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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2002, Vol. 26> Issue(S1) : 104-111 

Where Do the Extra High Energy Cosmic Rays Come From A Model of Active Galactic Nuclei With Magnetic Monopoles

  •  Department of Astronomy, Nanjing University, Nanjing 210093, ChinaJoint Astrophysics Center of CAS -Beijing University, Beijing 100871, ChinaThe Open Laboratory for Cosmic Ray and High Energy Astrophysics, CAS, Beijing 100039, China

  • The origin and signature of ultra high-energy cosmic rays are still somewhat mysterious. In this paper, we present an effective acceleration mechanism for such ultra high-energy events based on supermassive stellar objects with saturation of magnetic monopoles of ‘t Hooft-Polyakov type in the universe. Catalyzed by magnetic monopoles, nucleons may decay to energetic charged particles and radiation, and can travel to great distance from their source because of the absence of horizon and central singularity of these supermassive stellar objects, due to Rubakov-Callan effect. These rapid rotating collapsed objects have radial magnetic fields in the local co-rotating frame. The induced electromagnetic fields in the rest frame are quite different from that of the usual dipole fields. The strength of such induced fields are very strong and decrease with the square of distance. As a result, the energetic charged particles released during nucleon decay may be further accelerated for a rather long period and the resulting energy of such cosmic rays may be far beyond 1021 eV.
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    [1] Abu–Zayyad T et al. In: Proc. 26th Int Cosmic Ray Conf. Salt LakeCity, 3: 264 2 Afanasiev B N et al. In: Proc. Extremely High Energy Cosmic Rays, ed. M. Nagano, Tokyo Press, 1996, 32 3 Berezinskii V S et al. Astrophysics of Cosmic Rays (Amsterdam: North–Holland), 19904 Bhattacharjee P, Sigl G. Phys. Rep., 2000,327: 109 5 Blandford R D. In: Particle Physics and the Universe, ed L. Bergstrom, P. Carlson and C. Franss, Singapore: World Scientific, 20006 Blasi P, Epstein R I, Olinto A V. ApJ., 2000,533: L123 7 Biermann P L. In: Proceedings of thre international Workshop on Obsreving Ultra–High Energy Cosmic Ray fromSpace and Earth, August 2000, Mettepec, Puebla, Mexico. 2001, press8 Biermann P L, Strittmatter P A. ApJ., 1987,322: 643 9 Callan C. Phys.Rev., 1982, D25: 214110 Greisen.K, Phys. Rev. Lett., 1966,16: 748 11 Hillas A M. Ann. Rev. Astron. Astrophys., 1984,22: 42512 Kasuya M. Phys. Rev., 1982, D25: 99513 Litwin C, Rosner R. 2001, astro–ph/0104090 14 Olinto A V. 2000, astro–ph/000200615 PENG Q H. Astrophysics and Space Science, 1989,154: 27116 PENG Q H. In: High Energetic Physical Processes and Mechanism for Emission from Astrophysical Plasmas, IAU Symposium, 2000,195: 421 17 PENG Q H, CHOU C K. Astrophys. Space Science, 1998, 257: 14918 PENG QH, CHOU C K. ApJ, 2001,551: L2319 PENG Q H, LI Z, WANG D Y. Scientia Sinica, 1985,28: 970 20 彭秋和,王德熵,李宗云.天体物理学报,1986,6:249 21 Rubakov V. Nucl. Phys., 1983, B218: 240 22 Takeda M et al. Phys. Rev. Lett., 1998,81: 1163 23 Takeda M et al. ApJ., 1999,522: 225 24 Venkateson A, Miller M C, Olinto A V. ApJ., 1997,484: 323 25 Zatsepin G T, Kuzmin V A. Sov. Phys. JETP Lett., 1966,4: 78

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PENG Qiu-He. Where Do the Extra High Energy Cosmic Rays Come From A Model of Active Galactic Nuclei With Magnetic Monopoles[J]. Chinese Physics C, 2002, 26(S1): 104-111.
PENG Qiu-He. Where Do the Extra High Energy Cosmic Rays Come From A Model of Active Galactic Nuclei With Magnetic Monopoles[J]. Chinese Physics C, 2002, 26(S1): 104-111. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Where Do the Extra High Energy Cosmic Rays Come From A Model of Active Galactic Nuclei With Magnetic Monopoles

    Corresponding author: PENG Qiu-He,
  • Department of Astronomy, Nanjing University, Nanjing 210093, ChinaJoint Astrophysics Center of CAS -Beijing University, Beijing 100871, ChinaThe Open Laboratory for Cosmic Ray and High Energy Astrophysics, CAS, Beijing 100039, China
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 2002-06-24

Abstract: The origin and signature of ultra high-energy cosmic rays are still somewhat mysterious. In this paper, we present an effective acceleration mechanism for such ultra high-energy events based on supermassive stellar objects with saturation of magnetic monopoles of ‘t Hooft-Polyakov type in the universe. Catalyzed by magnetic monopoles, nucleons may decay to energetic charged particles and radiation, and can travel to great distance from their source because of the absence of horizon and central singularity of these supermassive stellar objects, due to Rubakov-Callan effect. These rapid rotating collapsed objects have radial magnetic fields in the local co-rotating frame. The induced electromagnetic fields in the rest frame are quite different from that of the usual dipole fields. The strength of such induced fields are very strong and decrease with the square of distance. As a result, the energetic charged particles released during nucleon decay may be further accelerated for a rather long period and the resulting energy of such cosmic rays may be far beyond 1021 eV.

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