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Journal of the Korean Physical Society

, Volume 72, Issue 1, pp 1–5 | Cite as

Gravitational wave searches for aligned-spin binary neutron stars using nonspinning templates

  • Hee-Suk ChoEmail author
  • Chang-Hwan Lee
Article

Abstract

We study gravitational wave searches for merging binary neutron stars (NSs). We use nonspinning template waveforms towards the signals emitted from aligned-spin NS-NS binaries, in which the spins of the NSs are aligned with the orbital angular momentum. We use the TaylorF2 waveform model, which can generate inspiral waveforms emitted from aligned-spin compact binaries. We employ the single effective spin parameter χeff to represent the effect of two component spins (χ1, χ2) on the wave function. For a target system, we choose a binary consisting of the same component masses of 1.4M and consider the spins up to χ i = 0.4. We investigate fitting factors of the nonspinning templates to evaluate their efficiency in gravitational wave searches for the aligned-spin NS-NS binaries. We find that the templates can achieve the fitting factors exceeding 0.97 only for the signals in the range of −0.2 ≲ χeff ≲ 0. Therefore, we demonstrate the necessity of using aligned-spin templates not to lose the signals outside that range. We also show how much the recovered total mass can be biased from the true value depending on the spin of the signal.

Keywords

Gravitational waves Neutron star Compact Binary 

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References

  1. [1]
    B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration), Phys. Rev. Lett. 116, 061102 (2016).ADSMathSciNetCrossRefGoogle Scholar
  2. [2]
    B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration), Phys. Rev. Lett. 116, 241103 (2016).ADSCrossRefGoogle Scholar
  3. [3]
    B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration), Phys. Rev. Lett. 118, 221101 (2017).ADSCrossRefGoogle Scholar
  4. [4]
    B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration), Phys. Rev. Lett. 116, 241102 (2016).ADSMathSciNetCrossRefGoogle Scholar
  5. [5]
    B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration), Phys. Rev. X 6, 041014 (2016).Google Scholar
  6. [6]
    B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration), Phys. Rev. X 6, 041015 (2016).Google Scholar
  7. [7]
    B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration), Astrophys. J. 832, L21 (2016).ADSCrossRefGoogle Scholar
  8. [8]
    J. Abadie et al. (LIGO Scientific Collaboration), Class. Quantum Grav. 32, 074001 (2015).ADSCrossRefGoogle Scholar
  9. [9]
    F. Acernese et al., Class. Quantum Grav. 32, 024001 (2015).ADSCrossRefGoogle Scholar
  10. [10]
    Y. Aso et al. (The KAGRA Collaboration), Phys. Rev. D 88, 043007 (2013).ADSCrossRefGoogle Scholar
  11. [11]
    J. Abadie et al. (LIGO Scientific Collaboration and Virgo Collaboration), Class. Quantum Grav. 27, 173001 (2010).ADSCrossRefGoogle Scholar
  12. [12]
    J. M. Lattimer and M. Prakash, Phy. Repts. 442, 109 (2007).ADSCrossRefGoogle Scholar
  13. [13]
    M. Prakash (2013), [arXiv:1307.0397].Google Scholar
  14. [14]
    C-H. Lee, H-S. Cho, Y. M. Kim and H-Y. Park, J. Korean Phys. Soc. 59, 2118 (2011).CrossRefGoogle Scholar
  15. [15]
    C-H. Lee and H-S. Cho, Nuclear Physics A 928, 296 (2014).ADSCrossRefGoogle Scholar
  16. [16]
    T. A. Apostolatos, Phys. Rev. D 52, 605 (1995).ADSCrossRefGoogle Scholar
  17. [17]
    T. Dal Canton et al., Phys. Rev. D 90, 082004 (2014).ADSCrossRefGoogle Scholar
  18. [18]
    S. Privitera et al., Phys. Rev. D 89, 024003 (2014).ADSCrossRefGoogle Scholar
  19. [19]
    C. Capano, I. Harry, S. Privitera and A. Buonanno, Phys. Rev. D 93, 124007 (2016).ADSCrossRefGoogle Scholar
  20. [20]
    H-S. Cho, Phys. Rev. D 94, 124045 (2016).ADSCrossRefGoogle Scholar
  21. [21]
    D. A. Brown, I. Harry, A. Lundgren and A. H. Nitz, Phys. Rev. D 86, 084017 (2012).ADSCrossRefGoogle Scholar
  22. [22]
    P. Ajith, N. Fotopoulos, S. Privitera, A. Neunzert, N. Mazumder and A. J. Weinstein, Phys. Rev. D 89, 084041 (2014).ADSCrossRefGoogle Scholar
  23. [23]
    I. W. Harry, A. H. Nitz, D. A. Brown, A. P. Lundgren, E. Ochsner and D. Keppel, Phys. Rev. D 89, 024010 (2014).ADSCrossRefGoogle Scholar
  24. [24]
    T. Dal Canton, A. P. Lundgren and A. B. Nielsen, Phys. Rev. D 91, 062010 (2015).ADSCrossRefGoogle Scholar
  25. [25]
    L. Blanchet, Living Rev. Relativity 17, 2 (2014).ADSCrossRefGoogle Scholar
  26. [26]
    Advanced LIGO anticipated sensitivity curves, https://dcc.ligo.org/LIGO-T0900288/public.Google Scholar
  27. [27]
    H-S. Cho and C-H. Lee, Class. Quantum Grav. 31, 235009 (2014).ADSCrossRefGoogle Scholar
  28. [28]
    H-S. Cho, E. Ochsner, R. O’Shaughnessy, C. Kim and C-H. Lee, Phys. Rev. D 87, 024004 (2013).ADSCrossRefGoogle Scholar
  29. [29]
    B. Allen, W. G. Anderson, P. R. Brady, D. A. Brown and J. D. E. Creighton, Phys. Rev. D 85, 122006 (2012).ADSCrossRefGoogle Scholar
  30. [30]
    C. Cutler and M. Vallisneri, Phys. Rev. D 76, 104018 (2007).ADSCrossRefGoogle Scholar
  31. [31]
    M. Favata, Phys. Rev. Lett. 112, 101101 (2014).ADSCrossRefGoogle Scholar
  32. [32]
    H-S. Cho, Class. Quantum Grav. 32, 235007 (2015).ADSCrossRefGoogle Scholar
  33. [33]
    H-S. Cho, Class. Quantum Grav. 32, 215023 (2015).ADSCrossRefGoogle Scholar
  34. [34]
    H-S. Cho, J. Korean Phys. Soc. 66, 1637 (2015).Google Scholar
  35. [35]
    K. G. Arun, A. Buonanno, G. Faye and E. Ochsner, Phys. Rev. D 79, 104023 (2009).ADSCrossRefGoogle Scholar
  36. [36]
    J. W. T. Hessels, S. M. Ransom, I. H. Stairs, P. C. C. Freire, V. M. Kaspi and F. Camilo, Science 311, 1901 (2006).ADSCrossRefGoogle Scholar
  37. [37]
    M. Kramer and N. Wex, Class. Quantum Grav. 26, 073001 (2009).ADSCrossRefGoogle Scholar
  38. [38]
    P. Ajith, Phys. Rev. D 84, 084037 (2011).ADSCrossRefGoogle Scholar
  39. [39]
    E. Poisson and C. M. Will, Phys. Rev. D 52, 848 (1995).ADSCrossRefGoogle Scholar
  40. [40]
    T. Damour, Phys. Rev. D 64, 124013 (2001).ADSMathSciNetCrossRefGoogle Scholar
  41. [41]
    L. Santamaria et al., Phys. Rev. D 82, 064016 (2010).ADSCrossRefGoogle Scholar
  42. [42]
    P. Ajith et al., Phys. Rev. Lett. 106, 241101 (2011).ADSCrossRefGoogle Scholar
  43. [43]
    S. Khan et al., Phys. Rev. D 93, 044007 (2016).ADSCrossRefGoogle Scholar
  44. [44]
    H-S. Cho, J. Korean Phys. Soc. 70, 735 (2017).ADSCrossRefGoogle Scholar
  45. [45]
    M. Campanelli, C. Lousto and Y. Zlochower, Phys. Rev. D 74, 041501 (2006).ADSCrossRefGoogle Scholar

Copyright information

© The Korean Physical Society 2018

Authors and Affiliations

  1. 1.Department of PhysicsPusan National UniversityBusanKorea

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