MAGIC observations and multifrequency properties of the flat spectrum radio quasar 3C 279 in 2011
| Autor: | Aleksić, J., Ansoldi, S., Berger, K., Orito, R., Overkemping, A., Paiano, S., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes-Fortuny, X., Partini, S., Persic, M., Bernardini, E., Prada, F., Prada Moroni, P. G., Prandini, E., Preziuso, S., Puljak, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Garcia, J. Rodriguez, Biland, A., Rügamer, S., Saggion, A., Saito, T., Saito, K., Salvati, M., Satalecka, K., Scalzotto, V., Scapin, V., Schultz, C., Schweizer, T., Blanch, O., Shore, S. N., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Spanier, F., Stamatescu, V., Stamerra, A., Steinbring, T., Storz, J., Bock, R. K., Sun, S., Surić, T., Takalo, L., Takami, H., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thaele, J., Bonnefoy, S., Tibolla, O., Torres, D. F., Toyama, T., Treves, A., Vogler, P., Wagner, R. M., Zandanel, F., Zanin, R., Berdyugin, A., Vornanen, T., Bonnoli, G., Lähteenmäki, A., Tammi, J., Tornikoski, M., Hovatta, T., Max-Moerbeck, W., Readhead, A., Richards, J., Hayashida, M., Sanchez, D. A., Fermi-LAT, on behalf of the, Borracci, F., Marscher, A., Jorstad, S., MAGIC Collaboration, KVA Telescope Collaboration, Metsähovi Radio Observatory Collaboration, Owens Valley Radio Observatory Collaboration, Fermi-LAT Collaboration, Bretz, T., Carmona, E., Antonelli, L. A., Carosi, A., Fidalgo, D. Carreto, Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., De Angelis, A., Antoranz, P., De Caneva, G., De Lotto, B., Delgado Mendez, C., Doert, M., Domínguez, A., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Eisenacher, D., Babic, A., Elsaesser, D., Farina, E., Ferenc, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., López, R. J. García, Garczarczyk, M., Garrido Terrats, D., Bangale, P., Gaug, M., Giavitto, G., Godinović, N., González Muñoz, A., Gozzini, S. R., Hadasch, D., Herrero, A., Hildebrand, D., Hose, J., Hrupec, D., Barres de Almeida, U., Idec, W., Kadenius, V., Kellermann, H., Knoetig, M. L., Kodani, K., Konno, Y., Krause, J., Kubo, H., Kushida, J., La Barbera, A., Barrio, J. A., Lelas, D., Lewandowska, N., Lindfors, E., Lombardi, S., López, M., López-Coto, R., López-Oramas, A., Lorenz, E., Lozano, I., Makariev, M., Becerra González, J., Mallot, K., Maneva, G., Mankuzhiyil, N., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Bednarek, W., Meucci, M., Miranda, J. M., Mirzoyan, R., Moralejo, A., Munar-Adrover, P., Nakajima, D., Niedzwiecki, A., Nilsson, K., Nishijima, K., Nowak, N. |
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| Přispěvatelé: | Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Metsähovi Radio Observatory, Department of Electronics and Nanoengineering, Aalto-yliopisto, Aalto University, Universitat de Barcelona, Laboratoire d'Annecy de Physique des Particules ( LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Savoie Mont Blanc ( USMB [Université de Savoie] [Université de Chambéry] ) -Centre National de la Recherche Scientifique ( CNRS ) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Radiation mechanisms: non-thermal
Infrared jets [galaxies] Astrophysics law.invention Raigs gamma law Jets (Astrofísica) Polarization individual: 3C 279 [quasars] MAGIC (telescope) Radio astronomy gamma rays: galaxies galaxies: active galaxies: quasars: individual (3C 279) galaxies: jets radiation mechanisms: non-thermal relativistic processes Quasars: individual: 3C 279 Physics astro-ph.HE High Energy Astrophysical Phenomena (astro-ph.HE) 213 Electronic automation and communications engineering electronics [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE] Relativistic processes Gamma ray Galaxies: active non-thermal [radiation mechanisms] Quasars: individual Galaxies: jets Gamma rays: galaxies Extragalactic background light active [galaxies] galaxies [gamma rays] Electrónica Física nuclear Absorption spectroscopy Gamma rays Polarization Radio astronomy Stereo image processing Galaxies : active Galaxies:jets Gamma rays: galaxies Quasars: individual Radiation mechanisms: nonthermal Galaxies Electricidad Astrophysics - High Energy Astrophysical Phenomena astro-ph.GA Astrophysics::High Energy Astrophysical Phenomena education FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics Radio telescope Telescope Absorption spectroscopy quasar Radiation mechanisms: nonthermal Stereo image processing Quasars Quàsars Galaxies : active Galaxies:jets Gamma rays Quasar Astronomy and Astrophysics Position angle MAGIC Astrophysics - Astrophysics of Galaxies Galàxies Astrophysical jets Space and Planetary Science 115 Astronomy and space science Astrophysics of Galaxies (astro-ph.GA) Galàxies actives Active galaxies spectral ddc:520 [ SDU.ASTR.HE ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE] |
| Zdroj: | Astronomy and Astrophysics-A&A Astronomy and Astrophysics-A&A, EDP Sciences, 2014, 567, pp.A41. ⟨10.1051/0004-6361/201323036⟩ A&A E-Prints Complutense: Archivo Institucional de la UCM Universidad Complutense de Madrid Astronomy and astrophysics 567, A41 (2014). doi:10.1051/0004-6361/201323036 Astronomy and Astrophysics-A&A, EDP Sciences, 2014, 567, pp.A41. 〈10.1051/0004-6361/201323036〉 Aaltodoc Publication Archive E-Prints Complutense DESY Publication Database SNSF P3 Database Hyper Article en Ligne Diposit Digital de la Universitat de Barcelona Open Access Repository Research Repository of Catalonia Caltech Authors INRIA a CCSD electronic archive server arXiv.org e-Print Archive E-Prints Complutense. Archivo Institucional de la UCM instname Recercat. Dipósit de la Recerca de Catalunya Astronomy and Astrophysics Dipòsit Digital de la UB Universidad de Barcelona |
| ISSN: | 0004-6361 |
| DOI: | 10.1051/0004-6361/201323036⟩ |
| Popis: | We study the multifrequency emission and spectral properties of the quasar 3C 279. We observed 3C 279 in very high energy (VHE, E>100GeV) gamma rays, with the MAGIC telescopes during 2011, for the first time in stereoscopic mode. We combine these measurements with observations at other energy bands: in high energy (HE, E>100MeV) gamma rays from Fermi-LAT, in X-rays from RXTE, in the optical from the KVA telescope and in the radio at 43GHz, 37GHz and 15GHz from the VLBA, Mets��hovi and OVRO radio telescopes and optical polarisation measurements from the KVA and Liverpool telescopes. During the MAGIC observations (February to April 2011) 3C 279 was in a low state in optical, X-ray and gamma rays. The MAGIC observations did not yield a significant detection. These upper limits are in agreement with the extrapolation of the HE gamma-ray spectrum, corrected for extragalactic background light absorption, from Fermi-LAT. The second part of the MAGIC observations in 2011 was triggered by a high activity state in the optical and gamma-ray bands. During the optical outburst the optical electric vector position angle rotatated of about 180 degrees. There was no simultaneous rotation of the 43GHz radio polarisation angle. No VHE gamma rays were detected by MAGIC, and the derived upper limits suggest the presence of a spectral break or curvature between the Fermi-LAT and MAGIC bands. The combined upper limits are the strongest derived to date for the source at VHE and below the level of the previously detected flux by a factor 2. Radiation models that include synchrotron and inverse Compton emissions match the optical to gamma-ray data, assuming an emission component inside the broad line region (BLR) responsible for the high-energy emission and one outside the BLR and the infrared torus causing optical and low-energy emission. We interpreted the optical polarisation with a bent trajectory model. 15 pages, 11 figures, 5 tables; A&A in press |
| Databáze: | OpenAIRE |
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