Gamma-ray observations of blazars and the intergalactic magnetic field spectrum

被引：49

作者：

Caprini, C. ^{[1
,2
]}

Gabici, S. ^{[3
]}

机构：

[1] CNRS, URA 2306, F-91191 Gif Sur Yvette, France

[2] CEA, IPhT, F-91191 Gif Sur Yvette, France

[3] Univ Paris Diderot, Obs Paris, CEA Irfu, Sorbonne Paris Cite,APC,CNRS,IN2P3, F-75013 Paris, France

来源：

PHYSICAL REVIEW D | 2015年 / 91卷 / 12期

关键词：

TEV LIGHT CURVES; LOWER BOUNDS; EMISSION; RADIATION; PHOTONS; CASCADE; SEARCH; FLARE;

D O I：

10.1103/PhysRevD.91.123514

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Very high-energy observations of blazars can be used to constrain the strength of the intergalactic magnetic field. A simplifying assumption which is often made is that of a magnetic field of constant strength composed of randomly oriented and identical cells. In this paper, we demonstrate that a more realistic description of the structure of the intergalactic magnetic field is indeed needed. If such a description is adopted, the observational bounds on the field strength are significantly affected in the limit of short field correlation lengths: in particular, they acquire a dependence on the magnetic field power spectrum. In the case of intergalactic magnetic fields which are generated causally, for which the magnetic field large-scale spectral index is n(B) >= 2 and even, the observational lower bound becomes more constraining by about a factor of 3. If instead -3 < n(B) < -2, the lower bound is significantly relaxed. Such magnetic fields with very red spectra can in principle be produced during inflation, but remain up to now speculative.

引用

页数：10

共 51 条

[1]

Abramowitz M., 1964, Handbook of mathematical functions with formulas, graphs, and mathematical tables, DOI DOI 10.1119/1.15378

[2] Search for extended γ-ray emission around AGN with HESS and Fermi-LAT [J].

Abramowski, A. ;

Aharonian, F. ;

Benkhali, F. Ait ;

Akhperjanian, A. G. ;

Anguener, E. ;

Anton, G. ;

Backes, M. ;

Balenderan, S. ;

Balzer, A. ;

Barnacka, A. ;

Becherini, Y. ;

Tjus, J. Becker ;

Bernloehr, K. ;

Birsin, E. ;

Bissaldi, E. ;

Biteau, J. ;

Boettcher, M. ;

Boisson, C. ;

Bolmont, J. ;

Bordas, P. ;

Brucker, J. ;

Brun, F. ;

Brun, P. ;

Bulik, T. ;

Carrigan, S. ;

Casanova, S. ;

Chadwick, P. M. ;

Chalme-Calvet, R. ;

Chaves, R. C. G. ;

Cheesebrough, A. ;

Chretien, M. ;

Colafrancesco, S. ;

Cologna, G. ;

Conrad, J. ;

Couturier, C. ;

Cui, Y. ;

Djannati-Atai, A. ;

Domainko, W. ;

Drury, L. O'C. ;

Dubus, G. ;

Dutson, K. ;

Dyks, J. ;

Dyrda, M. ;

Edwards, T. ;

Egberts, K. ;

Eger, P. ;

Espigat, P. ;

Farnier, C. ;

Fegan, S. ;

Feinstein, F. .

ASTRONOMY & ASTROPHYSICS, 2014, 562

[3] VERITAS OBSERVATIONS OF A VERY HIGH ENERGY γ-RAY FLARE FROM THE BLAZAR 3C 66A [J].

Acciari, V. A. ;

Aliu, E. ;

Arlen, T. ;

Beilicke, M. ;

Benbow, W. ;

Boettcher, M. ;

Bradbury, S. M. ;

Buckley, J. H. ;

Bugaev, V. ;

Butt, Y. ;

Byrum, K. ;

Cannon, A. ;

Celik, O. ;

Cesarini, A. ;

Chow, Y. C. ;

Ciupik, L. ;

Cogan, P. ;

Cui, W. ;

Daniel, M. K. ;

Dickherber, R. ;

Ergin, T. ;

Falcone, A. ;

Fegan, S. J. ;

Finley, J. P. ;

Fortin, P. ;

Fortson, L. ;

Furniss, A. ;

Gall, D. ;

Gibbs, K. ;

Gillanders, G. H. ;

Godambe, S. ;

Grube, J. ;

Guenette, R. ;

Gyuk, G. ;

Hanna, D. ;

Hays, E. ;

Holder, J. ;

Horan, D. ;

Hui, C. M. ;

Humensky, T. B. ;

Imran, A. ;

Kaaret, P. ;

Karlsson, N. ;

Kertzman, M. ;

Kieda, D. ;

Kildea, J. ;

Konopelko, A. ;

Krawczynski, H. ;

Krennrich, F. ;

Lang, M. J. .

ASTROPHYSICAL JOURNAL LETTERS, 2009, 693 (02) :L104-L108

[4] Precision Measurement of the Boron to Carbon Flux Ratio in Cosmic Rays from 1.9 GV to 2.6 TV with the Alpha Magnetic Spectrometer on the International Space Station [J].

Aguilar, M. ;

Cavasonza, L. Ali ;

Ambrosi, G. ;

Arruda, L. ;

Attig, N. ;

Aupetit, S. ;

Azzarello, P. ;

Bachlechner, A. ;

Barao, F. ;

Barrau, A. ;

Barrin, L. ;

Bartoloni, A. ;

Basara, L. ;

Pree, S. Basegmez-du ;

Battarbee, M. ;

Battiston, R. ;

Becker, U. ;

Behlmann, M. ;

Beischer, B. ;

Berdugo, J. ;

Bertucci, B. ;

Bindel, K. F. ;

Bindi, V. ;

Boella, G. ;

de Boer, W. ;

Bollweg, K. ;

Bonnivard, V. ;

Borgia, B. ;

Boschini, M. J. ;

Bourquin, M. ;

Bueno, E. F. ;

Burger, J. ;

Cadoux, F. ;

Cai, X. D. ;

Capell, M. ;

Caroff, S. ;

Casaus, J. ;

Castellini, G. ;

Cervelli, F. ;

Chae, M. J. ;

Chang, Y. H. ;

Chen, A. I. ;

Chen, G. M. ;

Chen, H. S. ;

Cheng, L. ;

Chou, H. Y. ;

Choumilov, E. ;

Choutko, V. ;

Chung, C. H. ;

Clark, C. .

PHYSICAL REVIEW LETTERS, 2016, 117 (23)

[5] An exceptional very high energy gamma-ray flare of PKS 2155-304 [J].

Aharonian, F. ;

Akhperjanian, A. G. ;

Bazer-Bachi, A. R. ;

Behera, B. ;

Beilicke, M. ;

Benbow, W. ;

Berge, D. ;

Bernloehr, K. ;

Boisson, C. ;

Bolz, O. ;

Borrel, V. ;

Boutelier, T. ;

Braun, I. ;

Brion, E. ;

Brown, A. M. ;

Buehler, R. ;

Buesching, I. ;

Bulik, T. ;

Carrigan, S. ;

Chadwick, P. M. ;

Clapson, A. C. ;

Chounet, L.-M. ;

Coignet, G. ;

Cornils, R. ;

Costamante, L. ;

Degrange, B. ;

Dickinson, H. J. ;

Djannati-Atai, A. ;

Domainko, W. ;

Drury, L. O'C. ;

Dubus, G. ;

Dyks, J. ;

Egberts, K. ;

Emmanoulopoulos, D. ;

Espigat, P. ;

Farnier, C. ;

Feinstein, F. ;

Fiasson, A. ;

Foerster, A. ;

Fontaine, G. ;

Funk, Seb. ;

Funk, S. ;

Fuessling, M. ;

Gallant, Y. A. ;

Giebels, B. ;

Glicenstein, J. F. ;

Glueck, B. ;

Goret, P. ;

Hadjichristidis, C. ;

Hauser, D. .

ASTROPHYSICAL JOURNAL, 2007, 664 (02) :L71-L74

[6] Angular, spectral, and time distributions of highest energy protons and associated secondary gamma rays and neutrinos propagating through extragalactic magnetic and radiation fields [J].

Aharonian, F. A. ;

Kelner, S. R. ;

Prosekin, A. Yu. .

PHYSICAL REVIEW D, 2010, 82 (04)

[7] VERY-HIGH-ENERGY GAMMA-RAYS FROM ACTIVE GALACTIC NUCLEI - CASCADING ON THE COSMIC BACKGROUND-RADIATION FIELDS AND THE FORMATION OF PAIR HALOS [J].

AHARONIAN, FA ;

COPPI, PS ;

VOLK, HJ .

ASTROPHYSICAL JOURNAL, 1994, 423 (01) :L5-L8

[8] Similarities and differences between relativistic electron-photon cascades developed in matter, photon gas and magnetic field [J].

Aharonian, FA ;

Plyasheshnikov, AV .

ASTROPARTICLE PHYSICS, 2003, 19 (04) :525-548

[9]

Aharonian FA, 1999, ASTRON ASTROPHYS, V349, P11

[10] Variable very high energy γ-ray emission from Markarian 501 [J].

Albert, J. ;

Aliu, E. ;

Anderhub, H. ;

Antoranz, P. ;

Armada, A. ;

Baixeras, C. ;

Barrio, J. A. ;

Bartko, H. ;

Bastieri, D. ;

Becker, J. K. ;

Bednarek, W. ;

Berger, K. ;

Bigongiari, C. ;

Biland, A. ;

Bock, R. K. ;

Bordas, P. ;

Bosch-Ramon, V. ;

Bretz, T. ;

Britvitch, I. ;

Camara, M. ;

Carmona, E. ;

Chilingarian, A. ;

Coarasa, J. A. ;

Commichau, S. ;

Contreras, J. L. ;

Cortina, J. ;

Costado, M. T. ;

Curtef, V. ;

Danielyan, V. ;

Dazzi, F. ;

De Angelis, A. ;

Delgado, C. ;

de los Reyes, R. ;

De Lotto, B. ;

Domingo-Santamaria, E. ;

Dorner, D. ;

Doro, M. ;

Errando, M. ;

Fagiolini, M. ;

Ferenc, D. ;

Fernandez, E. ;

Firpo, R. ;

Flix, J. ;

Fonseca, M. V. ;

Font, L. ;

Fuchs, M. ;

Galante, N. ;

Garcia-Lopez, R. J. ;

Garczarczyk, M. ;

Gaug, M. .

ASTROPHYSICAL JOURNAL, 2007, 669 (02) :862-883

← 1 2 3 4 5 6 →