Research output: Contribution to journal › Article › peer-review
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, I.; 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, Sh. A.; Giroletti, M.; Gomez, J. L.; Grishina, T. S.; Jarvela, E.; Klimanov, S. A.; Kopatskaya, E. N.; Kurtanidze, O. M.; Lahteenmaki, A.; Larionov, V. M.; Larionova, L. V.; Mihov, B.; Mirzaqulov, D. O.; Molina, S. N.; Morozova, D. A.; Nazarov, S. V.; Orienti, M.; Righini, S.; 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, N.
In: ASTRONOMY & ASTROPHYSICS, Vol. 621, A82, 01.01.2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C+71.07 in outburst
AU - Vercellone, S.
AU - Romano, P.
AU - Piano, G.
AU - Vittorini, V.
AU - Donnarumma, I.
AU - Munar-Adrover, P.
AU - Raiteri, C. M.
AU - Villata, M.
AU - Verrecchia, F.
AU - Lucarelli, F.
AU - Pittori, C.
AU - Bulgarelli, A.
AU - Fioretti, V.
AU - Tavani, M.
AU - Acosta-Pulido, J. A.
AU - Agudo, I.
AU - Arkharov, A. A.
AU - Bach, U.
AU - Bachev, R.
AU - Borman, G. A.
AU - Butuzova, M. S.
AU - Carnerero, M. I.
AU - Casadio, C.
AU - Damljanovic, G.
AU - D'Ammando, F.
AU - Di Paola, A.
AU - Doroshenko, V. T.
AU - Efimova, N. V.
AU - Ehgamberdiev, Sh. A.
AU - Giroletti, M.
AU - Gomez, J. L.
AU - Grishina, T. S.
AU - Jarvela, E.
AU - Klimanov, S. A.
AU - Kopatskaya, E. N.
AU - Kurtanidze, O. M.
AU - Lahteenmaki, A.
AU - Larionov, V. M.
AU - Larionova, L. V.
AU - Mihov, B.
AU - Mirzaqulov, D. O.
AU - Molina, S. N.
AU - Morozova, D. A.
AU - Nazarov, S. V.
AU - Orienti, M.
AU - Righini, S.
AU - Savchenko, S. S.
AU - Semkov, E.
AU - Slavcheva-Mihova, L.
AU - Strigachev, A.
AU - Tornikoski, M.
AU - Troitskaya, Yu. V.
AU - Vince, O.
AU - Cattaneo, P. W.
AU - Colafrancesco, S.
AU - Longo, F.
AU - Morselli, A.
AU - Paoletti, F.
AU - Parmiggiani, N.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Context. The flat-spectrum radio quasar 4C +71.07 is a high-redshift (z = 2.172), gamma-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 gamma-ray satellite during the period from the end of October to mid-November 2015, when it reached a gamma-ray flux of the order of F(E > 100 MeV) = (1.2 +/- 0.3) x 10(-6) photons cm (2) s(-1) and F(E > 100 MeV) = (3.1 +/- 0.6) x 10(-6) photons cm(-2) s(-1), 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 gamma-ray energy bands obtained by the GASP-WEBT Consortium and the Swift, AGILE, and Fermi satellites.Results. The spectral energy distribution of the second gamma-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 x 10(47) erg s(-1).Conclusions. During the most prominent gamma-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 gamma-ray satellites such as e-ASTROGAM.
AB - Context. The flat-spectrum radio quasar 4C +71.07 is a high-redshift (z = 2.172), gamma-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 gamma-ray satellite during the period from the end of October to mid-November 2015, when it reached a gamma-ray flux of the order of F(E > 100 MeV) = (1.2 +/- 0.3) x 10(-6) photons cm (2) s(-1) and F(E > 100 MeV) = (3.1 +/- 0.6) x 10(-6) photons cm(-2) s(-1), 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 gamma-ray energy bands obtained by the GASP-WEBT Consortium and the Swift, AGILE, and Fermi satellites.Results. The spectral energy distribution of the second gamma-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 x 10(47) erg s(-1).Conclusions. During the most prominent gamma-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 gamma-ray satellites such as e-ASTROGAM.
KW - acceleration of particles
KW - radiation mechanisms: non-thermal
KW - relativistic processes
KW - quasars: supermassive black holes
KW - quasars: individual: 4C+71.07
KW - gamma rays: galaxies
KW - PHOTON IMAGING CAMERA
KW - GAMMA-RAY FLARE
KW - XMM-NEWTON
KW - FIELDS
KW - POWER
KW - Quasars: Supermassive black holes
KW - Quasars: Individual: 4C +71.07
KW - Relativistic processes
KW - Radiation mechanisms: non-thermal
KW - Gamma rays: Galaxies
KW - Acceleration of particles
UR - http://www.scopus.com/inward/record.url?scp=85060380182&partnerID=8YFLogxK
UR - https://www.aanda.org/10.1051/0004-6361/201732532
UR - http://www.mendeley.com/research/agile-ifermii-iswifti-gaspwebt-multiwavelength-observations-highredshift-blazar-4c-7107-outburst
U2 - 10.1051/0004-6361/201732532
DO - 10.1051/0004-6361/201732532
M3 - статья
VL - 621
JO - ASTRONOMY & ASTROPHYSICS
JF - ASTRONOMY & ASTROPHYSICS
SN - 0004-6361
M1 - A82
ER -
ID: 38058972