2024-03-29T08:29:56Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1794372020-12-13T09:27:57Zcom_10261_97com_10261_4col_10261_350
AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst
Vercellone, S.
Romano, P.
Piano, G.
Vittorini, V.
Donnarumma, I.
Munar-Adrover, P.
Raiteri, C.M.
Villata, M.
Verrecchia, F.
Lucarelli, F.
Pittori, C.
Bulgarelli, A.
Fioretti, V.
Tavani, M.
Acosta-Pulido, J.A.
Agudo, Iván
Arkharov, A.A.
Bach, U.
Bachev, R.
Borman, G.A.
Butuzova, M.S.
Carnerero, M.I.
Casadio, C.
Damljanovic, G.
D'Ammando, F.
Di Paola, A.
Doroshenko, V.T.
Efimova, N.V.
Ehgamberdiev, S.A.
Giroletti, M.
Gómez Fernández, J. L.
Grishina, T.S.
Järvelä, E.
Klimanov, S.A.
Kopatskaya, Evgenia N.
Kurtanidze, O.M.
Lähteenmäki, A.
Larionov, Valeri M.
Larionova, Liyudmila V.
Mihov, B.
Mirzaqulov, D.O.
Molina, Sol
Morozova, D.A.
Nazarov, S.V.
Orienti, M.
Righini, S.
Savchenko, S.S.
Semkov, E.
Slavcheva-Mihova, L.
Academy of Sciences Republic of Uzbekistan
Russian Science Foundation
Bulgarian Academy of Sciences
Agenzia Spaziale Italiana
Ministerio de Economía y Competitividad (España)
Ministry of Education, Science and Technological Development (Serbia)
Acceleration of particles
Relativistic processes
Radiation mechanisms: non-thermal
Quasars: Supermassive black holes
Quasars: Individual: 4C +71.07
Gamma rays: Galaxies
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. 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 photons cm s and F(E > 100 MeV)=(3.1 ± 0.6)×10 photons cm s, respectively, allowing us to investigate the properties of the jet and the emission region. 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. 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 erg s. 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. © ESO 2019.
2019-04-05T10:59:31Z
2019-04-05T10:59:31Z
2019
2019-04-05T10:59:31Z
artículo
Astronomy and Astrophysics 621:A82 (2019)
http://hdl.handle.net/10261/179437
10.1051/0004-6361/201732532
http://dx.doi.org/10.13039/501100002673
http://dx.doi.org/10.13039/501100003981
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100005995
http://dx.doi.org/10.13039/501100006769
eng
Publisher's version
Sí
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2016-80889-P
openAccess
EDP Sciences