J/MNRAS/496/3912ivo://CDS.VizieR/J/MNRAS/496/3912doi:10.26093/cds/vizier.74963912CDSMAGIC CollaborationAcciari V.A.Ansoldi S.Antonelli L.A.,Arbet Engels A.Babic A.Banerjee B.Barres de Almeida U.Barrio J.A.,Becerra Gonzalez J.Bednarek W.Bellizzi L.Bernardini E.Berti A.,Besenrieder J.Bhattacharyya W.Bigongiari C.Blanch O.Bonnoli G.,Bosnjak Z.Busetto G.Carosi R.Ceribella G.Cerruti M.Chai Y.,Chilingaryan A.Cikota S.Colak S.M.Colin U.Colombo E.,Contreras J.L.Cortina J.Covino S.D'Elia V.Da Vela P.Dazzi F.,De Angelis A.De Lotto B.Delno M.Delgado J.Depaoli D.Di Pierro F.,Di Venere L.Do Souto Espi~neira E.Dominis Prester D.Donini A.,Doro M.Elsaessery D.Fallah Ramazani V.Fattorini A.Ferrara G.,Foano L.Fonseca M.V.Font L.Fruck C.Fukami S.Garca Lopez R.J.,Garczarczyk M.Gasparyan S.Gaug M.Giglietto N.Giordano F.,Godinovic N.Gliwny P.Green D.Hadasch D.Hahn A.Herrera J.,Hoang J.Hrupec D.Huetten M.Inada T.Inoue S.Ishio K.Iwamura Y.,Jouvin L.Kajiwara Y.Kerszberg D.Kobayashi Y.Kubo H.Kushida J.,Lamastra A.Lelas D.Leone F.Lindfors E.Lombardi S.Longo F.,Lopez M.Lopez-Coto R.Lopez-Oramas A.Loporchio S.,Machado de Oliveira Fraga B.Maggio C.Majumdar P.Makariev M.,Mallamaci M.Maneva G.Manganaro M.Maraschi L.Mariotti M.Martnez M.,Mazin D.Mender S.Micanovic S.Miceli D.Miener T.Minev M.,Miranda J.M.Mirzoyan R.Molina E.Moralejo A.Morcuende D.Moreno V.,Moretti E.Munar-Adrover P.Neustroev V.Nigro C.Nilsson K.Ninci D.,Nishijima K.Noda K.Nogues L.Nozaki S.Ohtani Y.Oka T.,Otero-Santos J.Palatiello M.Paneque D.Paoletti R.Paredes J.M.,Pavletic L.Pe~nil P.Peresano M.Persic M.Prada Moroni P.G.,Prandini E.Puljak I.Ribo M.Rico J.Righi C.Rugliancich A.Saha L.,Sahakyan N.Saito T.Sakurai S.Satalecka K.Schleicher B.Schmidt K.,Schweizer T.Sitarek J.Snidaric I.Sobczynska D.Spolon A.,Stamerra A.Strom D.Strzys M.Suda Y.Suric T.Takahashi M.,Tavecchio F.Temnikov P.Terzic T.Teshima M.Torres-Alba N.Tosti L.,van Scherpenberg J.Vanzo G.Vazquez Acosta M.Ventura S.Verguilov V.,Vigorito C.F.Vitale V.Vovk I.Will M.Zaric D.,FACT CollaborationBaackz D.Balbo M.Beck M.Biederbeck N.Bilandz A.,Blank M.Bretz T.Bruegge K.Bulinski M.Buss J.Doerr M.Dorner D.,Hildebrand D.Iotov R.Klinger M.Mannheimz K.Achim Mueller S.,Neise D.Neronov A.Noethe M.Paravac A.Rhodez W.Schleicher B.,Sedlaczek K.Shukla A.Sliusar V.Tani L.Theissen F.Walter R.,MWL Collaborators: Acosta Pulido J.Filippenko A.V.Hovatta T.,Kiehlmann S.Larionov V.M.Max-Moerbeck W.Raiteri C.M.Readhead A.C.S.,Segon M.Villata M.Zheng W.2024-08-21T20:15:29Z2020-12-17T13:45:24ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frbl-lacertae-objectsspectral-energy-distributionExtreme High-frequency BL Lacs (EHBL) feature their synchrotron peak of the broadband spectral energy distribution (SED) at {nu}_s_>=10^17^Hz. The BL Lac object 1ES 2344+514 was included in the EHBL family because of its impressive shift of the synchrotron peak in 1996. During the following years, the source appeared to be in a low state without showing any extreme behaviours. In August 2016, 1ES 2344+514 was detected with the ground-based {gamma}-ray telescope FACT during a high {gamma}-ray state, triggering multi-wavelength (MWL) observations. We studied the MWL light curves of 1ES 2344+514 during the 2016 flaring state, using data from radio to VHE {gamma} rays taken with OVRO, KAIT, KVA, NOT, some telescopes of the GASP-WEBT collaboration at the Teide, Crimean, and St. Petersburg observatories, Swift-UVOT, Swift-XRT, Fermi-LAT, FACT and MAGIC. With simultaneous observations of the flare, we built the broadband SED and studied it in the framework of a leptonic and an hadronic model. The VHE {gamma}-ray observations show a flux level of 55% of the Crab Nebula flux above 300GeV, similar to the historical maximum of 1995. The combination of MAGIC and Fermi-LAT spectra provides an unprecedented characterization of the inverse-Compton peak for this object during a flaring episode. The {GAMMA} index of the intrinsic spectrum in the VHE {gamma}-ray band is 2.04+/-0.12stat+/-0.15sys. We find the source in an extreme state with a shift of the position of the synchrotron peak to frequencies above or equal to 10^18^Hz2020MNRAS.496.3912Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/496/3912CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/549/A23 : MAGIC map of 1E 2259+586 (Aleksic+, 2013)J/A+A/565/L12 : Crab pulsar 50-400GeV light curve (Aleksic+, 2014)J/A+A/573/A50 : 2008 multiwavelength observations of Mrk 501 (Aleksic+, 2015)J/A+A/578/A22 : Mrk421 in March 2010 (Aleksic+, 2015)J/A+A/576/A126 : 2009 multiwavelength campaign on Mrk421 (Aleksic+, 2015)J/A+A/619/A45 : S5 0716+714 multi-wavelength curves (MAGIC Coll., 2018)J/ApJS/247/16 : Extreme high-frequency-peaked BL Lac objects (Acciari+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/496/3912https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/496/3912http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/496/3912https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/496/3912https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/496/3912http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/496/3912GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/MNRAS/496/3912/table3Parameters of the power-law fit to the VHE {gamma}-ray spectra observed by MAGIC (this work)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateMJD date (57611 or 57612) or combinedtime.epochcharNoteobserved or intrinsicmeta.notecharf0Normalization constantcm**-2.s**-1.TeV**-1stat.fit.paramdoublee_f0Statistical error on f0cm**-2.s**-1.TeV**-1stat.errordoubles_f0Systematic error on f0cm**-2.s**-1.TeV**-1stat.error.sysdoubleGAMMASpectral indexspect.indexfloate_GAMMAStatistical error on GAMMAstat.errorfloats_GAMMASystematic error on GAMMAstat.error.sysfloatchi2{chi}^2^ valuestat.valuefloatDOFDegree of freedomstat.fit.dofintProbProbability%statfloatJ/MNRAS/496/3912/fig1Multi-wavelength light curve of 1ES 2344+514 from MJD 57567 (28 June 2016) to MJD 57645 (14 September 2016)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstInstrument (1)meta.id;instrcharMJDObservation datedtime.epochdoublee_MJD? rms uncertainty on MJDdstat.error;time.epochdoublenullableFluxFlux in instrument bandcm**-2.s**-1phot.fluxdoublee_Fluxrms uncertainty on Fluxcm**-2.s**-1stat.error;phot.fluxdoubleJ/MNRAS/496/3912/fig5Observed and intrinsic spectraEEnergyGeVphys.energydoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTitleTitle for the following data (1)meta.titlecharDateMJD date (57611 or 57612) or combinedtime.epochcharEminLower value of EnergyGeVphys.energy;stat.mindoubleEmaxUpper value of EnergyGeVphys.energy;stat.maxdoubledN/dESpectrumTeV**-1.cm**-2.s**-1phot.flux.density;arith.ratiodoublee_dN/dErms uncertainty on spectrumTeV**-1.cm**-2.s**-1stat.errordoubleJ/MNRAS/496/3912/fig6-7Broadband SED pointsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstInstrument (1)meta.id;instrcharnuFrequencyHzem.freqdoublenuFnuFlux densitymW.m**-2phot.flux.density;em.radiodoublee_nuError on nu, lower valueHzstat.errordoubleE_nuError on nu, upper valueHzstat.error;stat.maxdoublee_nuFnurms uncertainty on nuFnumW.m**-2stat.errordouble