GAMMA-RAY BLAZARS NEAR EQUIPARTITION AND THE ORIGIN OF THE GeV SPECTRAL BREAK IN 3C 454.3

被引：58
作者：
Cerruti, Matteo [1 ,2 ]
Dermer, Charles D. [3 ]
Lott, Benoit [4 ]
Boisson, Catherine [2 ]
Zech, Andreas [2 ]
机构：
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[2] Univ Paris Diderot, CNRS, LUTII, Observ Paris, F-92190 Meudon, France
[3] US Naval Res Lab, Div Space Sci, Washington, DC 20375 USA
[4] Univ Bordeaux, CENBG, IN2P3, CNRS,UMR 7595, F-33175 Gradignan, France
来源：
ASTROPHYSICAL JOURNAL LETTERS | 2013年 / 771卷 / 01期
关键词：
galaxies: active; galaxies: individual: 3C454.3; gamma rays: general; radiation mechanisms: non-thermal; ACTIVE GALACTIC NUCLEI; LARGE-AREA TELESCOPE; MULTIWAVELENGTH OBSERVATIONS; RADIO QUASARS; AGILE DETECTION; 2010; NOVEMBER; 3C-454.3; OUTBURST; EMISSION; CAMPAIGN;
D O I：
10.1088/2041-8205/771/1/L4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Observations performed with the Fermi-LAT telescope have revealed the presence of a spectral break in the GeV spectrum of flat-spectrum radio quasars (FSRQs) and other low-and intermediate-synchrotron peaked blazars. We propose that this feature can be explained by Compton scattering of broad-line region photons by a non-thermal population of electrons described by a log-parabolic function. We consider in particular a scenario in which the energy densities of particles, magnetic field, and soft photons in the emitting region are close to equipartition. We show that this model can satisfactorily account for the overall spectral energy distribution of the FSRQ 3C 454.3, reproducing the GeV spectral cutoff due to Klein-Nishina effects and a curving electron distribution.
引用
收藏
页数：5
相关论文
共 37 条
  • [1] THE SPECTRAL ENERGY DISTRIBUTION OF FERMI BRIGHT BLAZARS
    Abdo, A. A.
    Ackermann, M.
    Agudo, I.
    Ajello, M.
    Aller, H. D.
    Aller, M. F.
    Angelakis, E.
    Arkharov, A. A.
    Axelsson, M.
    Bach, U.
    Baldini, L.
    Ballet, J.
    Barbiellini, G.
    Bastieri, D.
    Baughman, B. M.
    Bechtol, K.
    Bellazzini, R.
    Benitez, E.
    Berdyugin, A.
    Berenji, B.
    Blandford, R. D.
    Bloom, E. D.
    Boettcher, M.
    Bonamente, E.
    Borgland, A. W.
    Bregeon, J.
    Brez, A.
    Brigida, M.
    Bruel, P.
    Burnett, T. H.
    Burrows, D.
    Buson, S.
    Caliandro, G. A.
    Calzoletti, L.
    Cameron, R. A.
    Capalbi, M.
    Caraveo, P. A.
    Carosati, D.
    Casandjian, J. M.
    Cavazzuti, E.
    Cecchi, C.
    Celik, Oe.
    Charles, E.
    Chaty, S.
    Chekhtman, A.
    Chen, W. P.
    Chiang, J.
    Chincarini, G.
    Ciprini, S.
    Claus, R.
    [J]. ASTROPHYSICAL JOURNAL, 2010, 716 (01) : 30 - 70
  • [2] THE FIRST CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE
    Abdo, A. A.
    Ackermann, M.
    Ajello, M.
    Allafort, A.
    Antolini, E.
    Atwood, W. B.
    Axelsson, M.
    Baldini, L.
    Ballet, J.
    Barbiellini, G.
    Bastieri, D.
    Baughman, B. M.
    Bechtol, K.
    Bellazzini, R.
    Berenji, B.
    Blandford, R. D.
    Bloom, E. D.
    Bogart, J. R.
    Bonamente, E.
    Borgland, A. W.
    Bouvier, A.
    Bregeon, J.
    Brez, A.
    Brigida, M.
    Bruel, P.
    Buehler, R.
    Burnett, T. H.
    Buson, S.
    Caliandro, G. A.
    Cameron, R. A.
    Cannon, A.
    Caraveo, P. A.
    Carrigan, S.
    Casandjian, J. M.
    Cavazzuti, E.
    Cecchi, C.
    Celik, Oe.
    Celotti, A.
    Charles, E.
    Chekhtman, A.
    Chen, A. W.
    Cheung, C. C.
    Chiang, J.
    Ciprini, S.
    Claus, R.
    Cohen-Tanugi, J.
    Conrad, J.
    Costamante, L.
    Cotter, G.
    Cutini, S.
    [J]. ASTROPHYSICAL JOURNAL, 2010, 715 (01) : 429 - 457
  • [3] FERMI GAMMA-RAY SPACE TELESCOPE OBSERVATIONS OF GAMMA-RAY OUTBURSTS FROM 3C 454.3 IN 2009 DECEMBER AND 2010 APRIL
    Ackermann, M.
    Ajello, M.
    Baldini, L.
    Ballet, J.
    Barbiellini, G.
    Bastieri, D.
    Bechtol, K.
    Bellazzini, R.
    Berenji, B.
    Blandford, R. D.
    Bonamente, E.
    Borgland, A. W.
    Bregeon, J.
    Brigida, M.
    Bruel, P.
    Buehler, R.
    Burnett, T. H.
    Buson, S.
    Caliandro, G. A.
    Cameron, R. A.
    Caraveo, P. A.
    Carrigan, S.
    Casandjian, J. M.
    Cavazzuti, E.
    Cecchi, C.
    Celik, Oe
    Chekhtman, A.
    Cheung, C. C.
    Chiang, J.
    Ciprini, S.
    Claus, R.
    Cohen-Tanugi, J.
    Corbel, S.
    Cutini, S.
    D'Ammando, F.
    Dermer, C. D.
    de Angelis, A.
    de Palma, F.
    Digel, S. W.
    do Couto e Silva, E.
    Drell, P. S.
    Dubois, R.
    Dumora, D.
    Escande, L.
    Favuzzi, C.
    Fegan, S. J.
    Ferrara, E. C.
    Fuhrmann, L.
    Fukazawa, Y.
    Fusco, P.
    [J]. ASTROPHYSICAL JOURNAL, 2010, 721 (02) : 1383 - 1396
  • [4] THE LUMINOSITY FUNCTION OF FERMI-DETECTED FLAT-SPECTRUM RADIO QUASARS
    Ajello, M.
    Shaw, M. S.
    Romani, R. W.
    Dermer, C. D.
    Costamante, L.
    King, O. G.
    Max-Moerbeck, W.
    Readhead, A.
    Reimer, A.
    Richards, J. L.
    Stevenson, M.
    [J]. ASTROPHYSICAL JOURNAL, 2012, 751 (02)
  • [5] THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION
    Atwood, W. B.
    Abdo, A. A.
    Ackermann, M.
    Althouse, W.
    Anderson, B.
    Axelsson, M.
    Baldini, L.
    Ballet, J.
    Band, D. L.
    Barbiellini, G.
    Bartelt, J.
    Bastieri, D.
    Baughman, B. M.
    Bechtol, K.
    Bederede, D.
    Bellardi, F.
    Bellazzini, R.
    Berenji, B.
    Bignami, G. F.
    Bisello, D.
    Bissaldi, E.
    Blandford, R. D.
    Bloom, E. D.
    Bogart, J. R.
    Bonamente, E.
    Bonnell, J.
    Borgland, A. W.
    Bouvier, A.
    Bregeon, J.
    Brez, A.
    Brigida, M.
    Bruel, P.
    Burnett, T. H.
    Busetto, G.
    Caliandro, G. A.
    Cameron, R. A.
    Caraveo, P. A.
    Carius, S.
    Carlson, P.
    Casandjian, J. M.
    Cavazzuti, E.
    Ceccanti, M.
    Cecchi, C.
    Charles, E.
    Chekhtman, A.
    Cheung, C. C.
    Chiang, J.
    Chipaux, R.
    Cillis, A. N.
    Ciprini, S.
    [J]. ASTROPHYSICAL JOURNAL, 2009, 697 (02) : 1071 - 1102
  • [6] The γ-ray brightest days of the blazar 3C 454.3
    Bonnoli, G.
    Ghisellini, G.
    Foschini, L.
    Tavecchio, F.
    Ghirlanda, G.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 410 (01) : 368 - 380
  • [7] The power of blazar jets
    Celotti, Annalisa
    Ghiselllni, Gabriele
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2008, 385 (01) : 283 - 300
  • [8] Dermer C. D., 2013, APJ UNPUB
  • [9] MODEL FOR THE HIGH-ENERGY EMISSION FROM BLAZARS
    DERMER, CD
    SCHLICKEISER, R
    [J]. ASTROPHYSICAL JOURNAL, 1993, 416 (02) : 458 - 484
  • [10] DERMER CD, 2009, HIGH ENERGY RAD BLAC
1234