Papers
Topics
Authors
Recent
Search
2000 character limit reached

Quasi-equilibrium configurations of binary systems of dark matter admixed neutron stars

Published 9 Jan 2023 in gr-qc, astro-ph.HE, and nucl-th | (2301.03568v2)

Abstract: Using an adapted version of the SGRID code, we construct for the first time consistent quasi-equilibrium configurations for a binary system consisting of two neutron stars in which each is admixed with dark matter. The stars are modelled as a system of two non-interacting fluids minimally coupled to gravity. For the fluid representing baryonic matter the SLy equation of state is used, whereas the second fluid, which corresponds to dark matter, is described using the equation of state of a degenerate Fermi gas. We consider two different scenarios for the distribution of the dark matter. In the first scenario the dark matter is confined to the core of the star, whereas in the second scenario the dark matter extends beyond the surface of the baryonic matter, forming a halo around the baryonic star. The presence of dark matter alters the star's reaction to the companion's tidal forces, which we investigate in terms of the coordinate deformation and mass shedding parameters. The constructed quasi-equilibrium configurations mark the first step towards consistent numerical-relativity simulations of dark matter admixed neutron star binaries.

Definition Search Book Streamline Icon: https://streamlinehq.com
References (63)
  1. I. Goldman and S. Nussinov, Weakly Interacting Massive Particles and Neutron Stars, Phys. Rev. D 40, 3221 (1989).
  2. G. Narain, J. Schaffner-Bielich, and I. N. Mishustin, Compact stars made of fermionic dark matter, Phys. Rev. D 74, 063003 (2006), arXiv:astro-ph/0605724 [astro-ph] .
  3. P. Ciarcelluti and F. Sandin, Have neutron stars a dark matter core?, Phys. Lett. B 695, 19 (2011), arXiv:1005.0857 [astro-ph.HE] .
  4. S. C. Leung, M. C. Chu, and L. M. Lin, Dark-matter admixed neutron stars, Phys. Rev. D 84, 107301 (2011), arXiv:1111.1787 [astro-ph.CO] .
  5. S. C. Leung, M. C. Chu, and L. M. Lin, Equilibrium Structure and Radial Oscillations of Dark Matter Admixed Neutron Stars, Phys. Rev. D 85, 103528 (2012), arXiv:1205.1909 [astro-ph.CO] .
  6. M. I. Gresham, H. K. Lou, and K. M. Zurek, Nuclear Structure of Bound States of Asymmetric Dark Matter, Phys. Rev. D 96, 096012 (2017), arXiv:1707.02313 [hep-ph] .
  7. A. E. Nelson, S. Reddy, and D. Zhou, Dark halos around neutron stars and gravitational waves, J. Cosm. Astrop. Phys. 2019, 012 (2019), arXiv:1803.03266 [hep-ph] .
  8. O. Ivanytskyi, V. Sagun, and I. Lopes, Neutron stars: New constraints on asymmetric dark matter, Phys. Rev. D 102, 063028 (2020), arXiv:1910.09925 [astro-ph.HE] .
  9. A. Das, T. Malik, and A. C. Nayak, Dark matter admixed neutron star properties in the light of gravitational wave observations: a two fluid approach (2020b), arXiv:2011.01318 [nucl-th] .
  10. K.-L. Leung, M.-c. Chu, and L.-M. Lin, Tidal deformability of dark matter admixed neutron stars, Phys. Rev. D 105, 123010 (2022), arXiv:2207.02433 [astro-ph.HE] .
  11. S. Shakeri and D. R. Karkevandi, Bosonic Dark Matter in Light of the NICER Precise Mass-Radius Measurements (2022), arXiv:2210.17308 [astro-ph.HE] .
  12. M. Bezares, D. Viganò, and C. Palenzuela, Gravitational wave signatures of dark matter cores in binary neutron star mergers by using numerical simulations, Phys. Rev. D 100, 044049 (2019), arXiv:1905.08551 [gr-qc] .
  13. N. Andersson and G. L. Comer, Relativistic fluid dynamics: physics for many different scales, Living Reviews in Relativity 24, 1 (2021), arXiv:2008.12069 [gr-qc] .
  14. N. Andersson, A multifluid perspective on multimessenger modelling (2021), arXiv:2103.10220 [gr-qc] .
  15. E. Gourgoulhon, 3+1 Formalism in General Relativity (Springer, Berlin, 2012) gr-qc/0703035 .
  16. T. W. Baumgarte and S. L. Shapiro, Numerical Relativity: Solving Einstein’s Equations on the Computer (Cambridge University Press, Cambridge, 2010).
  17. W. Tichy, The initial value problem as it relates to numerical relativity, Rept. Prog. Phys. 80, 026901 (2017), arXiv:1610.03805 [gr-qc] .
  18. R. C. Tolman, Static solutions of Einstein’s field equations for spheres of fluid, Phys. Rev. 55, 364 (1939).
  19. J. R. Oppenheimer and G. M. Volkoff, On massive neutron cores, Phys. Rev. 55, 374 (1939).
  20. C. Kouvaris, The Dark Side of Neutron Stars, Adv. High Energy Phys. 2013, 856196 (2013), arXiv:1308.3222 [astro-ph.HE] .
  21. C. Kouvaris and P. Tinyakov, Can neutron stars constrain dark matter?, Phys. Rev. D 82, 063531 (2010), arXiv:1004.0586 [astro-ph.GA] .
  22. A. Del Popolo, M. Le Delliou, and M. Deliyergiyev, Neutron Stars and Dark Matter, Universe 6, 222 (2020).
  23. T. T. Q. Nguyen and T. M. P. Tait, Bounds on long-lived dark matter mediators from neutron stars, Phys. Rev. D 107, 115016 (2023), arXiv:2212.12547 [hep-ph] .
  24. G. Bertone and M. Fairbairn, Compact Stars as Dark Matter Probes, Phys. Rev. D 77, 043515 (2008), arXiv:0709.1485 [astro-ph] .
  25. M. Baryakhtar et al., Dark Matter In Extreme Astrophysical Environments, in 2022 Snowmass Summer Study (2022) arXiv:2203.07984 [hep-ph] .
  26. C. Kouvaris, Wimp annihilation and cooling of neutron stars, Phys. Rev. D 77, 023006 (2008), arXiv:0708.2362 [astro-ph] .
  27. A. de Lavallaz and M. Fairbairn, Neutron stars as dark matter probes, Phys. Rev. D 81, 123521 (2010), arXiv:1004.0629 [astro-ph.GA] .
  28. K. Hamaguchi, N. Nagata, and K. Yanagi, Dark Matter Heating vs. Rotochemical Heating in Old Neutron Stars, Phys. Lett. B 795, 484 (2019), arXiv:1905.02991 [hep-ph] .
  29. M. Á. Pérez-García and J. Silk, Dark matter seeding and the kinematics and rotation of neutron stars, Phys. Lett. B 711, 6 (2012), arXiv:1111.2275 [astro-ph.CO] .
  30. A. Sedrakian, Axion cooling of neutron stars, Phys. Rev. D 93, 065044 (2016), arXiv:1512.07828 [astro-ph.HE] .
  31. A. Sedrakian, Axion cooling of neutron stars. II. Beyond hadronic axions, Phys. Rev. D 99, 043011 (2019), arXiv:1810.00190 [astro-ph.HE] .
  32. T. Dietrich and K. Clough, Cooling binary neutron star remnants via nucleon-nucleon-axion bremsstrahlung, Phys. Rev. D 100, 083005 (2019), arXiv:1909.01278 [gr-qc] .
  33. F. Douchin and P. Haensel, A unified equation of state of dense matter and neutron star structure, Astron. Astrophys. 380, 151 (2001), arXiv:astro-ph/0111092 .
  34. E. Fonseca et al., Refined Mass and Geometric Measurements of the High-mass PSR J0740+6620, Astrophys. J. Lett. 915, L12 (2021), arXiv:2104.00880 [astro-ph.HE] .
  35. T. E. Riley et al., A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation, Astrophys. J. Lett. 887, L21 (2019), arXiv:1912.05702 [astro-ph.HE] .
  36. G. Raaijmakers et al., Constraining the dense matter equation of state with joint analysis of NICER and LIGO/Virgo measurements, Astrophys. J. Lett. 893, L21 (2020), arXiv:1912.11031 [astro-ph.HE] .
  37. M. C. Miller et al., The Radius of PSR J0740+6620 from NICER and XMM-Newton Data, Astrophys. J. Lett. 918, L28 (2021), arXiv:2105.06979 [astro-ph.HE] .
  38. T. E. Riley et al., A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy, Astrophys. J. Lett. 918, L27 (2021), arXiv:2105.06980 [astro-ph.HE] .
  39. B. P. Abbott et al. (LIGO Scientific, Virgo), Properties of the binary neutron star merger GW170817, Phys. Rev. X 9, 011001 (2019), arXiv:1805.11579 [gr-qc] .
  40. B. P. Abbott et al. (LIGO Scientific, Virgo), GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼3.4⁢M⊙similar-toabsent3.4subscript𝑀direct-product\sim 3.4M_{\odot}∼ 3.4 italic_M start_POSTSUBSCRIPT ⊙ end_POSTSUBSCRIPT, Astrophys. J. Lett. 892, L3 (2020), arXiv:2001.01761 [astro-ph.HE] .
  41. J. Billard et al., Direct detection of dark matter—APPEC committee report*, Rept. Prog. Phys. 85, 056201 (2022), arXiv:2104.07634 [hep-ex] .
  42. W. Tichy, Constructing quasi-equilibrium initial data for binary neutron stars with arbitrary spins, Phys. Rev. D 86, 064024 (2012), arXiv:1209.5336 [gr-qc] .
  43. K. Uryū and A. Tsokaros, New code for equilibriums and quasiequilibrium initial data of compact objects, Phys.Rev. D85, 064014 (2012), arXiv:1108.3065 [gr-qc] .
  44. D. Wittman, N. Golovich, and W. A. Dawson, The Mismeasure of Mergers: Revised Limits on Self-interacting Dark Matter in Merging Galaxy Clusters, Astrophys. J. 869, 104 (2018), arXiv:1701.05877 [astro-ph.CO] .
  45. G. B. Cook, Initial data for numerical relativity, Living Reviews in Relativity 3, 10.12942/lrr-2000-5 (2000), arXiv:gr-qc/0007085 [gr-qc] .
  46. W. Tichy, Initial data for binary neutron stars with arbitrary spins, Phys. Rev. D 84, 024041 (2011), arXiv:1107.1440 [gr-qc] .
  47. K. Kyutoku, M. Shibata, and K. Taniguchi, Reducing orbital eccentricity in initial data of binary neutron stars, Phys. Rev. D 90, 064006 (2014), arXiv:1405.6207 [gr-qc] .
  48. G. Schäfer and N. Wex, Phys. Lett. A 174, 196 (1993).
  49. W. Tichy and B. Brügmann, Quasi-equilibrium binary black hole sequences for puncture data derived from helical killing vector conditions, Phys. Rev. D 69, 024006 (2004), arXiv:gr-qc/0307027 [gr-qc] .
  50. F. Swesty, Thermodynamically consistent interpolation for equation of state tables, Journal of Computational Physics 127, 118 (1996).
  51. D. Page, U. Geppert, and F. Weber, The Cooling of compact stars, Nucl. Phys. A 777, 497 (2006), arXiv:astro-ph/0508056 .
  52. F. Gulminelli and A. R. Raduta, Unified treatment of subsaturation stellar matter at zero and finite temperature, Phys. Rev. C 92, 055803 (2015), arXiv:1504.04493 [nucl-th] .
  53. A. Raduta and F. Gulminelli, Nuclear statistical equilibrium equation of state for core collapse, Nuclear Physics A 983, 252 (2019), EoS table available at: https://compose.obspm.fr/eos/123, arXiv:1807.06871 [nucl-th] .
  54. A. Bauswein, H.-T. Janka, and R. Oechslin, Testing approximations of thermal effects in neutron star merger simulations, Phys. Rev. D 82, 084043 (2010), arXiv:1006.3315 [astro-ph.SR] .
  55. M. Shibata, A relativistic formalism for computation of irrotational binary stars in quasi equilibrium states, Phys. Rev. D 58, 024012 (1998), arXiv:gr-qc/9803085 .
  56. S. W. Hawking and G. F. R. Ellis, The Large Scale Structure of Space-Time (Cambridge University Press, Cambridge (UK), 1973).
  57. J. P. Ostriker and J. E. Gunn, On the Nature of Pulsars. I. Theory, Astrophys. J. 157, 1395 (1969).
  58. A. Rogers and S. Safi-Harb, On the diversity of compact objects within supernova remnants – II. energy-loss mechanisms, Monthly Notices of the Royal Astronomical Society 465, 383 (2016), arXiv:1610.04685 [astro-ph.HE] .
  59. R. Arnowitt, S. Deser, and C. W. Misner, The dynamics of general relativity, in Gravitation: An Introduction to Current Research, edited by L. Witten (Wiley, New York, 1962) pp. 227–265.
  60. G. L. Comer and R. Joynt, Relativistic mean field model for entrainment in general relativistic superfluid neutron stars, Phys. Rev. D 68, 023002 (2003), arXiv:gr-qc/0212083 [gr-qc] .
  61. R. Prix, J. Novak, and G. L. Comer, Relativistic numerical models for stationary superfluid neutron stars, Phys. Rev. D 71, 043005 (2005), arXiv:gr-qc/0410023 [gr-qc] .
  62. N. Chamel, Two-fluid models of superfluid neutron star cores, Monthly Notices of the Royal Astronomical Society 388, 737 (2008), arXiv:0805.1007 [astro-ph] .
  63. N. Andersson, T. Sidery, and G. L. Comer, Mutual friction in superfluid neutron stars, Monthly Notices of the Royal Astronomical Society 368, 162 (2006), arXiv:astro-ph/0510057 [astro-ph] .
Citations (11)
View on Semantic Scholar

Summary

No one has generated a summary of this paper yet.

Sign Up to Summarize

Paper to Video (Beta)

No one has generated a video about this paper yet.

Sign Up to Generate All Videos Subscribe on YouTube

Whiteboard

No one has generated a whiteboard explanation for this paper yet.

Sign Up to Generate

Open Problems

We haven't generated a list of open problems mentioned in this paper yet.

Generate Now

Continue Learning

We haven't generated follow-up questions for this paper yet.

Generate Now

Collections

Sign up for free to add this paper to one or more collections.

Sign Up