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Multiwavelength Observations of the Blazar VER J0521+211 during an Elevated TeV Gamma-Ray State

Takahashi M; Puljak I; Molina E; Busetto G; Tosti L; Nievas-Rosillo M; Lorini A; Nakamori T; Hervet O; Blanch O; Kumar S; Inada T; Temnikov P; De Lotto B; Hanna D; Jin W; Otte AN; Righi C; Lindfors E; Schubert JL; Jouvin L; Otero-Santos J; Hrupec D; Spolon A; Fortson L; D'Elia V; Artero M; Benbow W; Menchiari S; Kobayashi Y; Ventura S; Rico J; Ragan K; Tavecchio F; Moreno V; Santander M; Maier G; Errando M; Verguilov V; Ohtani Y; Humensky TB; Prandini E; Lang MJ; Schleicher B; Garczarczyk M; Teshima M; Gasparyan S; Acciari VA; Saito T; Saturni FG; Wakely SP; Prester DD; Chilingarian A; Giglietto N; Gonzalez JB; Millis J; Holder J; Patel S; Arcaro C; Zaric D; VERITAS Collaboration (VERITAS Collaboration) ; MAGIC Collaboration (MAGIC Collaboration); Roache E; Lopez-Moya M; Vovk I; Nilsson K; Mirzoyan R; Schweizer T; Paoletti R; Baquero A; Oka T; Gliwny P; Antonelli LA; Priyadarshi C; Sembroski GH; Capasso M; Hadasch D; Herrera J; Buckley JH; Williamson TJ; van Scherpenberg J; Di Venere L; Del Popolo A; Noda K; Lopez-Coto R; Batkovic I; Vassiliev VV; Majumdar P; Da Vela P; Kerszberg D; Fraga BMD; Bernardini E; Wunderlich C; Di Pierro F; Wells RM; Farina L; Sadeh I; Giuri C; Iwamura Y; Cortina J; Satalecka K; Colombo E; Kushida J; Mannheim K; Heckmann L; Paredes JM; Green JG; Kleiner TK; Ramazani VF; Shang R; Hanlon WF; Moriarty P; Martinez IJ; Morcuende D; Ryan JL; Delgado J; Hassan T; Pavletic L; Rugliancich A; Cikota S; Krennrich F; Doro M; Fukami S; Berti A; Quinn J; Bhattacharyya W; Reynolds PT; Strzys M; Donini A; Dazzi F; Kubo H; Batista P; Ceribella G; Mender S; Acosta MV; Fruck C; Foote GM; Suda Y; Rhode W; Micanovic S; Mariotti M; Nozaki S; Hona B; Gallagher G; Barrio JA; Snidaric I; Linhoff L; Terzic T; Ishio K; Penil P; Kaaret P; Mukherjee R; Espineira ED; Tutone A; Prado RR; Sobczynska D; Kieda D; Bonnoli G; Mondal HA; Vitale V; Weinstein A; Hahn A; Hughes G; Miranda JM; Chai Y; Patel SR; Lopez RJG; Engels AA; Covino S; Sitarek J; Maneva G; Furniss A; Fukazawa Y; Moralejo A; Bednarek W; Dorner D; De Angelis A; Contreras JL; Ong RA; Rosillo MN; Green D; Ubach S; Aniello T; Stevenson B; Nigro C; Vigorito CF; Sahakyan N; Baack D; Lamastra A; Bokenkamp H; Vanzo G; Takeishi R; Jormanainen J; Kertzman M; Loporchio S; de Almeida UB; Palatiello M; Pfrang K; Feng Q; Manganaro M; Burelli I; Stamerra A; Paiano S; Pihet M; Babic A; Longo F; Elsaesser D; Font L; Strom D; Pohl M; Schmuckermaier F; Iotov R; Christiansen JL; Fattorini A; Yamamoto T; Truzzi S; Schmidt K; Persic M; Williams DA; Ribo M; Adams CB; Pueschel E; Maggio C; Godinovic N; Finley JP; Besenrieder J; Asano K; Nishijima K; Aguilar AM; Striskovic J; Leone F; Makariev M; Lundy M; Gent A; Nanci C; Ribeiro D; Lelas D; Tucci JV; Bosnjak Z; Viale I; Cerruti M; Martinez M; Moroni PGP; D'Amico G; Brill A; Nava L; Delfino M; Mazin D; Giordano F; Paneque D; Miener T; Neustroev V; Will M; Miceli D; Sakurai S; Bigongiari C; Depaoli D; Bernardos M; Suric T; Ansoldi S; Lopez-Oramas A; Mendez CD; Lombardi S; Brose R; Carosi R; Gaug M; Biland A; Hutten M

dc.contributor.authorTakahashi M
dc.contributor.authorPuljak I
dc.contributor.authorMolina E
dc.contributor.authorBusetto G
dc.contributor.authorTosti L
dc.contributor.authorNievas-Rosillo M
dc.contributor.authorLorini A
dc.contributor.authorNakamori T
dc.contributor.authorHervet O
dc.contributor.authorBlanch O
dc.contributor.authorKumar S
dc.contributor.authorInada T
dc.contributor.authorTemnikov P
dc.contributor.authorDe Lotto B
dc.contributor.authorHanna D
dc.contributor.authorJin W
dc.contributor.authorOtte AN
dc.contributor.authorRighi C
dc.contributor.authorLindfors E
dc.contributor.authorSchubert JL
dc.contributor.authorJouvin L
dc.contributor.authorOtero-Santos J
dc.contributor.authorHrupec D
dc.contributor.authorSpolon A
dc.contributor.authorFortson L
dc.contributor.authorD'Elia V
dc.contributor.authorArtero M
dc.contributor.authorBenbow W
dc.contributor.authorMenchiari S
dc.contributor.authorKobayashi Y
dc.contributor.authorVentura S
dc.contributor.authorRico J
dc.contributor.authorRagan K
dc.contributor.authorTavecchio F
dc.contributor.authorMoreno V
dc.contributor.authorSantander M
dc.contributor.authorMaier G
dc.contributor.authorErrando M
dc.contributor.authorVerguilov V
dc.contributor.authorOhtani Y
dc.contributor.authorHumensky TB
dc.contributor.authorPrandini E
dc.contributor.authorLang MJ
dc.contributor.authorSchleicher B
dc.contributor.authorGarczarczyk M
dc.contributor.authorTeshima M
dc.contributor.authorGasparyan S
dc.contributor.authorAcciari VA
dc.contributor.authorSaito T
dc.contributor.authorSaturni FG
dc.contributor.authorWakely SP
dc.contributor.authorPrester DD
dc.contributor.authorChilingarian A
dc.contributor.authorGiglietto N
dc.contributor.authorGonzalez JB
dc.contributor.authorMillis J
dc.contributor.authorHolder J
dc.contributor.authorPatel S
dc.contributor.authorArcaro C
dc.contributor.authorZaric D; VERITAS Collaboration (VERITAS Collaboration) ; MAGIC Collaboration (MAGIC Collaboration)
dc.contributor.authorRoache E
dc.contributor.authorLopez-Moya M
dc.contributor.authorVovk I
dc.contributor.authorNilsson K
dc.contributor.authorMirzoyan R
dc.contributor.authorSchweizer T
dc.contributor.authorPaoletti R
dc.contributor.authorBaquero A
dc.contributor.authorOka T
dc.contributor.authorGliwny P
dc.contributor.authorAntonelli LA
dc.contributor.authorPriyadarshi C
dc.contributor.authorSembroski GH
dc.contributor.authorCapasso M
dc.contributor.authorHadasch D
dc.contributor.authorHerrera J
dc.contributor.authorBuckley JH
dc.contributor.authorWilliamson TJ
dc.contributor.authorvan Scherpenberg J
dc.contributor.authorDi Venere L
dc.contributor.authorDel Popolo A
dc.contributor.authorNoda K
dc.contributor.authorLopez-Coto R
dc.contributor.authorBatkovic I
dc.contributor.authorVassiliev VV
dc.contributor.authorMajumdar P
dc.contributor.authorDa Vela P
dc.contributor.authorKerszberg D
dc.contributor.authorFraga BMD
dc.contributor.authorBernardini E
dc.contributor.authorWunderlich C
dc.contributor.authorDi Pierro F
dc.contributor.authorWells RM
dc.contributor.authorFarina L
dc.contributor.authorSadeh I
dc.contributor.authorGiuri C
dc.contributor.authorIwamura Y
dc.contributor.authorCortina J
dc.contributor.authorSatalecka K
dc.contributor.authorColombo E
dc.contributor.authorKushida J
dc.contributor.authorMannheim K
dc.contributor.authorHeckmann L
dc.contributor.authorParedes JM
dc.contributor.authorGreen JG
dc.contributor.authorKleiner TK
dc.contributor.authorRamazani VF
dc.contributor.authorShang R
dc.contributor.authorHanlon WF
dc.contributor.authorMoriarty P
dc.contributor.authorMartinez IJ
dc.contributor.authorMorcuende D
dc.contributor.authorRyan JL
dc.contributor.authorDelgado J
dc.contributor.authorHassan T
dc.contributor.authorPavletic L
dc.contributor.authorRugliancich A
dc.contributor.authorCikota S
dc.contributor.authorKrennrich F
dc.contributor.authorDoro M
dc.contributor.authorFukami S
dc.contributor.authorBerti A
dc.contributor.authorQuinn J
dc.contributor.authorBhattacharyya W
dc.contributor.authorReynolds PT
dc.contributor.authorStrzys M
dc.contributor.authorDonini A
dc.contributor.authorDazzi F
dc.contributor.authorKubo H
dc.contributor.authorBatista P
dc.contributor.authorCeribella G
dc.contributor.authorMender S
dc.contributor.authorAcosta MV
dc.contributor.authorFruck C
dc.contributor.authorFoote GM
dc.contributor.authorSuda Y
dc.contributor.authorRhode W
dc.contributor.authorMicanovic S
dc.contributor.authorMariotti M
dc.contributor.authorNozaki S
dc.contributor.authorHona B
dc.contributor.authorGallagher G
dc.contributor.authorBarrio JA
dc.contributor.authorSnidaric I
dc.contributor.authorLinhoff L
dc.contributor.authorTerzic T
dc.contributor.authorIshio K
dc.contributor.authorPenil P
dc.contributor.authorKaaret P
dc.contributor.authorMukherjee R
dc.contributor.authorEspineira ED
dc.contributor.authorTutone A
dc.contributor.authorPrado RR
dc.contributor.authorSobczynska D
dc.contributor.authorKieda D
dc.contributor.authorBonnoli G
dc.contributor.authorMondal HA
dc.contributor.authorVitale V
dc.contributor.authorWeinstein A
dc.contributor.authorHahn A
dc.contributor.authorHughes G
dc.contributor.authorMiranda JM
dc.contributor.authorChai Y
dc.contributor.authorPatel SR
dc.contributor.authorLopez RJG
dc.contributor.authorEngels AA
dc.contributor.authorCovino S
dc.contributor.authorSitarek J
dc.contributor.authorManeva G
dc.contributor.authorFurniss A
dc.contributor.authorFukazawa Y
dc.contributor.authorMoralejo A
dc.contributor.authorBednarek W
dc.contributor.authorDorner D
dc.contributor.authorDe Angelis A
dc.contributor.authorContreras JL
dc.contributor.authorOng RA
dc.contributor.authorRosillo MN
dc.contributor.authorGreen D
dc.contributor.authorUbach S
dc.contributor.authorAniello T
dc.contributor.authorStevenson B
dc.contributor.authorNigro C
dc.contributor.authorVigorito CF
dc.contributor.authorSahakyan N
dc.contributor.authorBaack D
dc.contributor.authorLamastra A
dc.contributor.authorBokenkamp H
dc.contributor.authorVanzo G
dc.contributor.authorTakeishi R
dc.contributor.authorJormanainen J
dc.contributor.authorKertzman M
dc.contributor.authorLoporchio S
dc.contributor.authorde Almeida UB
dc.contributor.authorPalatiello M
dc.contributor.authorPfrang K
dc.contributor.authorFeng Q
dc.contributor.authorManganaro M
dc.contributor.authorBurelli I
dc.contributor.authorStamerra A
dc.contributor.authorPaiano S
dc.contributor.authorPihet M
dc.contributor.authorBabic A
dc.contributor.authorLongo F
dc.contributor.authorElsaesser D
dc.contributor.authorFont L
dc.contributor.authorStrom D
dc.contributor.authorPohl M
dc.contributor.authorSchmuckermaier F
dc.contributor.authorIotov R
dc.contributor.authorChristiansen JL
dc.contributor.authorFattorini A
dc.contributor.authorYamamoto T
dc.contributor.authorTruzzi S
dc.contributor.authorSchmidt K
dc.contributor.authorPersic M
dc.contributor.authorWilliams DA
dc.contributor.authorRibo M
dc.contributor.authorAdams CB
dc.contributor.authorPueschel E
dc.contributor.authorMaggio C
dc.contributor.authorGodinovic N
dc.contributor.authorFinley JP
dc.contributor.authorBesenrieder J
dc.contributor.authorAsano K
dc.contributor.authorNishijima K
dc.contributor.authorAguilar AM
dc.contributor.authorStriskovic J
dc.contributor.authorLeone F
dc.contributor.authorMakariev M
dc.contributor.authorLundy M
dc.contributor.authorGent A
dc.contributor.authorNanci C
dc.contributor.authorRibeiro D
dc.contributor.authorLelas D
dc.contributor.authorTucci JV
dc.contributor.authorBosnjak Z
dc.contributor.authorViale I
dc.contributor.authorCerruti M
dc.contributor.authorMartinez M
dc.contributor.authorMoroni PGP
dc.contributor.authorD'Amico G
dc.contributor.authorBrill A
dc.contributor.authorNava L
dc.contributor.authorDelfino M
dc.contributor.authorMazin D
dc.contributor.authorGiordano F
dc.contributor.authorPaneque D
dc.contributor.authorMiener T
dc.contributor.authorNeustroev V
dc.contributor.authorWill M
dc.contributor.authorMiceli D
dc.contributor.authorSakurai S
dc.contributor.authorBigongiari C
dc.contributor.authorDepaoli D
dc.contributor.authorBernardos M
dc.contributor.authorSuric T
dc.contributor.authorAnsoldi S
dc.contributor.authorLopez-Oramas A
dc.contributor.authorMendez CD
dc.contributor.authorLombardi S
dc.contributor.authorBrose R
dc.contributor.authorCarosi R
dc.contributor.authorGaug M
dc.contributor.authorBiland A
dc.contributor.authorHutten M
dc.date.accessioned2022-10-27T11:57:01Z
dc.date.available2022-10-27T11:57:01Z
dc.identifier.urihttps://www.utupub.fi/handle/10024/156128
dc.description.abstractWe report on a long-lasting, elevated gamma-ray flux state from VER J0521+211 observed by VERITAS, MAGIC, and Fermi-LAT in 2013 and 2014. The peak integral flux above 200 GeV measured with the nightly binned light curve is (8.8 +/- 0.4) x 10(-7) photons m(-2) s(-1), or similar to 37% of the Crab Nebula flux. Multiwavelength observations from X-ray, UV, and optical instruments are also presented. A moderate correlation between the X-ray and TeV gamma-ray fluxes was observed, and the X-ray spectrum appeared harder when the flux was higher. Using the gamma-ray spectrum and four models of the extragalactic background light (EBL), a conservative 95% confidence upper limit on the redshift of the source was found to be z <= 0.31. Unlike the gamma-ray and X-ray bands, the optical flux did not increase significantly during the studied period compared to the archival low-state flux. The spectral variability from optical to X-ray bands suggests that the synchrotron peak of the spectral energy distribution (SED) may become broader during flaring states, which can be adequately described with a one-zone synchrotron self-Compton model varying the high-energy end of the underlying particle spectrum. The synchrotron peak frequency of the SED and the radio morphology of the jet from the MOJAVE program are consistent with the source being an intermediate-frequency-peaked BL Lac object.
dc.language.isoen
dc.publisherIOP Publishing Ltd
dc.titleMultiwavelength Observations of the Blazar VER J0521+211 during an Elevated TeV Gamma-Ray State
dc.identifier.urlhttps://iopscience.iop.org/article/10.3847/1538-4357/ac6dd9
dc.identifier.urnURN:NBN:fi-fe2022091258448
dc.relation.volume932
dc.contributor.organizationfi=Suomen ESO-keskus, yhteiset|en=Finnish Centre for Astronomy with ESO - FINCA|
dc.contributor.organization-code2609700
dc.converis.publication-id175934559
dc.converis.urlhttps://research.utu.fi/converis/portal/Publication/175934559
dc.identifier.jour-issn0004-637X
dc.okm.affiliatedauthorJormanainen, Jenni
dc.okm.affiliatedauthorFallah Ramazani, Vandad
dc.okm.affiliatedauthorNilsson, Kari
dc.okm.affiliatedauthorLindfors, Elina
dc.okm.discipline115 Avaruustieteet ja tähtitiedefi_FI
dc.okm.discipline115 Astronomy and space scienceen_GB
dc.okm.internationalcopublicationinternational co-publication
dc.okm.internationalityInternational publication
dc.okm.typeJournal article
dc.publisher.countryBritanniafi_FI
dc.publisher.countryUnited Kingdomen_GB
dc.publisher.country-codeGB
dc.relation.articlenumber129
dc.relation.doi10.3847/1538-4357/ac6dd9
dc.relation.ispartofjournalAstrophysical Journal
dc.relation.issue2
dc.year.issued2022


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