2019A&A...621A..82V

Query : 2019A&A...621A..82V

2019A&A...621A..82V - Astronomy and Astrophysics, volume 621A82-82 (2019/1-1)

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 S.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 Y.V., VINCE O., CATTANEO P.W., COLAFRANCESCO S., LONGO F., MORSELLI A., PAOLETTI F. and PARMIGGIANI N.

Abstract (from CDS):


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>100MeV)=(1.2±0.3)x10–6photons/cm2/s and F(E>100MeV)=(3.1±0.6)x10–6photons/cm2/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 4x1047erg/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.

Abstract Copyright: © ESO 2019

Journal keyword(s): acceleration of particles - radiation mechanisms: non-thermal - relativistic processes - quasars: supermassive black holes - quasars: individual: 4C +71.07 - gamma rays: galaxies

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 4C 71.07 Bla 08 41 24.36528508 +70 53 42.1730435     17.30 16.8   ~ 818 1
2 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
3 PKS J2158-3013 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1829 1
4 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1

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