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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28803
Title: AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst
Authors: VERCELLONE, STEFANO 
ROMANO, Patrizia 
PIANO, Giovanni 
VITTORINI, VALERIO 
Donnarumma, I.
Munar-Adrover, P.
RAITERI, Claudia Maria 
VILLATA, Massimo 
VERRECCHIA, Francesco 
LUCARELLI, Fabrizio 
PITTORI, Carlotta 
BULGARELLI, ANDREA 
FIORETTI, VALENTINA 
TAVANI, MARCO 
Acosta-Pulido, J. A.
Agudo, I.
Arkharov, A. A.
Bach, U.
Bachev, R.
Borman, G. A.
Butuzova, M. S.
CARNERERO MARTIN, Maria Isabel 
Casadio, C.
Damljanovic, G.
D'AMMANDO, FILIPPO 
DI PAOLA, Andrea 
Doroshenko, V. T.
Efimova, N. V.
Ehgamberdiev, Sh. A.
GIROLETTI, MARCELLO 
Gómez, J. L.
Grishina, T. S.
Järvelä, E.
Klimanov, S. A.
Kopatskaya, E. N.
Kurtanidze, O. M.
Lähteenmäki, A.
Larionov, V. M.
Larionova, L. V.
Mihov, B.
Mirzaqulov, D. O.
Molina, S. N.
Morozova, D. A.
Nazarov, S. V.
ORIENTI, Monica 
RIGHINI, SIMONA 
Savchenko, S. S.
Semkov, E.
Slavcheva-Mihova, L.
Strigachev, A.
Tornikoski, M.
Troitskaya, Yu. V.
Vince, O.
Cattaneo, P. W.
Colafrancesco, S.
Longo, F.
Morselli, A.
Paoletti, F.
PARMIGGIANI, NICOLO 
Issue Date: 2019
Journal: ASTRONOMY & ASTROPHYSICS 
Number: 621
First Page: A82
Abstract: Context. The flat-spectrum radio quasar 4C +71.07 is a high-redshift (z = 2.172), γ-loud blazar whose optical emission is dominated by thermal radiation from the accretion disc. <BR /> Aims: 4C +71.07 has been detected in outburst twice by the AGILE γ-ray satellite during the period from the end of October to mid-November 2015, when it reached a γ-ray flux of the order of F(E > 100 MeV)=(1.2 ± 0.3)×10<SUP>-6</SUP> photons cm<SUP>-2</SUP> s<SUP>-1</SUP> and F(E > 100 MeV)=(3.1 ± 0.6)×10<SUP>-6</SUP> photons cm<SUP>-2</SUP> s<SUP>-1</SUP>, respectively, allowing us to investigate the properties of the jet and the emission region. <BR /> Methods: We investigated its spectral energy distribution by means of almost-simultaneous observations covering the cm, mm, near-infrared, optical, ultraviolet, X-ray, and γ-ray energy bands obtained by the GASP-WEBT Consortium and the Swift, AGILE, and Fermi satellites. <BR /> Results: The spectral energy distribution of the second γ-ray flare (whose energy coverage is more dense) can be modelled by means of a one-zone leptonic model, yielding a total jet power of about 4 × 10<SUP>47</SUP> erg s<SUP>-1</SUP>. <BR /> Conclusions: During the most prominent γ-ray flaring period our model is consistent with a dissipation region within the broad-line region. Moreover, this class of high-redshift, flat-spectrum radio quasars with high-mass black holes might be good targets for future γ-ray satellites such as e-ASTROGAM. <P />Partly based on data taken and assembled by the WEBT collaboration and stored in the WEBT archive at the Osservatorio Astrofisico di Torino - INAF (<A href="http://www.oato.inaf.it/blazars/webt">http://www.oato.inaf.it/blazars/webt</A>).
URI: http://hdl.handle.net/20.500.12386/28803
URL: https://www.aanda.org/articles/aa/abs/2019/01/aa32532-17/aa32532-17.html
ISSN: 0004-6361
DOI: 10.1051/0004-6361/201732532
Bibcode ADS: 2019A&A...621A..82V
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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