VHE γ-ray discovery and multiwavelength study of the blazar 1ES 2322-409

被引:9
作者
Abdalla, H. [2 ]
Aharonian, F. [3 ,4 ,5 ]
Benkhali, F. Ait [3 ]
Anguner, E. O. [6 ]
Arakawa, M. [7 ]
Arcaro, C. [2 ]
Armand, C. [8 ]
Arrieta, M. [9 ]
Backes, M. [2 ,10 ]
Barnard, M. [2 ]
Becherini, Y. [11 ]
Tjus, J. Becker [12 ]
Berge, D. [13 ]
Bernhard, S. [14 ]
Bernloehr, K. [3 ]
Blackwell, R. [15 ]
Bottcher, M. [2 ]
Boisson, C. [9 ]
Bolmont, J. [16 ]
Bonnefoy, S. [13 ]
Bordas, P. [3 ]
Bregeon, J. [17 ]
Brun, F. [18 ]
Brun, P. [19 ]
Bryan, M. [20 ]
Buechele, M. [21 ]
Bulik, T. [22 ]
Bylund, T. [11 ]
Capasso, M. [23 ]
Caroff, S. [24 ]
Carosi, A. [8 ]
Casanova, S. [3 ,25 ]
Cerruti, M. [16 ]
Chakraborty, N. [3 ]
Chandra, S. [2 ]
Chaves, R. C. G. [17 ]
Chen, A. [26 ]
Colafrancesco, S. [26 ]
Condon, B. [18 ]
Davids, I. D. [10 ]
Dei, C. [3 ]
Devin, J. [17 ]
deWilt, P. [15 ]
Dirson, L. [27 ]
Djannati-Atai, A. [28 ]
Dmytriiev, A. [9 ]
Donath, A. [3 ]
Drury, L. O. 'C. [4 ]
Dyks, J. [29 ]
Egberts, K. [30 ]
机构
[1] Univ Sao Paulo, Inst Fis Sao Carlos, Ave Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP, Brazil
[2] North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa
[3] Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany
[4] Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland
[5] Natl Acad Sci Republ Armenia, Marshall Baglzramian Ave, Yerevan 240019, Armenia
[6] Aix Marseille Univ, CNRS, IN2P3, CPPM, F-13288 Marseille 09, France
[7] Rikkyo Univ, Dept Phys, Toshima Ku, 3-34-1 Nishi Ikebukuro, Tokyo 1718501, Japan
[8] Univ Savoie Mt Blanc, Univ Grenoble Alpes, Lab Annecy Phys Particules, CNRS, F-74000 Annecy, France
[9] Univ Paris Diderot, LUTH, Observ Paris, PSL Res Univ,CNRS, 5 Pl Jules Janssen, E-92190 Meudon, France
[10] Univ Namibia, Dept Phys, Private Bag 13301, Windhoek, Namibia
[11] Linnaeus Univ, Dept Phys & Elect Engn, SE-35195 Vaxjo, Sweden
[12] Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany
[13] DESY, D-15738 Zeuthen, Germany
[14] Leopold Franzens Univ Innsbruck, Inst Astro & Thilchenphys, A-6020 Innsbruck, Austria
[15] Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia
[16] Univ Paris Diderot, Sorbonne Univ, Sorbonne Paris Cite, CNRS,IN2P3,Lab Phys Theor & Hautes Energies, 4 Pl Jussieu, F-75252 Paris, France
[17] Univ Montpellier, Lab Univers & Particules Montpellier, CNRS, IN2P3, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France
[18] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France
[19] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France
[20] Univ Amsterdam, GRAPPA, Astron Inst Anton Pannekoek, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
[21] Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany
[22] Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland
[23] Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany
[24] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[25] Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland
[26] Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa
[27] Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany
[28] Univ Paris Diderot, AstroParticule & Cosmol, Sorbonne Paris Cite, Observ Paris,APC,CNRS,IN2P3,CEA Irfu, 10 Rue Alice Damon & Leonie Duquet, F-75205 Paris 13, France
[29] Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland
[30] Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Golm, Germany
[31] Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany
[32] Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
[33] Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany
[34] Uniwersytet Jagiellonski, Astron Observ, Ul Orla 171, PL-30244 Krakow, Poland
[35] Nicolaus Copernicus Univ, Ctr Astron, Fac Phys Astron & Informat, Grudziadzka 5, PL-87100 Torun, Poland
[36] Japan Aerosp Explorat Agcy JAXA, Inst Space & Astronaut Sci, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2298510, Japan
[37] Univ Free State, Dept Phys, POB 339, ZA-9100 Bloemfontein, South Africa
[38] Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, England
[39] ITA Univ Heidelberg, D-69117 Heidelberg, Germany
[40] Yerevan Phys Inst, 2 Alikhanian Bros St, Yerevan 375036, Armenia
[41] Stockholm Univ, Oskar Klein Ctr, Albanova Univ Ctr, Dept Phys, SE-10691 Stockholm, Sweden
基金
美国国家科学基金会; 新加坡国家研究基金会; 美国国家航空航天局; 日本学术振兴会; 奥地利科学基金会; 澳大利亚研究理事会; 英国科学技术设施理事会;
关键词
radiation mechanisms: non-thermal; galaxies: active; BL Lacertae objects: individual: 1ES 2322-409; gamma-rays: galaxies; SKY; CALIBRATION; TELESCOPE; EMISSION; RADIO;
D O I
10.1093/mnras/sty2686
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A hotspot at a position compatible with the BL. Lac object 1ES 2322-409 was serendipitously detected with H.E.S.S. during observations performed in 2004 and 2006 on the blazar PKS 2316-423. Additional data on 1ES 2322-409 were taken in 2011 and 2012, leading to a total live-time of 22.3 h. Point-like very-high-energy (VHE; E > 100 GeV) gamma-ray emission is detected from a source centred on the IFS 2322-409 position, with an excess of 116.7 events at a significance of 6.0 sigma. The average VHE gamma-ray spectrum is well described with a power law with a photon index Gamma = 3.40 +/- 0.66(stat) +/- 0.20(sys) and an integral flux Phi(E > 200 GeV) = (3.11 +/- 0.71(stat) 0.62(sys)) x 10(-2)cm(-2)s(-1), which corresponds to 1.1 per cent of the Crab nebula flux above 200 GeV. Multiwavelength data obtained with Fermi LAT, Swift XRT and UVOT, RXTE PCA, ATOM, and additional data from WISE, GROND, and Catalina are also used to characterize the broad-band non-thermal emission of lES 2322-409. The multiwavelength behaviour indicates day-scale variability. Swift UVOT and XRT data show strong variability at longer scales. A spectral energy distribution (SED) is built from contemporaneous observations obtained around a high state identified in Swift data. A modelling of the SED is performed with a stationary homogeneous one-zone synchrotronself-Compton leptonic model. The redshift of the source being unknown, two plausible values were tested for the modelling. A systematic scan of the model parameters space is performed, resulting in a well-constrained combination of values providing a good description of the broad-band behaviour of 1ES 2322-409.
引用
收藏
页码:3011 / 3022
页数:12
相关论文
共 50 条
[1]   HESS discovery of VHE γ-rays from the quasar PKS 1510-089 [J].
Abramowski, A. ;
Acero, F. ;
Aharonian, F. ;
Akhperjanian, A. G. ;
Anton, G. ;
Balenderan, S. ;
Balzer, A. ;
Barnacka, A. ;
Becherini, Y. ;
Tjus, J. Becker ;
Behera, B. ;
Bernloehr, K. ;
Birsin, E. ;
Biteau, J. ;
Bochow, A. ;
Boisson, C. ;
Bolmont, J. ;
Bordas, P. ;
Brucker, J. ;
Brun, F. ;
Brun, P. ;
Bulik, T. ;
Carrigan, S. ;
Casanova, S. ;
Cerruti, M. ;
Chadwick, P. M. ;
Chaves, R. C. G. ;
Cheesebrough, A. ;
Colafrancesco, S. ;
Cologna, G. ;
Conrad, J. ;
Couturier, C. ;
Dalton, M. ;
Daniel, M. K. ;
Davids, I. D. ;
Degrange, B. ;
Deil, C. ;
deWilt, P. ;
Dickinson, H. J. ;
Djannati-Atai, A. ;
Domainko, W. ;
Drury, L. O'C. ;
Dubus, G. ;
Dutson, K. ;
Dyks, J. ;
Dyrda, M. ;
Egberts, K. ;
Eger, P. ;
Espigat, P. ;
Fallon, L. .
ASTRONOMY & ASTROPHYSICS, 2013, 554
[2]   DEVELOPMENT OF THE MODEL OF GALACTIC INTERSTELLAR EMISSION FOR STANDARD POINT-SOURCE ANALYSIS OF FERMI LARGE AREA TELESCOPE DATA [J].
Acero, F. ;
Ackermann, M. ;
Ajello, M. ;
Albert, A. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Bastieri, D. ;
Bellazzini, R. ;
Bissaldi, E. ;
Bloom, E. D. ;
Bonino, R. ;
Bottacini, E. ;
Brandt, T. J. ;
Bregeon, J. ;
Bruel, P. ;
Buehler, R. ;
Buson, S. ;
Caliandro, G. A. ;
Cameron, R. A. ;
Caragiulo, M. ;
Caraveo, P. A. ;
Casandjian, J. M. ;
Cavazzuti, E. ;
Cecchi, C. ;
Charles, E. ;
Chekhtman, A. ;
Chiang, J. ;
Chiaro, G. ;
Ciprini, S. ;
Claus, R. ;
Cohen-Tanugi, J. ;
Conrad, J. ;
Cuoco, A. ;
Cutini, S. ;
D'Ammando, F. ;
de Angelis, A. ;
de Palma, F. ;
Desiante, R. ;
Digel, S. W. ;
Di Venere, L. ;
Drell, P. S. ;
Favuzzi, C. ;
Fegan, S. J. ;
Ferrara, E. C. ;
Focke, W. B. ;
Franckowiak, A. ;
Funk, S. ;
Fusco, P. ;
Gargano, F. .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2016, 223 (02)
[3]   FERMI LARGE AREA TELESCOPE THIRD SOURCE CATALOG [J].
Acero, F. ;
Ackermann, M. ;
Ajello, M. ;
Albert, A. ;
Atwood, W. B. ;
Axelsson, M. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Bastieri, D. ;
Belfiore, A. ;
Bellazzini, R. ;
Bissaldi, E. ;
Blandford, R. D. ;
Bloom, E. D. ;
Bogart, J. R. ;
Bonino, R. ;
Bottacini, E. ;
Bregeon, J. ;
Britto, R. J. ;
Bruel, P. ;
Buehler, R. ;
Burnett, T. H. ;
Buson, S. ;
Caliandro, G. A. ;
Cameron, R. A. ;
Caputo, R. ;
Caragiulo, M. ;
Caraveo, P. A. ;
Casandjian, J. M. ;
Cavazzuti, E. ;
Charles, E. ;
Chaves, R. C. G. ;
Chekhtman, A. ;
Cheung, C. C. ;
Chiang, J. ;
Chiaro, G. ;
Ciprini, S. ;
Claus, R. ;
Cohen-Tanugi, J. ;
Cominsky, L. R. ;
Conrad, J. ;
Cutini, S. ;
D'Ammando, F. ;
de Angelis, A. ;
DeKlotz, M. ;
de Palma, F. ;
Desiante, R. ;
Digel, S. W. ;
Di Venere, L. .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2015, 218 (02)
[4]   THE THIRD CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE [J].
Ackermann, M. ;
Ajello, M. ;
Atwood, W. B. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Bastieri, D. ;
Gonzalez, J. Becerra ;
Bellazzini, R. ;
Bissaldi, E. ;
Blandford, R. D. ;
Bloom, E. D. ;
Bnino, R. ;
Bottagini, E. ;
Brandt, T. J. ;
Bregeon, J. ;
Britto, R. J. ;
Bruel, P. ;
Buehler, R. ;
Buson, S. ;
Caliandro, G. A. ;
Cameron, R. A. ;
Caragiulo, M. ;
Caraveo, P. A. ;
Careenter, B. ;
Casandjian, J. M. ;
Cavazzuti, E. ;
Cecchi, C. ;
Charles, E. ;
Chekhtman, A. ;
Cheung, C. C. ;
Chiang, J. ;
Chiaro, G. ;
Ciprini, S. ;
Claus, R. ;
Cohen-Tanugi, J. ;
Cominsky, L. R. ;
Conrad, J. ;
Cutini, S. ;
D'Abrusco, R. ;
D'Ammando, F. ;
de Angelis, A. ;
Desiante, R. ;
Digel, S. W. ;
Di Venere, L. ;
Drell, P. S. ;
FAvuzzi, C. ;
Fegan, S. J. ;
Ferrara, E. C. ;
Finke, J. .
ASTROPHYSICAL JOURNAL, 2015, 810 (01)
[5]   Upper limits from HESS active galactic nuclei observations in 2005-2007 [J].
Aharonian, F. ;
Akhperjanian, A. G. ;
de Almeida, U. Barres ;
Bazer-Bachi, A. R. ;
Behera, B. ;
Beilicke, M. ;
Benbow, W. ;
Bernloehr, K. ;
Boisson, C. ;
Bolz, O. ;
Borrel, V. ;
Braun, I. ;
Brion, E. ;
Brown, A. M. ;
Buehler, R. ;
Bulik, T. ;
Buesching, I. ;
Boutelier, T. ;
Carrigan, S. ;
Chadwick, P. M. ;
Chounet, L. -M. ;
Clapson, A. C. ;
Coignet, G. ;
Cornils, R. ;
Costamante, L. ;
Dalton, M. ;
Degrange, B. ;
Dickinson, H. J. ;
Djannati-Ataie, A. ;
Domainko, W. ;
Drury, L. O'C. ;
Dubois, F. ;
Dubus, G. ;
Dyks, J. ;
Egberts, K. ;
Emmanoulopoulos, D. ;
Espigat, P. ;
Farnier, C. ;
Feinstein, F. ;
Fiasson, A. ;
Foerster, A. ;
Fontaine, G. ;
Funk, S. ;
Fuessling, M. ;
Gallant, Y. A. ;
Giebels, B. ;
Glicenstein, J. F. ;
Glueck, B. ;
Goret, P. ;
Hadjichristidis, C. .
ASTRONOMY & ASTROPHYSICS, 2008, 478 (02) :387-393
[6]   Observations of the crab nebula with HESS [J].
Aharonian, F. ;
Akhperjanian, A. G. ;
Bazer-Bachi, A. R. ;
Beilicke, M. ;
Benbow, W. ;
Berge, D. ;
Bernloehr, K. ;
Boisson, C. ;
Bolz, O. ;
Borrel, V. ;
Braun, I. ;
Breitling, F. ;
Brown, A. M. ;
Buehler, R. ;
Buesching, I. ;
Carrigan, S. ;
Chadwick, P. M. ;
Chounet, L. -M. ;
Cornils, R. ;
Costamante, L. ;
Degrange, B. ;
Dickinson, H. J. ;
Djannati-Atai, A. ;
Drury, L. O'C. ;
Dubus, G. ;
Egberts, K. ;
Emmanoulopoulos, D. ;
Espigat, P. ;
Feinstein, F. ;
Ferrero, E. ;
Fiasson, A. ;
Fontaine, G. ;
Funk, Seb. ;
Funk, S. ;
Gallant, Y. A. ;
Giebels, B. ;
Glicenstein, J. F. ;
Goret, P. ;
Hadjichristidis, C. ;
Hauser, D. ;
Hauser, M. ;
Heinzelmann, G. ;
Henri, G. ;
Hermann, G. ;
Hinton, J. A. ;
Hofmann, W. ;
Holleran, M. ;
Horns, D. ;
Jacholkowska, A. ;
de Jager, O. C. .
ASTRONOMY & ASTROPHYSICS, 2006, 457 (03) :899-915
[7]   3FHL: The Third Catalog of Hard Fermi-LAT Sources [J].
Ajello, M. ;
Atwood, W. B. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Bastieri, D. ;
Bellazzini, R. ;
Bissaldi, E. ;
Blandford, R. D. ;
Bloom, E. D. ;
Bonino, R. ;
Bregeon, J. ;
Britto, R. J. ;
Bruel, P. ;
Buehler, R. ;
Buson, S. ;
Cameron, R. A. ;
Caputo, R. ;
Caragiulo, M. ;
Caraveo, P. A. ;
Cavazzuti, E. ;
Cecchi, C. ;
Charles, E. ;
Chekhtman, A. ;
Cheung, C. C. ;
Chiaro, G. ;
Ciprini, S. ;
Cohen, J. M. ;
Costantin, D. ;
Costanza, F. ;
Cuoco, A. ;
Cutini, S. ;
D'Ammando, F. ;
de Palma, F. ;
Desiante, R. ;
Digel, S. W. ;
Di Lalla, N. ;
Di Mauro, M. ;
Di Venere, L. ;
Dominguez, A. ;
Drell, P. S. ;
Dumora, D. ;
Favuzzi, C. ;
Fegan, S. J. ;
Ferrara, E. C. ;
Fortin, P. ;
Franckowiak, A. ;
Fukazawa, Y. ;
Funk, S. ;
Fusco, P. .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2017, 232 (02)
[8]   DETECTION OF VERY HIGH ENERGY γ-RAY EMISSION FROM THE PERSEUS CLUSTER HEAD-TAIL GALAXY IC 310 BY THE MAGIC TELESCOPES [J].
Aleksic, J. ;
Antonelli, L. A. ;
Antoranz, P. ;
Backes, M. ;
Barrio, J. A. ;
Bastieri, D. ;
Becerra Gonzalez, J. ;
Bednarek, W. ;
Berdyugin, A. ;
Berger, K. ;
Bernardini, E. ;
Biland, A. ;
Blanch, O. ;
Bock, R. K. ;
Boller, A. ;
Bonnoli, G. ;
Bordas, P. ;
Tridon, D. Borla ;
Bosch-Ramon, V. ;
Bose, D. ;
Braun, I. ;
Bretz, T. ;
Camara, M. ;
Canellas, A. ;
Carmona, E. ;
Carosi, A. ;
Colin, P. ;
Colombo, E. ;
Contreras, J. L. ;
Cortina, J. ;
Cossio, L. ;
Covino, S. ;
Dazzi, F. ;
De Angelis, A. ;
De Cea del Pozo, E. ;
De Lotto, B. ;
De Maria, M. ;
De Sabata, F. ;
Delgado Mendez, C. ;
Diago Ortega, A. ;
Doert, M. ;
Dominguez, A. ;
Prester, D. Dominis ;
Dorner, D. ;
Doro, M. ;
Elsaesser, D. ;
Errando, M. ;
Ferenc, D. ;
Fonseca, M. V. ;
Font, L. .
ASTROPHYSICAL JOURNAL LETTERS, 2010, 723 (02) :L207-L212
[9]  
Atwood W., 2013, ARXIV13033514
[10]  
BADE N, 1992, ASTRON ASTROPHYS, V254, pL21