Hadronic-origin TeV γ rays and ultrahigh energy cosmic rays from Centaurus A

被引：40

作者：

Sahu, Sarira ^{[1
]}

Zhang, Bing ^{[2
]}

Fraija, Nissim ^{[3
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico

[2] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

[3] Univ Nacl Autonoma Mexico, Inst Astron, Mexico City 04510, DF, Mexico

来源：

PHYSICAL REVIEW D | 2012年 / 85卷 / 04期

基金：

美国国家科学基金会;

关键词：

EMISSION; RADIO; VIEW;

D O I：

10.1103/PhysRevD.85.043012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Centaurus A (Cen A) is the nearest radio-loud AGN and is detected from radio to very high-energy gamma rays. Its nuclear spectral energy distribution (SED) shows a double-peak feature, which is well explained by the leptonic synchrotron + synchrotron self-Compton model. This model however cannot account for the observed high energy photons in the TeV range, which display a distinct component. Here, we show that similar to TeV photons can be well interpreted as the pi(0) decay products from p gamma interactions of Fermi-accelerated high-energy protons in the jet with the seed photons around the second SED peak at similar to 170 keV. Extrapolating the inferred proton spectrum to high energies, we find that this same model is consistent with the detection of two ultra-high-energy cosmic ray events detected by Pierre Auger Observatory from the direction of Cen A. We also estimate the GeV neutrino flux from the same process, and find that it is too faint to be detected by current high-energy neutrino detectors.

引用

页数：5

共 32 条

[1] FERMI LARGE AREA TELESCOPE VIEW OF THE CORE OF THE RADIO GALAXY CENTAURUS A [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Atwood, W. B. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Baughman, B. M. ;

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. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Cannon, A. ;

Caraveo, P. A. ;

Carrigan, S. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Celik, Oe ;

Charles, E. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Colafrancesco, S. ;

Cominsky, L. R. ;

Conrad, J. ;

Costamante, L. ;

Davis, D. S. ;

Dermer, C. D. ;

de Angelis, A. ;

de Palma, F. ;

do Couto e Silva, E. ;

Drell, P. S. .

ASTROPHYSICAL JOURNAL, 2010, 719 (02) :1433-1444

[2] Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei [J].

Abraham, J. ;

Abreu, P. ;

Aglietta, M. ;

Aguirre, C. ;

Allard, D. ;

Allekotte, I. ;

Allen, J. ;

Allison, P. ;

Alvarez-Muniz, J. ;

Ambrosio, M. ;

Anchordoqui, L. ;

Andringa, S. ;

Anzalone, A. ;

Aramo, C. ;

Argiro, S. ;

Arisaka, K. ;

Armengaud, E. ;

Arneodo, F. ;

Arqueros, F. ;

Asch, T. ;

Asorey, H. ;

Assis, P. ;

Atulugama, B. S. ;

Aublin, J. ;

Ave, M. ;

Avila, G. ;

Baecker, T. ;

Badagnani, D. ;

Barbosa, A. F. ;

Barnhill, D. ;

Barroso, S. L. C. ;

Bauleo, P. ;

Beatty, J. J. ;

Beau, T. ;

Becker, B. R. ;

Becker, K. H. ;

Bellido, J. A. ;

BenZvi, S. ;

Berat, C. ;

Bergmann, T. ;

Bernardini, P. ;

Bertou, X. ;

Biermann, P. L. ;

Billoir, P. ;

Blanch-Bigas, O. ;

Blanco, F. ;

Blasi, P. ;

Bleve, C. ;

Bluemer, H. ;

Bohacova, M. .

ASTROPARTICLE PHYSICS, 2008, 29 (03) :188-204

[3] Correlation of the highest-energy cosmic rays with nearby extragalactic objects [J].

Abraham, J. ;

Abreu, P. ;

Aglietta, M. ;

Aguirre, C. ;

Allard, D. ;

Allekotte, I. ;

Allen, J. ;

Allison, P. ;

Alvarez, C. ;

Alvarez-Muniz, J. ;

Ambrosio, M. ;

Anchordoqui, L. ;

Andringa, S. ;

Anzalone, A. ;

Aramo, C. ;

Argiro, S. ;

Arisaka, K. ;

Armengaud, E. ;

Arneodo, F. ;

Arqueros, F. ;

Asch, T. ;

Asorey, H. ;

Assis, P. ;

Atulugama, B. S. ;

Aublin, J. ;

Ave, M. ;

Avila, G. ;

Baecker, T. ;

Badagnani, D. ;

Barbosa, A. F. ;

Barnhill, D. ;

Barroso, S. L. C. ;

Bauleo, P. ;

Beatty, J. ;

Beau, T. ;

Becker, B. R. ;

Becker, K. H. ;

Bellido, J. A. ;

BenZvi, S. ;

Berat, C. ;

Bergmann, T. ;

Bernardini, P. ;

Bertou, X. ;

Biermann, P. L. ;

Billoir, P. ;

Blanch-Bigas, O. ;

Blanco, F. ;

Blasi, P. ;

Bleve, C. ;

Bluemer, H. .

SCIENCE, 2007, 318 (5852) :938-943

[4] Measurement of the Depth of Maximum of Extensive Air Showers above 1018 eV [J].

Abraham, J. ;

Abreu, P. ;

Aglietta, M. ;

Ahn, E. J. ;

Allard, D. ;

Allekotte, I. ;

Allen, J. ;

Alvarez-Muniz, J. ;

Ambrosio, M. ;

Anchordoqui, L. ;

Andringa, S. ;

Anticic, T. ;

Anzalone, A. ;

Aramo, C. ;

Arganda, E. ;

Arisaka, K. ;

Arqueros, F. ;

Asorey, H. ;

Assis, P. ;

Aublin, J. ;

Ave, M. ;

Avila, G. ;

Baecker, T. ;

Badagnani, D. ;

Balzer, M. ;

Barber, K. B. ;

Barbosa, A. F. ;

Barroso, S. L. C. ;

Baughman, B. ;

Bauleo, P. ;

Beatty, J. J. ;

Becker, B. R. ;

Becker, K. H. ;

Belletoile, A. ;

Bellido, J. A. ;

BenZvi, S. ;

Berat, C. ;

Bergmann, T. ;

Bertou, X. ;

Biermann, P. L. ;

Billoir, P. ;

Blanch-Bigas, O. ;

Blanco, F. ;

Blanco, M. ;

Bleve, C. ;

Bluemer, H. ;

Bohacova, M. ;

Boncioli, D. ;

Bonifazi, C. ;

Bonino, R. .

PHYSICAL REVIEW LETTERS, 2010, 104 (09)

[5]

ABRAHAM J, 2008, ASTROPART PHYS, V30, P45

[6] DISCOVERY OF VERY HIGH ENERGY γ-RAY EMISSION FROM CENTAURUS A WITH HESS [J].

Aharonian, F. ;

Akhperjanian, A. G. ;

Anton, G. ;

de Almeida, U. Barres ;

Bazer-Bachi, A. R. ;

Becherini, Y. ;

Behera, B. ;

Benbow, W. ;

Bernloehr, K. ;

Boisson, C. ;

Bochow, A. ;

Borrel, V. ;

Brion, E. ;

Brucker, J. ;

Brun, P. ;

Buehler, R. ;

Bulik, T. ;

Buesching, I. ;

Boutelier, T. ;

Chadwick, P. M. ;

Charbonnier, A. ;

Chaves, R. C. G. ;

Cheesebrough, A. ;

Chounet, L. -M. ;

Clapson, A. C. ;

Coignet, G. ;

Dalton, M. ;

Daniel, M. K. ;

Davids, I. D. ;

Degrange, B. ;

Deil, C. ;

Dickinson, H. J. ;

Djannati-Atai, A. ;

Domainko, W. ;

Drury, L. O'C. ;

Dubois, F. ;

Dubus, G. ;

Dyks, J. ;

Dyrda, M. ;

Egberts, K. ;

Emmanoulopoulos, D. ;

Espigat, P. ;

Farnier, C. ;

Feinstein, F. ;

Fiasson, A. ;

Foerster, A. ;

Fontaine, G. ;

Fuessling, M. ;

Gabici, S. ;

Gallant, Y. A. .

ASTROPHYSICAL JOURNAL LETTERS, 2009, 695 (01) :L40-L44

[7] The BL Lac heart of Centaurus A [J].

Chiaberge, M ;

Capetti, A ;

Celotti, A .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 324 (04) :L33-L37

[8] Ultrahigh energy neutrinos from Centaurus A and the Auger hot spot [J].

Cuoco, A. ;

Hannestad, S. .

PHYSICAL REVIEW D, 2008, 78 (02)

[9] Ultra-high-energy cosmic rays from black hole jets of radio galaxies [J].

Dermer, C. D. ;

Razzaque, S. ;

Finke, J. D. ;

Atoyan, A. .

NEW JOURNAL OF PHYSICS, 2009, 11

[10] MODEL FOR THE HIGH-ENERGY EMISSION FROM BLAZARS [J].

DERMER, CD ;

SCHLICKEISER, R .

ASTROPHYSICAL JOURNAL, 1993, 416 (02) :458-484

← 1 2 3 4 →