor.authorDe Angelis, A.en_US
dc.contributor.authorDe Lotto, B.en_US
dc.contributor.authorDelfino, M.en_US
dc.contributor.authorDelgado, J.en_US
dc.contributor.authorDelgado Mendez, C.en_US
dc.contributor.authorDepaoli, D.en_US
dc.contributor.authorDi Pierro, F.en_US
dc.contributor.authorDi Venere, L.en_US
dc.contributor.authorDo Souto Espiñeira, E.en_US
dc.contributor.authorDominis Prester, D.en_US
dc.contributor.authorDonini, A.en_US
dc.contributor.authorDorner, D.en_US
dc.contributor.authorDoro, M.en_US
dc.contributor.authorElsaesser, D.en_US
dc.contributor.authorFallah Ramazani, V.en_US
dc.contributor.authorFattorini, A.en_US
dc.contributor.authorFerrara, G.en_US
dc.contributor.authorFoffano, L.en_US
dc.contributor.authorFonseca, M. V.en_US
dc.contributor.authorFont, L.en_US
dc.contributor.authorFruck, C.en_US
dc.contributor.authorFukami, S.en_US
dc.contributor.authorGarciá López, R. J.en_US
dc.contributor.authorGarczarczyk, M.en_US
dc.contributor.authorGasparyan, S.en_US
dc.contributor.authorGaug, M.en_US
dc.contributor.authorGiglietto, N.en_US
dc.contributor.authorGiordano, F.en_US
dc.contributor.authorGliwny, P.en_US
dc.contributor.authorGodinović, N.en_US
dc.contributor.authorGreen, J. G.en_US
dc.contributor.authorGreen, D.en_US
dc.contributor.authorHadasch, D.en_US
dc.contributor.authorHahn, A.en_US
dc.contributor.authorHeckmann, L.en_US
dc.contributor.authorHerrera, J.en_US
dc.contributor.authorHoang, J.en_US
dc.contributor.authorHrupec, D.en_US
dc.contributor.authorHütten, M.en_US
dc.contributor.authorInada, T.en_US
dc.contributor.authorInoue, S.en_US
dc.contributor.authorIshio, K.en_US
dc.contributor.authorIwamura, Y.en_US
dc.contributor.authorJormanainen, J.en_US
dc.contributor.authorJouvin, L.en_US
dc.contributor.authorKajiwara, Y.en_US
dc.contributor.authorKarjalainen, M.en_US
dc.contributor.authorKerszberg, D.en_US
dc.contributor.authorKobayashi, Y.en_US
dc.contributor.authorKubo, H.en_US
dc.contributor.authorKushida, J.en_US
dc.contributor.authorLamastra, A.en_US
dc.contributor.authorLelas, D.en_US
dc.contributor.authorLeone, F.en_US
dc.contributor.authorLindfors, E.en_US
dc.contributor.authorLombardi, S.en_US
dc.contributor.authorLongo, F.en_US
dc.contributor.authorLópez-Coto, R.en_US
dc.contributor.authorLópez-Moya, M.en_US
dc.contributor.authorLópez-Oramas, A.en_US
dc.contributor.authorLoporchio, S.en_US
dc.contributor.authorMachado De Oliveira Fraga, B.en_US
dc.contributor.authorMaggio, C.en_US
dc.contributor.authorMajumdar, P.en_US
dc.contributor.authorMakariev, M.en_US
dc.contributor.authorMallamaci, M.en_US
dc.contributor.authorManeva, G.en_US
dc.contributor.authorManganaro, M.en_US
dc.contributor.authorMannheim, K.en_US
dc.contributor.authorMaraschi, L.en_US
dc.contributor.authorMariotti, M.en_US
dc.contributor.authorMartínez, M.en_US
dc.contributor.authorMazin, D.en_US
dc.contributor.authorMender, S.en_US
dc.contributor.authorMicánović, S.en_US
dc.contributor.authorMiceli, D.en_US
dc.contributor.authorMiener, T.en_US
dc.contributor.authorMinev, M.en_US
dc.contributor.authorMiranda, J. M.en_US
dc.contributor.authorMirzoyan, R.en_US
dc.contributor.authorMolina, E.en_US
dc.contributor.authorMoralejo, A.en_US
dc.contributor.authorMorcuende, D.en_US
dc.contributor.authorMoreno, V.en_US
dc.contributor.authorMoretti, E.en_US
dc.contributor.authorNeustroev, V.en_US
dc.contributor.authorNigro, C.en_US
dc.contributor.authorNilsson, K.en_US
dc.contributor.authorNinci, D.en_US
dc.contributor.authorNishijima, K.en_US
dc.contributor.authorNoda, K.en_US
dc.contributor.authorNozaki, S.en_US
dc.contributor.authorOhtani, Y.en_US
dc.contributor.authorOka, T.en_US
dc.contributor.authorOtero-Santos, J.en_US
dc.contributor.authorPaiano, S.en_US
dc.contributor.authorPalatiello, M.en_US
dc.contributor.authorPaneque, D.en_US
dc.contributor.authorPaoletti, R.en_US
dc.contributor.authorParedes, J. M.en_US
dc.contributor.authorPavletić, L.en_US
dc.contributor.authorPeñil, P.en_US
dc.contributor.authorPerennes, C.en_US
dc.contributor.authorPersic, M.en_US
dc.contributor.authorPrada Moroni, P. G.en_US
dc.contributor.authorPrandini, E.en_US
dc.contributor.authorPriyadarshi, C.en_US
dc.contributor.authorPuljak, I.en_US
dc.contributor.authorRhode, W.en_US
dc.contributor.authorRibó, M.en_US
dc.contributor.authorRico, J.en_US
dc.contributor.authorRighi, C.en_US
dc.contributor.authorRugliancich, A.en_US
dc.contributor.authorSaha, L.en_US
dc.contributor.authorSahakyan, N.en_US
dc.contributor.authorSaito, T.en_US
dc.contributor.authorSakurai, S.en_US
dc.contributor.authorSatalecka, K.en_US
dc.contributor.authorSaturni, F. G.en_US
dc.contributor.authorSchleicher, B.en_US
dc.contributor.authorSchmidt, K.en_US
dc.contributor.authorSchweizer, T.en_US
dc.contributor.authorSitarek, J.en_US
dc.contributor.authorŠnidarić, I.en_US
dc.contributor.authorSobczynska, D.en_US
dc.contributor.authorSpolon, A.en_US
dc.contributor.authorStamerra, A.en_US
dc.contributor.authorStrom, D.en_US
dc.contributor.authorStrzys, M.en_US
dc.contributor.authorSuda, Y.en_US
dc.contributor.authorSurić, T.en_US
dc.contributor.authorTakahashi, M.en_US
dc.contributor.authorTavecchio, F.en_US
dc.contributor.authorTemnikov, P.en_US
dc.contributor.authorTerzić, T.en_US
dc.contributor.authorTeshima, M.en_US
dc.contributor.authorTorres-Albà, N.en_US
dc.contributor.authorTosti, L.en_US
dc.contributor.authorTruzzi, S.en_US
dc.contributor.authorTutone, A.en_US
dc.contributor.authorVan Scherpenberg, J.en_US
dc.contributor.authorVanzo, G.en_US
dc.contributor.authorVazquez Acosta, M.en_US
dc.contributor.authorVentura, S.en_US
dc.contributor.authorVerguilov, V.en_US
dc.contributor.authorVigorito, C. F.en_US
dc.contributor.authorVitale, V.en_US
dc.contributor.authorVovk, I.en_US
dc.contributor.authorWill, M.en_US
dc.contributor.authorZarić, D.en_US
dc.contributor.authorAngioni, R.en_US
dc.contributor.authorD'Ammando, F.en_US
dc.contributor.authorCiprini, S.en_US
dc.contributor.authorCheung, C. C.en_US
dc.contributor.authorOrienti, M.en_US
dc.contributor.authorPacciani, L.en_US
dc.contributor.authorPrajapati, P.en_US
dc.contributor.authorKumar, P.en_US
dc.contributor.authorGanesh, S.en_US
dc.contributor.authorKurtenkov, A.en_US
dc.contributor.authorMarchini, A.en_US
dc.contributor.authorCarrasco, L.en_US
dc.contributor.authorEscobedo, G.en_US
dc.contributor.authorPorras, A.en_US
dc.contributor.authorRecillas, E.en_US
dc.contributor.authorLähteenmäki, A.en_US
dc.contributor.authorTornikoski, M.en_US
dc.contributor.authorBerton, M.en_US
dc.contributor.authorTammi, J.en_US
dc.contributor.authorVera, R. J.C.en_US
dc.contributor.authorJorstad, S. G.en_US
dc.contributor.authorMarscher, A. P.en_US
dc.contributor.authorWeaver, Z. R.en_US
dc.contributor.authorHart, M.en_US
dc.contributor.authorHallum, M. K.en_US
dc.contributor.authorLarionov, V. M.en_US
dc.contributor.authorBorman, G. A.en_US
dc.contributor.authorGrishina, T. S.en_US
dc.contributor.authorKopatskaya, E. N.en_US
dc.contributor.authorLarionova, E. G.en_US
dc.contributor.authorNikiforova, A. A.en_US
dc.contributor.authorMorozova, D. A.en_US
dc.contributor.authorSavchenko, S. S.en_US
dc.contributor.authorTroitskaya, Yu V.en_US
dc.contributor.authorTroitsky, I. S.en_US
dc.contributor.authorVasilyev, A. A.en_US
dc.contributor.authorHodges, M.en_US
dc.contributor.authorHovatta, T.en_US
dc.contributor.authorKiehlmann, S.en_US
dc.contributor.authorMax-Moerbeck, W.en_US
dc.contributor.authorReadhead, A. C.S.en_US
dc.contributor.authorReeves, R.en_US
dc.contributor.authorPearson, T. J.en_US
dc.contributor.departmentUniversity of La Lagunaen_US
dc.contributor.departmentUniversity of Udineen_US
dc.contributor.departmentNational Institute for Astrophysics (INAF)en_US
dc.contributor.departmentSwiss Federal Institute of Technology Zurichen_US
dc.contributor.departmentInstitute for High Energy Physicsen_US
dc.contributor.departmentUniversity of Tokyoen_US
dc.contributor.departmentTU Dortmund Universityen_US
dc.contributor.departmentUniversity of Zagreben_US
dc.contributor.departmentComplutense University of Madriden_US
dc.contributor.departmentCentro Brasileiro de Pesquisas Físicasen_US
dc.contributor.departmentUniversity of Łódźen_US
dc.contributor.departmentUniversity of Sienaen_US
dc.contributor.departmentGerman Electron Synchrotronen_US
dc.contributor.departmentUniversity of Padovaen_US
dc.contributor.departmentUniversity of Turinen_US
dc.contributor.departmentMax Planck Institute for Physicsen_US
dc.contributor.departmentUniversity of Pisaen_US
dc.contributor.departmentUniversity of Barcelonaen_US
dc.contributor.departmentA. Alikhanian Yerevan Institute of Physicsen_US
dc.contributor.departmentCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas - CIEMATen_US
dc.contributor.departmentPolytechnic University of Barien_US
dc.contributor.departmentUniversity of Rijekaen_US
dc.contributor.departmentUniversity of Würzburgen_US
dc.contributor.departmentUniversity of Turkuen_US
dc.contributor.departmentAutonomous University of Barcelonaen_US
dc.contributor.departmentNational Academy of Sciences of the Republic of Armeniaen_US
dc.contributor.departmentUniversity of Spliten_US
dc.contributor.departmentJosip Juraj Strossmayer University of Osijeken_US
dc.contributor.departmentKyoto Universityen_US
dc.contributor.departmentTokai Universityen_US
dc.contributor.departmentSaha Institute of Nuclear Physicsen_US
dc.contributor.departmentBulgarian Academy of Sciencesen_US
dc.contributor.departmentUniversity of Ouluen_US
dc.contributor.departmentRuder Boskovic Instituteen_US
dc.contributor.departmentNational Institute for Nuclear Physicsen_US
dc.contributor.departmentUniversity of Rome Tor Vergataen_US
dc.contributor.departmentAgenzia Spaziale Italianaen_US
dc.contributor.departmentIstituto di Astrofisica Spaziale e Fisica Cosmica di Bolognaen_US
dc.contributor.departmentNaval Research Laboratoryen_US
dc.contributor.departmentPhysical Research Laboratory Indiaen_US
dc.contributor.departmentInstituto Nacional de Astrofísica, Óptica y Electrónicaen_US
dc.contributor.departmentMetsähovi Radio Observatoryen_US
dc.contributor.departmentBoston Universityen_US
dc.contributor.departmentSt. Petersburg State Universityen_US
dc.contributor.departmentCrimean Astrophysical Observatoryen_US
dc.contributor.departmentCalifornia Institute of Technologyen_US
dc.contributor.departmentFoundation for Research and Technology - Hellasen_US
dc.contributor.departmentUniversidad de Chileen_US
dc.contributor.departmentUniversidad de Concepciónen_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen
dc.date.accessioned2021-04-20T06:47:48Z
dc.date.available2021-04-20T06:47:48Z
dc.date.issued2021-03-29en_US
dc.descriptionPublisher Copyright: © ESO 2021. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
dc.description.abstractContext. QSO B1420+326 is a blazar classified as a flat-spectrum radio quasar (FSRQ). At the beginning of the year 2020, it was found to be in an enhanced flux state and an extensive multiwavelength campaign allowed us to trace the evolution of the flare. Aims. We search for very high-energy (VHE) gamma-ray emission from QSO B1420+326 during this flaring state. We aim to characterize and model the broadband emission of the source over different phases of the flare. Methods. The source was observed with a number of instruments in radio, near-infrared, optical (including polarimetry and spectroscopy), ultraviolet, X-ray, and gamma-ray bands. We use dedicated optical spectroscopy results to estimate the accretion disk and the dust torus luminosity. We performed spectral energy distribution modeling in the framework of combined synchrotron-self-Compton and external Compton scenario in which the electron energy distribution is partially determined from acceleration and cooling processes. Results. During the enhanced state, the flux of both SED components of QSO B1420+326 drastically increased and the peaks were shifted to higher energies. Follow-up observations with the MAGIC telescopes led to the detection of VHE gamma-ray emission from this source, making it one of only a handful of FSRQs known in this energy range. Modeling allows us to constrain the evolution of the magnetic field and electron energy distribution in the emission region. The gamma-ray flare was accompanied by a rotation of the optical polarization vector during a low -polarization state. Also, a new superluminal radio knot contemporaneously appeared in the radio image of the jet. The optical spectroscopy shows a prominent FeII bump with flux evolving together with the continuum emission and a MgII line with varying equivalent width.en
dc.description.versionPeer revieweden
dc.format.extent19
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationAcciari , V A , Ansoldi , S , Antonelli , L A , Arbet Engels , A , Artero , M , Asano , K , Baack , D , Babić , A , Baquero , A , Barres De Almeida , U , Barrio , J A , Becerra González , J , Bednarek , W , Bellizzi , L , Bernardini , E , Bernardos , M , Berti , A , Besenrieder , J , Bhattacharyya , W , Bigongiari , C , Biland , A , Blanch , O , Bonnoli , G , Bošnjak , A , Busetto , G , Carosi , R , Ceribella , G , Cerruti , M , Chai , Y , Chilingarian , A , Cikota , S , Colak , S M , Colombo , E , Contreras , J L , Cortina , J , Covino , S , D'Amico , G , D'Elia , V , Da Vela , P , Dazzi , F , De Angelis , A , De Lotto , B , Delfino , M , Delgado , J , Delgado Mendez , C , Depaoli , D , Di Pierro , F , Di Venere , L , Do Souto Espiñeira , E , Dominis Prester , D , Donini , A , Dorner , D , Doro , M , Elsaesser , D , Fallah Ramazani , V , Fattorini , A , Ferrara , G , Foffano , L , Fonseca , M V , Font , L , Fruck , C , Fukami , S , Garciá López , R J , Garczarczyk , M , Gasparyan , S , Gaug , M , Giglietto ,N , Giordano , F , Gliwny , P , Godinović , N , Green , J G , Green , D , Hadasch , D , Hahn , A , Heckmann , L , Herrera , J , Hoang , J , Hrupec , D , Hütten , M , Inada , T , Inoue , S , Ishio , K , Iwamura , Y , Jormanainen , J , Jouvin , L , Kajiwara , Y , Karjalainen , M , Kerszberg , D , Kobayashi , Y , Kubo , H , Kushida , J , Lamastra , A , Lelas , D , Leone , F , Lindfors , E , Lombardi , S , Longo , F , López-Coto , R , López-Moya , M , López-Oramas , A , Loporchio , S , Machado De Oliveira Fraga , B , Maggio , C , Majumdar , P , Makariev , M , Mallamaci , M , Maneva , G , Manganaro , M , Mannheim , K , Maraschi , L , Mariotti , M , Martínez , M , Mazin , D , Mender , S , Micánović , S , Miceli , D , Miener , T , Minev , M , Miranda , J M , Mirzoyan , R , Molina , E , Moralejo , A , Morcuende , D , Moreno , V , Moretti , E , Neustroev , V , Nigro , C , Nilsson , K , Ninci , D , Nishijima , K , Noda , K , Nozaki , S , Ohtani , Y , Oka , T , Otero-Santos , J , Paiano , S , Palatiello , M , Paneque ,D , Paoletti , R , Paredes , J M , Pavletić , L , Peñil , P , Perennes , C , Persic , M , Prada Moroni , P G , Prandini , E , Priyadarshi , C , Puljak , I , Rhode , W , Ribó , M , Rico , J , Righi , C , Rugliancich , A , Saha , L , Sahakyan , N , Saito , T , Sakurai , S , Satalecka , K , Saturni , F G , Schleicher , B , Schmidt , K , Schweizer , T , Sitarek , J , Šnidarić , I , Sobczynska , D , Spolon , A , Stamerra , A , Strom , D , Strzys , M , Suda , Y , Surić , T , Takahashi , M , Tavecchio , F , Temnikov , P , Terzić , T , Teshima , M , Torres-Albà , N , Tosti , L , Truzzi , S , Tutone , A , Van Scherpenberg , J , Vanzo , G , Vazquez Acosta , M , Ventura , S , Verguilov , V , Vigorito , C F , Vitale , V , Vovk , I , Will , M , Zarić , D , Angioni , R , D'Ammando , F , Ciprini , S , Cheung , C C , Orienti , M , Pacciani , L , Prajapati , P , Kumar , P , Ganesh , S , Minev , M , Kurtenkov , A , Marchini , A , Carrasco , L , Escobedo , G , Porras , A , Recillas , E , Lähteenmäki , A , Tornikoski , M , Berton , M , Tammi , J , Vera , R J C , Jorstad , S G , Marscher , A P , Weaver , Z R , Hart , M , Hallum , M K , Larionov , V M , Borman , G A , Grishina , T S , Kopatskaya , E N , Larionova , E G , Nikiforova , A A , Morozova , D A , Savchenko , S S , Troitskaya , Y V , Troitsky , I S , Vasilyev , A A , Hodges , M , Hovatta , T , Kiehlmann , S , Max-Moerbeck , W , Readhead , A C S , Reeves , R & Pearson , T J 2021 , ' VHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020 ' , Astronomy and Astrophysics , vol. 647 , 163 . https://doi.org/10.1051/0004-6361/202039687en
dc.identifier.doi10.1051/0004-6361/202039687en_US
dc.identifier.issn0004-6361
dc.identifier.issn1432-0746
dc.identifier.otherPURE UUID: 67b13bb3-d1e5-403b-a72e-bb8af8db3541en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/67b13bb3-d1e5-403b-a72e-bb8af8db3541en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85103516398&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/61833651/aa39687_20.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/106880
dc.identifier.urnURN:NBN:fi:aalto-202104206174
dc.language.isoenen
dc.publisherEDP SCIENCES
dc.relation.ispartofseriesAstronomy and Astrophysicsen
dc.relation.ispartofseriesVolume 647en
dc.rightsopenAccessen
dc.subject.keywordGalaxies: jetsen_US
dc.subject.keywordGamma rays: galaxiesen_US
dc.subject.keywordQuasars: individual: QSO B1420+326en_US
dc.subject.keywordRadiation mechanisms: non-thermalen_US
dc.titleVHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020en
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
Files