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Relativistic simulations of eccentric binary neutron star mergers: One-arm spiral instability and effects of neutron star spin

William E. East1, Vasileios Paschalidis2, Frans Pretorius2, and Stuart L. Shapiro3,4

  • 1Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
  • 2Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
  • 3Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
  • 4Department of Astronomy & NCSA, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

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Phys. Rev. D 93, 024011 – Published 8 January, 2016

DOI: https://doi.org/10.1103/PhysRevD.93.024011

Abstract

We perform general-relativistic hydrodynamical simulations of dynamical capture binary neutron star mergers, emphasizing the role played by the neutron star spin. Dynamical capture mergers may take place in globular clusters, as well as other dense stellar systems, where most neutron stars have large spins. We find significant variability in the merger outcome as a function of initial neutron star spin. For cases where the spin is aligned with the orbital angular momentum, the additional centrifugal support in the remnant hypermassive neutron star can prevent the prompt collapse to a black hole, while for antialigned cases the decreased total angular momentum can facilitate the collapse to a black hole. We show that even moderate spins can significantly increase the amount of ejected material, including the amount unbound with velocities greater than half the speed of light, leading to brighter electromagnetic signatures associated with kilonovae and interaction of the ejecta with the interstellar medium. Furthermore, we find that the initial neutron star spin can strongly affect the already rich phenomenology in the postmerger gravitational wave signatures that arise from the oscillation modes of the hypermassive neutron star. In several of our simulations, the resulting hypermassive neutron star develops the one-arm (m=1) spiral instability, the most pronounced cases being those with small but non-negligible neutron star spins. For long-lived hypermassive neutron stars, the presence of this instability leads to improved prospects for detecting these events through gravitational waves, and thus may give information about the neutron star equation of state.

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References (120)

  1. A. Abramovici et al., Science 256, 325 (1992).
  2. B. Caron et al., Classical Quantum Gravity 14, 1461 (1997).
  3. K. Somiya et al. (KAGRA Collaboration), Classical Quantum Gravity 29, 124007 (2012).
  4. B. M. Hansen and M. Lyutikov, Mon. Not. R. Astron. Soc. 322, 695 (2001).
  5. S. T. McWilliams and J. Levin, Astrophys. J. 742, 90 (2011).
  6. V. Paschalidis, Z. B. Etienne, and S. L. Shapiro, Phys. Rev. D 88, 021504 (2013).
  7. C. Palenzuela, L. Lehner, M. Ponce, S. L. Liebling, M. Anderson, D. Neilsen, and P. Motl, Phys. Rev. Lett. 111, 061105 (2013).
  8. M. Ponce, C. Palenzuela, L. Lehner, and S. L. Liebling, Phys. Rev. D 90, 044007 (2014).
  9. D. Tsang, J. S. Read, T. Hinderer, A. L. Piro, and R. Bondarescu, Phys. Rev. Lett. 108, 011102 (2012).
  10. D. Tsang, Astrophys. J. 777, 103 (2013).
  11. B. D. Metzger and E. Berger, Astrophys. J. 746, 48 (2012).
  12. E. Nakar and T. Piran, Nature (London) 478, 82 (2011).
  13. K. Kyutoku, K. Ioka, and M. Shibata, Mon. Not. R. Astron. Soc. 437, L6 (2014).
  14. B. D. Metzger, A. Bauswein, S. Goriely, and D. Kasen, Mon. Not. R. Astron. Soc. 446, 1115 (2015).
  15. A. e. a. Rau, Publ. Astron. Soc. Pac. 121, 1334 (2009).
  16. N. Kaiser et al., Pan-STARRS: A large synoptic survey telescope array, in Survey and Other Telescope Technologies and Discoveries, edited by J. A. Tyson and S. Wolff, SPIE Proc. Vol. 4836 (SPIE-International Society for Optical Engineering, Bellingham, WA, 2002), pp. 154–164.
  17. LSST Dark Energy Science Collaboration, arXiv:1211.0310.
  18. T. Piran, Rev. Mod. Phys. 76, 1143 (2005).
  19. P. Meszaros, Rep. Prog. Phys. 69, 2259 (2006).
  20. V. Paschalidis, M. Ruiz, and S. L. Shapiro, Astrophys. J. Lett. 806, L14 (2015).
  21. S. Rosswog, F. K. Thielemann, M. B. Davies, W. Benz, and T. Piran, Coalescing neutron stars: A solution to the R-process problem?, in Nuclear Astrophysics, edited by W. Hillebrandt and E. Muller (1998), p. 103.
  22. J. A. Faber and F. A. Rasio, Living Rev. Relativity 15, 8 (2012).
  23. T. W. Baumgarte and S. L. Shapiro, Numerical Relativity: Solving Einstein’s Equations on the Computer (Cambridge University Press, 2010).
  24. V. Paschalidis, Z. B. Etienne, and S. L. Shapiro, Phys. Rev. D 86, 064032 (2012).
  25. D. Neilsen, S. L. Liebling, M. Anderson, L. Lehner, E. O’Connor, and C. Palenzuela, Phys. Rev. D 89, 104029 (2014).
  26. B. Giacomazzo, J. Zrake, P. Duffell, A. I. MacFadyen, and R. Perna, Astrophys. J. 809, 39 (2015).
  27. W. Kastaun and F. Galeazzi, Phys. Rev. D 91, 064027 (2015).
  28. K. Dionysopoulou, D. Alic, and L. Rezzolla, Phys. Rev. D 92, 084064 (2015).
  29. A. Bauswein and N. Stergioulas, Phys. Rev. D 91, 124056 (2015).
  30. Y. Sekiguchi, K. Kiuchi, K. Kyutoku, and M. Shibata, Phys. Rev. D 91, 064059 (2015).
  31. T. Dietrich, S. Bernuzzi, M. Ujevic, and B. Bruegmann, Phys. Rev. D 91, 124041 (2015).
  32. C. Palenzuela et al., arXiv:1505.01607.
  33. R. M. O’Leary, B. Kocsis, and A. Loeb, Mon. Not. R. Astron. Soc. 395, 2127 (2009).
  34. B. Kocsis and J. Levin, Phys. Rev. D 85, 123005 (2012).
  35. W. H. Lee, E. Ramirez-Ruiz, and G. van de Ven, Astrophys. J. 720, 953 (2010).
  36. J. Samsing, M. MacLeod, and E. Ramirez-Ruiz, Astrophys. J. 784, 71 (2014).
  37. C. L. Rodriguez, M. Morscher, B. Pattabiraman, S. Chatterjee, C.-J. Haster, and F. A. Rasio, Phys. Rev. Lett. 115, 051101 (2015).
  38. W. E. East, S. T. McWilliams, J. Levin, and F. Pretorius, Phys. Rev. D 87, 043004 (2013).
  39. R. Gold, S. Bernuzzi, M. Thierfelder, B. Brügmann, and F. Pretorius, Phys. Rev. D 86, 121501 (2012).
  40. W. E. East and F. Pretorius, Astrophys. J. Lett. 760, L4 (2012).
  41. B. Sathyaprakash et al., Classical Quantum Gravity 29, 124013 (2012).
  42. J. Grindlay, S. Portegies Zwart, and S. McMillan, Nat. Phys. 2, 116 (2006).
  43. R. Narayan, B. Paczynski, and T. Piran, Astrophys. J. 395, L83 (1992).
  44. N. G. et al., Nature (London) 437, 851 (2005).
  45. W. H. Lee, E. Ramirez-Ruiz, and J. Granot, Astrophys. J. Lett. 630, L165 (2005).
  46. T. A. Thompson, Astrophys. J. 741, 82 (2011).
  47. B. Katz, S. Dong, and R. Malhotra, Phys. Rev. Lett. 107, 181101 (2011).
  48. N. Seto, Phys. Rev. Lett. 111, 061106 (2013).
  49. F. Antonini et al., arXiv:1509.05080.
  50. B. C. Stephens, W. E. East, and F. Pretorius, Astrophys. J. Lett. 737, L5 (2011).
  51. W. E. East, F. Pretorius, and B. C. Stephens, Phys. Rev. D 85, 124009 (2012).
  52. W. H. Lee, E. Ramirez-Ruiz, and G. van de Ven, Astrophys. J. 720, 953 (2010).
  53. S. Rosswog, T. Piran, and E. Nakar, Mon. Not. R. Astron. Soc. 430, 2585 (2013).
  54. W. E. East, V. Paschalidis, and F. Pretorius, Astrophys. J. Lett. 807, L3 (2015).
  55. http://www.naic.edu/~pfreire/GCpsr.html.
  56. F. Verbunt and P. Hut, The globular cluster population of x-ray binaries, in The Origin and Evolution of Neutron Stars, edited by D. J. Helfand and J.-H. Huang, IAU Symposium Vol. 125 (1987), p. 187.
  57. F. Lamb and W. Yu, Spin rates and magnetic fields of millisecond pulsars, in Binary Radio Pulsars, edited by F. A. Rasio and I. H. Stairs, Astronomical Society of the Pacific Conference Series Vol. 328 (2005), p. 299.
  58. P. Ghosh and F. K. Lamb, Astrophys. J. 234, 296 (1979).
  59. T. M. Tauris, N. Langer, and M. Kramer, Mon. Not. R. Astron. Soc. 425, 1601 (2012).
  60. B. A. Jacoby, P. B. Cameron, F. A. Jenet, S. B. Anderson, R. N. Murty, and S. R. Kulkarni, Astrophys. J. Lett. 644, L113 (2006).
  61. R. S. Lynch, P. C. C. Freire, S. M. Ransom, and B. A. Jacoby, Astrophys. J. 745, 109 (2012).
  62. W. Tichy, Phys. Rev. D 84, 024041 (2011).
  63. S. Bernuzzi, T. Dietrich, W. Tichy, and B. Bruegmann, Phys. Rev. D 89, 104021 (2014).
  64. T. Dietrich, N. Moldenhauer, N. K. Johnson-McDaniel, S. Bernuzzi, C. M. Markakis, B. Brügmann, and W. Tichy, Phys. Rev. D 92, 124007 (2015).
  65. N. Tacik et al., Phys. Rev. D 92, 124012 (2015).
  66. P. Tsatsin and P. Marronetti, Phys. Rev. D 88, 064060 (2013).
  67. W. Kastaun, F. Galeazzi, D. Alic, L. Rezzolla, and J. A. Font, Phys. Rev. D 88, 021501 (2013).
  68. A. Bauswein, N. Stergioulas, and H.-T. Janka, arXiv:1508.05493.
  69. V. Paschalidis, W. E. East, F. Pretorius, and S. L. Shapiro, arXiv:1510.03432.
  70. J. M. Centrella, K. C. B. New, L. L. Lowe, and J. D. Brown, Astrophys. J. Lett. 550, L193 (2001).
  71. M. Saijo, T. W. Baumgarte, and S. L. Shapiro, Astrophys. J. 595, 352 (2003).
  72. A. L. Watts, N. Andersson, and D. I. Jones, Astrophys. J. Lett. 618, L37 (2005).
  73. M. Saijo and S. Yoshida, Mon. Not. R. Astron. Soc. 368, 1429 (2006).
  74. M. Shibata, S. Karino, and Y. Eriguchi, Mon. Not. R. Astron. Soc. 334, L27 (2002).
  75. M. Shibata, S. Karino, and Y. Eriguchi, Mon. Not. R. Astron. Soc. 343, 619 (2003).
  76. S. Ou and J. E. Tohline, Astrophys. J. 651, 1068 (2006).
  77. G. Corvino, L. Rezzolla, S. Bernuzzi, R. De Pietri, and B. Giacomazzo, Classical Quantum Gravity 27, 114104 (2010).
  78. C. D. Muhlberger, F. H. Nouri, M. D. Duez, F. Foucart, L. E. Kidder, C. D. Ott, M. A. Scheel, B. Szilágyi, and S. A. Teukolsky, Phys. Rev. D 90, 104014 (2014).
  79. C. D. Ott, S. Ou, J. E. Tohline, and A. Burrows, Astrophys. J. Lett. 625, L119 (2005).
  80. C. D. Ott, H. Dimmelmeier, A. Marek, H.-T. Janka, I. Hawke, B. Zink, and E. Schnetter, Phys. Rev. Lett. 98, 261101 (2007).
  81. T. Kuroda, T. Takiwaki, and K. Kotake, Phys. Rev. D 89, 044011 (2014).
  82. W. E. East, F. Pretorius, and B. C. Stephens, Phys. Rev. D 85, 124010 (2012).
  83. W. E. East, F. M. Ramazanoglu, and F. Pretorius, Phys. Rev. D 86, 104053 (2012).
  84. G. B. Cook, S. L. Shapiro, and S. A. Teukolsky, Astrophys. J. 424, 823 (1994).
  85. G. B. Cook, S. L. Shapiro, and S. A. Teukolsky, Astrophys. J. 422, 227 (1994).
  86. J. S. Read, C. Markakis, M. Shibata, K. Uryū, J. D. E. Creighton, and J. L. Friedman, Phys. Rev. D 79, 124033 (2009).
  87. I. A. Morrison, T. W. Baumgarte, and S. L. Shapiro, Astrophys. J. 610, 941 (2004).
  88. M. Shibata, T. W. Baumgarte, and S. L. Shapiro, Astrophys. J. 542, 453 (2000).
  89. N. Stergioulas, Living Rev. Relativity 6, 3 (2003).
  90. K. Kiuchi, M. Shibata, and S. Yoshida, Phys. Rev. D 78, 024029 (2008).
  91. Y. Sekiguchi, K. Kiuchi, K. Kyutoku, and M. Shibata, Phys. Rev. Lett. 107, 051102 (2011).
  92. K. Taniguchi and E. Gourgoulhon, Phys. Rev. D 68, 124025 (2003).
  93. M. Turner, Astrophys. J. 216, 610 (1977).
  94. D. Shoemaker, Advanced LIGO anticipated sensitivity curves, 2011, https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=2974.
  95. S. Hild et al., Classical Quantum Gravity 28, 094013 (2011).
  96. M. Shibata and K. Taniguchi, Phys. Rev. D 73, 064027 (2006).
  97. L. Baiotti, B. Giacomazzo, and L. Rezzolla, Phys. Rev. D 78, 084033 (2008).
  98. K. Kiuchi, K. Kyutoku, Y. Sekiguchi, M. Shibata, and T. Wada, Phys. Rev. D 90, 041502 (2014).
  99. L.-X. Li and B. Paczynski, Astrophys. J. 507, L59 (1998).
  100. S. R. Kulkarni, arXiv:astro-ph/0510256.
  101. B. D. Metzger, G. Martínez-Pinedo, S. Darbha, E. Quataert, A. Arcones, D. Kasen, R. Thomas, P. Nugent, I. V. Panov, and N. T. Zinner, Mon. Not. R. Astron. Soc. 406, 2650 (2010).
  102. J. Barnes and D. Kasen, Astrophys. J. 775, 18 (2013).
  103. D. Kasen, N. R. Badnell, and J. Barnes, Astrophys. J. 774, 25 (2013).
  104. J. M. Lattimer and D. N. Schramm, Astrophys. J. Lett. 192, L145 (1974).
  105. T. Fischer, S. C. Whitehouse, A. Mezzacappa, F.-K. Thielemann, and M. Liebendörfer, Astron. Astrophys. 517, A80 (2010).
  106. A. Arcones and H.-T. Janka, Astron. Astrophys. 526, A160 (2011).
  107. A. Wallner et al., Nat. Commun. 6, 5956 (2015).
  108. E. Ramirez-Ruiz, M. Trenti, M. MacLeod, L. F. Roberts, W. H. Lee, and M. I. Saladino-Rosas, Astrophys. J. Lett. 802, L22 (2015).
  109. Y.-Z. Qian, Astrophys. J. Lett. 534, L67 (2000).
  110. J. Abadie et al., Classical Quantum Gravity 27, 173001 (2010).
  111. N. Stergioulas, A. Bauswein, K. Zagkouris, and H.-T. Janka, Mon. Not. R. Astron. Soc. 418, 427 (2011).
  112. K. Takami, L. Rezzolla, and L. Baiotti, Phys. Rev. Lett. 113, 091104 (2014).
  113. K. Takami, L. Rezzolla, and L. Baiotti, Phys. Rev. D 91, 064001 (2015).
  114. A. Bauswein, N. Stergioulas, and H.-T. Janka, arXiv:1503.08769.
  115. J. Zrake and A. I. MacFadyen, Astrophys. J. Lett. 769, L29 (2013).
  116. M. D. Duez, Y. T. Liu, S. L. Shapiro, M. Shibata, and B. C. Stephens, Phys. Rev. D 73, 104015 (2006).
  117. K. Kiuchi, P. Cerda-Duran, K. Kyutoku, Y. Sekiguchi, and M. Shibata, Phys. Rev. D 92, 124034 (2015).
  118. S. L. Shapiro, Astrophys. J. 544, 397 (2000).
  119. B. Yang, Z.-P. Jin, X. Li, S. Covino, X.-Z. Zheng, K. Hotokezaka, Y.-Z. Fan, T. Piran, and D.-M. Wei, Nat. Commun. 6, 7323 (2015).
  120. C. Palenzuela, S. L. Liebling, D. Neilsen, L. Lehner, O.  L. Caballero, E. O’Connor, and M. Anderson, Phys. Rev. D 92, 044045 (2015).

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Phys. Rev. D 93, 024011– Published 8 January, 2016
  • Received 2 November 2015
Article part of CHORUS

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