THE 2012 FLARE OF PG 1553+113 SEEN WITH H.E.S.S. AND<i>FERMI</i>-LAT
A. AbramowskiUniversität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D-22761 Hamburg, GermanyF. AharonianMax-Planck-Institut für Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyF. Ait BenkhaliMax-Planck-Institut fr Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyA. G. AkhperjanianNational Academy of Sciences of the Republic of Armenia, Marshall Baghramian Avenue, 24, 0019 Yerevan, Republic of ArmeniaE. O. AngünerInstitut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, D-12489 Berlin, GermanyMichael Backes, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France;S. BalenderanUniversity of Durham, Department of Physics, South Road, Durham DH1 3LE, UKA. BalzerGRAPPA, Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The NetherlandsA. BarnackaObserwatorium Astronomiczne, Uniwersytet Jagielloski, ul. Orla 171, 30-244 Krakw, PolandY. BecheriniDepartment of Physics and Electrical Engineering, Linnaeus University, SE-351 95 Vxj, SwedenJ. Becker TjusInstitut fr Theoretische Physik, Lehrstuhl IV: Weltraum und Astrophysik, Ruhr-Universitt Bochum, D-44780 Bochum, GermanyD. BergeGRAPPA, Anton Pannekoek Institute for Astronomy and Institute of High-Energy Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The NetherlandsS. BernhardInstitut fr Astro-und Teilchenphysik, Leopold-Franzens-Universitt Innsbruck, A-6020 Innsbruck, AustriaK. BernlöhrInstitut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, D-12489 Berlin, GermanyE. Birsin, Universit Denis Diderot ParisJ. BiteauLaboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, FranceM. BöttcherCentre for Space Research, North-West University, Potchefstroom 2520, South AfricaC. BoissonLUTH, Observatoire de Paris, CNRS, Universit Paris Diderot, 5 Place Jules Janssen, F-92190 Meudon, FranceJ. BolmontLPNHE, Universit Pierre et Marie Curie ParisP. BordasInstitut fr Astronomie und Astrophysik, Universitt Tbingen, Sand 1, D-72076 Tbingen, GermanyJ. BregeonLaboratoire Univers et Particules de Montpellier, Universit Montpellier 2, CNRS/IN2P3, CC 72, Place Eugne Bataillon, F-34095 Montpellier Cedex 5, FranceF. BrunDSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France;P. BrunDSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, FranceM. BryanDSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France;T. BulikAstronomical Observatory, The University of Warsaw, Al. Ujazdowskie 4, 00-478 Warsaw, PolandS. CarriganMax-Planck-Institut fr Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyS. CasanovaInstytut Fizyki Jarowej PAN, ul. Radzikowskiego 152, 31-342 Krakw, PolandP. M. ChadwickUniversity of Durham, Department of Physics, South Road, Durham DH1 3LE, UKN. ChakrabortyMax-Planck-Institut fr Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyR. Chalmé-CalvetLPNHE, Universit Pierre et Marie Curie ParisR. C. G. ChavesLaboratoire Univers et Particules de Montpellier, Universit Montpellier 2, CNRS/IN2P3, CC 72, Place Eugne Bataillon, F-34095 Montpellier Cedex 5, FranceM. ChrétienLPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, FranceS. ColafrancescoSchool of Physics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg, 2050, South AfricaG. ColognaLandessternwarte, Universitt Heidelberg, Knigstuhl, D-69117 Heidelberg, GermanyJ. M. ConradOskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE-10691 Stockholm, SwedenC. CouturierLPNHE, Universit Pierre et Marie Curie ParisY. CuiInstitut fr Astronomie und Astrophysik, Universitt Tbingen, Sand 1, D-72076 Tbingen, GermanyM. DaltonUniversit Bordeaux 1, CNRS/IN2P3, Centre d'tudes Nuclaires de Bordeaux Gradignan, F-33175 Gradignan, FranceI. D. DavidsUniversity of Namibia, Department of Physics, Private Bag 13301, Windhoek, NamibiaB. DegrangeLaboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, FranceC. DeilMax-Planck-Institut fr Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyP. deWiltSchool of Chemistry & Physics, University of Adelaide, Adelaide 5005, AustraliaA. Djannati-Ataı̈APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, F-75205 Paris Cedex 13, FranceW. DomainkoMax-Planck-Institut fr Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyAxel DonathMax-Planck-Institut fr Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyL. O’C. DruryDublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, IrelandG. DubusCNRS, IPAG, F-38000 Grenoble, FranceK. DutsonDepartment of Physics and Astronomy, The University of Leicester, University Road, Leicester, LE1 7RH, UKJ. DyksNicolaus Copernicus Astronomical Center, ul. Bartycka 18, 00-716 Warsaw, PolandM. DyrdaInstytut Fizyki Jarowej PAN, ul. Radzikowskiego 152, 31-342 Krakw, PolandT. EdwardsMax-Planck-Institut fr Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyK. EgbertsInstitut fr Physik und Astronomie, Universitt Potsdam, Karl-Liebknecht-Strasse 24/25, D-14476 Potsdam, GermanyP. EgerMax-Planck-Institut fr Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyP. EspigatAPC, AstroParticule et Cosmologie, Universit Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cit, 10, rue Alice Domon et Lonie Duquet, F-75205 Paris Cedex 13, France;C. FarnierOskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE-10691 Stockholm, SwedenS. FeganLaboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, FranceF. FeinsteinLaboratoire Univers et Particules de MontpellierM. V. FernandesUniversität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D-22761 Hamburg, GermanyD. FernándezLaboratoire Univers et Particules de Montpellier, Université Montpellier 2, CNRS/IN2P3, CC 72, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, FranceA. FiaßonLaboratoire d'Annecy-le-Vieux de Physique des Particules, Universit de Savoie, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France;G. FontaineLaboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, FranceA. FörsterMax-Planck-Institut für Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyM. FüßlingInstitut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, D-14476 Potsdam, GermanyS. GabiciAPC, AstroParticule et Cosmologie, Universit Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cit, 10, rue Alice Domon et Lonie Duquet, F-75205 Paris Cedex 13, France;M. GajdusInstitut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, D-12489 Berlin, GermanyY. A. GallantLaboratoire Univers et Particules de Montpellier, Université Montpellier 2, CNRS/IN2P3, CC 72, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, FranceT. GarrigouxLPNHE, Universit Pierre et Marie Curie ParisG. GiavittoB. GiebelsÉcole PolytechniqueJ. F. GlicensteinDSM/Irfu, CEA Saclay, F-91191 Gif-Sur-Yvette Cedex, France;D. GottschallInstitut fr Astronomie und Astrophysik, Universitt Tbingen, Sand 1, D-72076 Tbingen, GermanyM.-H. GrondinLandessternwarte, Universitt Heidelberg, Knigstuhl, D-69117 Heidelberg, GermanyM. GrudzińskaAstronomical Observatory, The University of Warsaw, Al. Ujazdowskie 4, 00-478 Warsaw, PolandD. HadschInstitut fr Astro-und Teilchenphysik, Leopold-Franzens-Universitt Innsbruck, A-6020 Innsbruck, AustriaS. HäffnerUniversität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Str. 1, D-91058 Erlangen, GermanyJoachim HahnMax-Planck-Institut für Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyJ. HarrisUniversity of Durham, Department of Physics, South Road, Durham DH1 3LE, UKG. HeinzelmannUniversität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D-22761 Hamburg, GermanyG. HenriCNRS, IPAG, F-38000 Grenoble, FranceG. HermannMax-Planck-Institut für Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyO. HervetLUTH, Observatoire de Paris, CNRS, Universit Paris Diderot, 5 Place Jules Janssen, F-92190 Meudon, FranceAndreas HillertMax-Planck-Institut für Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyJ. A. HintonDepartment of Physics and Astronomy, The University of Leicester, University Road, Leicester, LE1 7RH, UKW. HofmannMax-Planck-Institut für Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyP. HofverbergMax-Planck-Institut für Kernphysik, P.O. Box 103980, D-69029 Heidelberg, GermanyM. HollerInstitut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, D-14476 Potsdam, GermanyD. HornsUniversität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D-22761 Hamburg, GermanyA. IvascenkoCentre for Space Research, North-West University, Potchefstroom 2520, South AfricaA. JachołkowskaLPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, FranceC. JahnUniversität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Str. 1, D-91058 Erlangen, GermanyM. JamrozyObserwatorium Astronomiczne, Uniwersytet Jagielloski, ul. Orla 171, 30-244 Krakw, PolandM. JaniakNicolaus Copernicus Astronomical Center, ul. Bartycka 18, 00-716 Warsaw, PolandF. JankowskyLandessternwarte, Universität Heidelberg, Königstuhl, D-69117 Heidelberg, GermanyI. JungUniversität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Str. 1, D-91058 Erlangen, GermanyM. A. KastendieckUniversität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, D-22761 Hamburg, GermanyK. KatarzyńskiCentre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, PolandU. KatzUniversität Erlangen-Nürnberg, Physikalisches Institut, Erwin-Rommel-Str. 1, D-91058 Erlangen, GermanyS. KaufmannLandessternwarte, Universität Heidelberg, Königstuhl, D-69117 Heidelberg, GermanyB. KhélifiAPC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon et Léonie Duquet, F-75205 Paris Cedex 13, FranceM. KiefferLPNHE, Université Pierre et Marie Curie Paris 6, Université Denis Diderot Paris 7, CNRS/IN2P3, 4 Place Jussieu, F-75252, Paris Cedex 5, France
2015en
ABI
Аннотация
Very high energy (VHE, E > 100 GeV) -ray flaring activity of the high-frequency peaked BL Lac object PG 1553 +113 has been detected by the H.E.S.S. telescopes. The flux of the source increased by a factor of 3 during the nights of 2012 April 26 and 27 with respect to the archival measurements with a hint of intra-night variability. No counterpart of this event has been detected in the Fermi-Large Area Telescope data. This pattern is consistent with VHE -ray flaring being caused by the injection of ultrarelativistic particles, emitting -rays at the highest energies. The dataset offers a unique opportunity to constrain the redshift of this source at z = 0.49 0.04 using a novel method based on Bayesian statistics. The indication of intra-night variability is used to introduce a novel method to probe for a possible Lorentz invariance violation (LIV), and to set limits on the energy scale at which Quantum Gravity (QG) effects causing LIV may arise. For the subluminal case, the derived limits are E QG,1 > 4.10 10 17 GeV and E QG,2 > 2.10 10 10 GeV for linear and quadratic LIV effects, respectively.
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