AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst

S. Vercellone; P. Romano; G. Piano; V. Vittorini; I. Donnarumma; P. Munar-Adrover; C. M. Raiteri; M. Villata; F. Verrecchia; F. Lucarelli; C. Pittori; A. Bulgarelli; V. Fioretti; M. Tavani; J. A. Acosta-Pulido; I. Agudo; A. A. Arkharov; U. Bach; R. Bachev; G. A. Borman; M. S. Butuzova; M. I. Carnerero; C. Casadio; G. Damljanovic; F. D'Ammando; A. Di Paola; V. T. Doroshenko; N. V. Efimova; S. A. Ehgamberdiev; M. Giroletti; J. L. Gómez; T. S. Grishina; E. Järvelä; S. A. Klimanov; E. N. Kopatskaya; O. M. Kurtanidze; A. Lähteenmäki; V. M. Larionov; L. V. Larionova; B. Mihov; D. O. Mirzaqulov; S. N. Molina; D. A. Morozova; S. V. Nazarov; M. Orienti; S. Righini; S. S. Savchenko; E. Semkov; L. Slavcheva-Mihova; A. Strigachev; M. Tornikoski; Y. V. Troitskaya; O. Vince; P. W. Cattaneo; S. Colafrancesco; F. Longo; A. Morselli; F. Paoletti; N. Parmiggiani

doi:10.1051/0004-6361/201732532

AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst

S. Vercellone^*, P. Romano, G. Piano, V. Vittorini, I. Donnarumma, P. Munar-Adrover, C. M. Raiteri, M. Villata, F. Verrecchia, F. Lucarelli, C. Pittori, A. Bulgarelli, V. Fioretti, M. Tavani, J. A. Acosta-Pulido, I. Agudo, A. A. Arkharov, U. Bach, R. Bachev, G. A. BormanM. S. Butuzova, M. I. Carnerero, C. Casadio, G. Damljanovic, F. D'Ammando, A. Di Paola, V. T. Doroshenko, N. V. Efimova, S. A. Ehgamberdiev, M. Giroletti, J. L. Gómez, T. S. Grishina, E. Järvelä, S. A. Klimanov, E. N. Kopatskaya, O. M. Kurtanidze, A. Lähteenmäki, V. M. Larionov, L. V. Larionova, B. Mihov, D. O. Mirzaqulov, S. N. Molina, D. A. Morozova, S. V. Nazarov, M. Orienti, S. Righini, S. S. Savchenko, E. Semkov, L. Slavcheva-Mihova, A. Strigachev, M. Tornikoski, Y. V. Troitskaya, O. Vince, P. W. Cattaneo, S. Colafrancesco, F. Longo, A. Morselli, F. Paoletti, N. Parmiggiani

^*Corresponding author for this work

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Abstract

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.

Original language	English
Article number	82
Number of pages	8
Journal	Astronomy and Astrophysics
Volume	621
DOIs	https://doi.org/10.1051/0004-6361/201732532
Publication status	Published - 11 Jan 2019
MoE publication type	A1 Journal article-refereed

Keywords

Acceleration of particles
Gamma rays: Galaxies
Quasars: Individual: 4C +71.07
Quasars: Supermassive black holes
Radiation mechanisms: non-thermal
Relativistic processes

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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., ... Parmiggiani, N. (2019). AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst. Astronomy and Astrophysics, 621, [82]. https://doi.org/10.1051/0004-6361/201732532

@article{83ce99d3c46940bca1497ca0c156bd18,

title = "AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst",

abstract = "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.",

keywords = "Acceleration of particles, Gamma rays: Galaxies, Quasars: Individual: 4C +71.07, Quasars: Supermassive black holes, Radiation mechanisms: non-thermal, Relativistic processes",

author = "S. Vercellone and P. Romano and G. Piano and V. Vittorini and I. Donnarumma and P. Munar-Adrover and Raiteri, {C. M.} and M. Villata and F. Verrecchia and F. Lucarelli and C. Pittori and A. Bulgarelli and V. Fioretti and M. Tavani and Acosta-Pulido, {J. A.} and I. Agudo and Arkharov, {A. A.} and U. Bach and R. Bachev and Borman, {G. A.} and Butuzova, {M. S.} and Carnerero, {M. I.} and C. Casadio and G. Damljanovic and F. D'Ammando and {Di Paola}, A. and Doroshenko, {V. T.} and Efimova, {N. V.} and Ehgamberdiev, {S. A.} and M. Giroletti and G{\'o}mez, {J. L.} and Grishina, {T. S.} and E. J{\"a}rvel{\"a} and Klimanov, {S. A.} and Kopatskaya, {E. N.} and Kurtanidze, {O. M.} and A. L{\"a}hteenm{\"a}ki and Larionov, {V. M.} and Larionova, {L. V.} and B. Mihov and Mirzaqulov, {D. O.} and Molina, {S. N.} and Morozova, {D. A.} and Nazarov, {S. V.} and M. Orienti and S. Righini and Savchenko, {S. S.} and E. Semkov and L. Slavcheva-Mihova and A. Strigachev and M. Tornikoski and Troitskaya, {Y. V.} and O. Vince and Cattaneo, {P. W.} and S. Colafrancesco and F. Longo and A. Morselli and F. Paoletti and N. Parmiggiani",

year = "2019",

month = jan,

day = "11",

doi = "10.1051/0004-6361/201732532",

language = "English",

volume = "621",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP SCIENCES",

}

Vercellone, S, Romano, P, Piano, G, Vittorini, V, Donnarumma, I, Munar-Adrover, P, Raiteri, CM, Villata, M, Verrecchia, F, Lucarelli, F, Pittori, C, Bulgarelli, A, Fioretti, V, Tavani, M, Acosta-Pulido, JA, Agudo, I, Arkharov, AA, Bach, U, Bachev, R, Borman, GA, Butuzova, MS, Carnerero, MI, Casadio, C, Damljanovic, G, D'Ammando, F, Di Paola, A, Doroshenko, VT, Efimova, NV, Ehgamberdiev, SA, Giroletti, M, Gómez, JL, Grishina, TS, Järvelä, E, Klimanov, SA, Kopatskaya, EN, Kurtanidze, OM, Lähteenmäki, A, Larionov, VM, Larionova, LV, Mihov, B, Mirzaqulov, DO, Molina, SN, Morozova, DA, Nazarov, SV, Orienti, M, Righini, S, Savchenko, SS, Semkov, E, Slavcheva-Mihova, L, Strigachev, A, Tornikoski, M, Troitskaya, YV, Vince, O, Cattaneo, PW, Colafrancesco, S, Longo, F, Morselli, A, Paoletti, F & Parmiggiani, N 2019, 'AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst', Astronomy and Astrophysics, vol. 621, 82. https://doi.org/10.1051/0004-6361/201732532

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, S. A.

AU - Giroletti, M.

AU - Gómez, J. L.

AU - Grishina, T. S.

AU - Järvelä, E.

AU - Klimanov, S. A.

AU - Kopatskaya, E. N.

AU - Kurtanidze, O. M.

AU - Lähteenmäki, 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, Y. V.

AU - Vince, O.

AU - Cattaneo, P. W.

AU - Colafrancesco, S.

AU - Longo, F.

AU - Morselli, A.

AU - Paoletti, F.

AU - Parmiggiani, N.

PY - 2019/1/11

Y1 - 2019/1/11

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 - Gamma rays: Galaxies

KW - Quasars: Individual: 4C +71.07

KW - Quasars: Supermassive black holes

KW - Radiation mechanisms: non-thermal

KW - Relativistic processes

UR - http://www.scopus.com/inward/record.url?scp=85060380182&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201732532

DO - 10.1051/0004-6361/201732532

M3 - Article

AN - SCOPUS:85060380182

VL - 621

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

M1 - 82

ER -

AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst

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AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst

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