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Magnetic Field Amplification in Hypermassive Neutron Stars via the Magnetorotational Instability

  • Daniel M. SiegelEmail author
  • Riccardo Ciolfi
Chapter
Part of the Springer Proceedings in Physics book series (SPPHY, volume 170)

Abstract

Mergers of binary neutron stars likely lead to the formation of a hypermassive neutron star (HMNS), which is metastable and eventually collapses to a black hole. This merger scenario is thought to explain the phenomenology of short gamma-ray bursts (SGRBs). The very high energies observed in SGRBs have been suggested to stem from neutrino-antineutrino annihilation and/or from very strong magnetic fields created during or after the merger by mechanisms like the magnetorotational instability. Here, we report on results that show for the first time the development of the magnetorotational instability in HMNSs in three-dimensional, fully general-relativistic magnetohydrodynamic simulations. This instability amplifies magnetic fields exponentially and could be a vital ingredient in solving the SGRB puzzle.

Notes

Acknowledgments

DMS greatly acknowledges the award of the first Karl Schwarzschild Prize sponsored by Springer for the best talk in the student section of the first Karl Schwarzschild Meeting, held in Frankfurt, Germany, July 2013. DMS also thanks the organizers of this meeting for travel support.

References

  1. 1.
    M. Shibata, K. Taniguchi, Phys. Rev. D 73, 064027 (2006)CrossRefADSGoogle Scholar
  2. 2.
    L. Rezzolla, L. Baiotti, B. Giacomazzo et al., Class. Quantum Grav. 27(11), 114105 (2010)MathSciNetCrossRefADSGoogle Scholar
  3. 3.
    G.M. Harry et al., Class. Quantum Grav. 27, 084006 (2010)MathSciNetCrossRefADSGoogle Scholar
  4. 4.
    T. Accadia, F. Acernese, F. Antonucci et al., Class. Quantum Grav. 28(11), 114002 (2011)CrossRefADSGoogle Scholar
  5. 5.
    T. Piran, Rev. Mod. Phys. 76, 1143 (2004)CrossRefADSGoogle Scholar
  6. 6.
    N. Gehrels, E. Ramirez-Ruiz, D.B. Fox, Ann. Rev. Astron. and Astrophys. 47, 567 (2009)CrossRefADSGoogle Scholar
  7. 7.
    S.D. Barthelmy, G. Chincarini, D.N. Burrows et al., Nature 438, 994 (2005)CrossRefADSGoogle Scholar
  8. 8.
    N. Gehrels, C.L. Sarazin, P.T. O’Brien et al., Nature 437, 851 (2005)CrossRefADSGoogle Scholar
  9. 9.
    L. Rezzolla, B. Giacomazzo, L. Baiotti et al., Astrophys. J. 732(11), L6 (2011)CrossRefADSGoogle Scholar
  10. 10.
    S. Rosswog, T. Piran, E. Nakar, Mon. Not. R. Astron. Soc. 430, 2585 (2013)CrossRefADSGoogle Scholar
  11. 11.
    R.H. Price, S. Rosswog, Science 312, 719 (2006)CrossRefADSGoogle Scholar
  12. 12.
    M. Anderson, E.W. Hirschmann, L. Lehner et al., Phys. Rev. Lett. 100, 191101 (2008)CrossRefADSGoogle Scholar
  13. 13.
    B. Giacomazzo, R. Perna, Astrophys. J. Lett. 771, L26 (2013)CrossRefADSGoogle Scholar
  14. 14.
    M.D. Duez, Y.T. Liu, S.L. Shapiro et al., Phys. Rev. D 73, 104015 (2006)CrossRefADSGoogle Scholar
  15. 15.
    M.D. Duez, Y.T. Liu, S.L. Shapiro et al., Phys. Rev. Lett. 96(3), 031101 (2006)CrossRefADSGoogle Scholar
  16. 16.
    P.B. Demorest, T. Pennucci, S.M. Ransom et al., Nature 467, 1081 (2010)CrossRefADSGoogle Scholar
  17. 17.
    J. Antoniadis, P.C.C. Freire, N. Wex et al., Science 340, 448 (2013)CrossRefADSGoogle Scholar
  18. 18.
    K. Hotokezaka, K. Kyutoku, H. Okawa et al., Phys. Rev. D 83(12), 124008 (2011)CrossRefADSGoogle Scholar
  19. 19.
    K. Hotokezaka, K. Kiuchi, K. Kyutoku et al., Phys. Rev. D 87(2), 024001 (2013)CrossRefADSGoogle Scholar
  20. 20.
    D.M. Siegel, R. Ciolfi, A.I. Harte et al., Phys. Rev. D 87(12), 121302(R) (2013)CrossRefADSGoogle Scholar
  21. 21.
    E.P. Velikhov, Sov. Phys. JETP 36, 995 (1959)Google Scholar
  22. 22.
    S. Chandrasekhar, Proc. Natl. Acad. Sci. 46, 253 (1960)zbMATHMathSciNetCrossRefADSGoogle Scholar
  23. 23.
    S.A. Balbus, J.F. Hawley, Astrophys. J. 376, 214 (1991)CrossRefADSGoogle Scholar
  24. 24.
    S.A. Balbus, Astrophys. J. 453, 380 (1995)CrossRefADSGoogle Scholar
  25. 25.
    M. Obergaulinger, P. Cerdá-Durán, E. Müller et al., Astron. Astrophys. 498, 241 (2009)CrossRefADSGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)PotsdamGermany

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