Statistical X-ray analysis of gamma-ray-emitting radio galaxies

被引：2
作者：
Matake, Hiroto [1 ]
Fukazawa, Yasushi [1 ]
机构：
[1] Hiroshima Univ, Grad Sch Adv Sci & Engn, Dept Phys, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 7398526, Japan
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2023年 / 75卷 / 06期
关键词：
galaxies: active; gamma rays: galaxies; methods: data analysis; X-rays: galaxies; PARSEC-SCALE STRUCTURE; HIGH-ENERGY EMISSION; ACCRETION MODES; COMPLETE SAMPLE; 1ST CATALOG; CENTAURUS-A; BLACK-HOLE; FR-I; LINE; LUMINOSITY;
D O I：
10.1093/pasj/psad060
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We systematically analyzed Swift/XRT X-ray data of gamma-ray-emitting radio galaxies (RGs) to study the origin of X-ray radiation. We studied the short-duration variability of spectra by using Swift/XRT data for 20 RGs. We found that gamma-ray-emitting RGs with a higher gamma-ray-to-X-ray flux ratio show a strong harder-when-brighter behavior. In addition, gamma-ray-emitting RGs with soft gamma-ray spectral index tend to have a hard X-ray spectral index and vice versa. Based on these properties, we imply a trend that gamma-ray-emitting RGs could be roughly classified into three types of X-ray emission: jet-dominated type, disk/corona-dominated type, and intermediate type. This classification is quite consistent with the optical and radio classification of RGs. In addition, we also discuss this result in terms of the Eddington luminosity ratio. These interpretations should be confirmed using larger samples of RGs in the future.
引用
收藏
页码：1124 / 1135
页数：12
相关论文
共 63 条
  • [1] FERMI LARGE AREA TELESCOPE OBSERVATIONS OF MISALIGNED ACTIVE GALACTIC NUCLEI
    Abdo, A. A.
    Ackermann, M.
    Ajello, M.
    Baldini, L.
    Ballet, J.
    Barbiellini, G.
    Bastieri, D.
    Bechtol, K.
    Bellazzini, R.
    Berenji, B.
    Blandford, R. D.
    Bloom, E. D.
    Bonamente, E.
    Borgland, A. W.
    Bouvier, A.
    Brandt, T. J.
    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.
    Colafrancesco, S.
    Conrad, J.
    Davis, D. S.
    Dermer, C. D.
    de Angelis, A.
    de Palma, F.
    do Couto e Silva, E.
    Drell, P. S.
    Dubois, R.
    [J]. ASTROPHYSICAL JOURNAL, 2010, 720 (01) : 912 - 922
  • [2] FERMI DISCOVERY OF GAMMA-RAY EMISSION FROM NGC 1275
    Abdo, A. A.
    Ackermann, M.
    Ajello, M.
    Asano, K.
    Baldini, L.
    Ballet, J.
    Barbiellini, G.
    Bastieri, D.
    Baughman, B. M.
    Bechtol, K.
    Bellazzini, R.
    Blandford, R. D.
    Bloom, E. D.
    Bonamente, E.
    Borgland, A. W.
    Bregeon, J.
    Brez, A.
    Brigida, M.
    Bruel, P.
    Burnett, T. H.
    Caliandro, G. A.
    Cameron, R. A.
    Caraveo, A.
    Casandjian, J. M.
    Cavazzuti, E.
    Cecchi, C.
    Celotti, A.
    Chekhtman, A.
    Cheung, C. C.
    Chiang, J.
    Ciprini, S.
    Claus, R.
    Cohen-Tanugi, J.
    Colafrancesco, S.
    Cominsky, L. R.
    Conrad, J.
    Costamante, L.
    Dermer, C. D.
    de Angelis, A.
    de Palma, F.
    Digel, S. W.
    Donato, D.
    do Couto e Silva, E.
    Drell, P. S.
    Dubois, R.
    Dumora, D.
    Farnier, C.
    Favuzzi, C.
    Finke, J.
    Focke, W. B.
    [J]. ASTROPHYSICAL JOURNAL, 2009, 699 (01) : 31 - 39
  • [3] Rapid and multiband variability of the TeV bright active nucleus of the galaxy IC 310
    Aleksie, J.
    Antonelli, L. A.
    Antoranz, P.
    Babic, A.
    de Almeida, U. Barres
    Barrio, J. A.
    Becerra Gonzalez, J.
    Bednarek, W.
    Berger, K.
    Bernardini, E.
    Biland, A.
    Blanch, O.
    Bock, R. K.
    Boller, A.
    Bonnefoy, S.
    Bonnoli, G.
    Tridon, D. Borla
    Borracci, F.
    Bretz, T.
    Carmona, E.
    Carosi, A.
    Carreto Fidalgo, D.
    Colin, P.
    Colombo, E.
    Contreras, J. L.
    Cortina, J.
    Cossio, L.
    Covino, S.
    Da Vela, P.
    Dazzi, F.
    De Angelis, A.
    De Caneva, G.
    Delgado Mendez, C.
    De Lotto, B.
    Doert, M.
    Dominguez, A.
    Dominis Prester, D.
    Dorner, D.
    Doro, M.
    Eisenacher, D.
    Elsaesser, D.
    Farina, E.
    Ferenc, D.
    Fonseca, M. V.
    Font, L.
    Fruck, C.
    Garcia Lopez, R. J.
    Garczarczyk, M.
    Terrats, D. Garrido
    Gaug, M.
    [J]. ASTRONOMY & ASTROPHYSICS, 2014, 563
  • [4] Revisiting the TeV detection prospects for radio galaxies
    Angioni, R.
    [J]. ASTROPARTICLE PHYSICS, 2020, 116
  • [5] THE 1.6 μm NEAR-INFRARED NUCLEI OF 3C RADIO GALAXIES: JETS, THERMAL EMISSION, OR SCATTERED LIGHT?
    Baldi, Ranieri D.
    Chiaberge, Marco
    Capetti, Alessandro
    Sparks, William
    Macchetto, F. Duccio
    O'Dea, Christopher P.
    Axon, David J.
    Baum, Stefi A.
    Quillen, Alice C.
    [J]. ASTROPHYSICAL JOURNAL, 2010, 725 (02) : 2426 - 2443
  • [6] Ballet J., 2020, ARXIV
  • [7] The high-energy view of the broad-line radio galaxy 3C 111
    Ballo, L.
    Braito, V.
    Reeves, J. N.
    Sambruna, R. M.
    Tombesi, F.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 418 (04) : 2367 - 2380
  • [8] The Chandra view of the 3C/FR I sample of low luminosity radio-galaxies
    Balmaverde, B
    Capetti, A
    Grandi, P
    [J]. ASTRONOMY & ASTROPHYSICS, 2006, 451 (01) : 35 - 44
  • [9] Soft γ-ray selected radio galaxies: favouring giant size discovery
    Bassani, L.
    Venturi, T.
    Molina, M.
    Malizia, A.
    Dallacasa, D.
    Panessa, F.
    Bazzano, A.
    Ubertini, P.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 461 (03) : 3165 - 3171
  • [10] The TeV-emitting radio galaxy 3C 264 VLBI kinematics and SED modeling
    Boccardi, B.
    Migliori, G.
    Grandi, P.
    Torresi, E.
    Mertens, F.
    Karamanavis, V
    Angioni, R.
    Vignali, C.
    [J]. ASTRONOMY & ASTROPHYSICS, 2019, 627
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