Advertisement

DECONFINEMENT PHASE TRANSITION IN RELATIVISTIC NEUTRON STAR MERGERS

  • G. Poghosyan
  • R. Oechslin
  • K. Uryū
  • F. K. Thielemann
Conference paper
Part of the NATO Science Series II: Mathematics, Physics and Chemistry book series (NAII, volume 197)

Abstract

We consider the influence of the deconfinement phase transition on gravitational waves (GW) emitted in a binary neutron star merger. We perform 3D hydrodynamic simulations based on the conformally flat approximation to general relativity and the GW signal extracted up to quadrupole order. We vary the initial constituent masses of the binary by use of physically-motivated equations of state (EoS) at zero temperature in two ways - allowing stellar matter to undergo or not the hadron-quark phase transition.

Keywords

Neutron Star Gravitational Wave Compact Star Innermost Stable Circular Orbit Stellar Matter 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Abramovici A. et al., 1996, Phys. Lett. A 218, 157ADSGoogle Scholar
  2. [2]
    Ando M. et al., the TAMA collaboration, 2001, Phys. Rev. Lett.,86, 3950CrossRefADSGoogle Scholar
  3. [3]
    Ayal S., Piran T., Oechslin R., Davies M., Rosswog R., 2001, ApJ, 550, 846CrossRefADSGoogle Scholar
  4. [4]
    Baumgarte T. W., Shapiro S. L., 2003, Phys. Rept. 376, 41CrossRefMathSciNetADSzbMATHGoogle Scholar
  5. [5]
    Baumgarte T. W., Cook G. B., Scheel M. A., Shapiro S. L., Teukolsky S. A., 1998, Phys. Rev. D 57, 7299MathSciNetADSGoogle Scholar
  6. [6]
    Benz W., 1990, in Buchler, J. R., ed., The Numerical Modeling of Nonlinear Stellar Pulsations: Problems and Prospects, Kluwer, Dordrecht, p. 269Google Scholar
  7. [7]
    Blaschke D., Grigorian H., Poghosyan G., Roberts C. D., Schmidt S., 1999, Phys.Let.B 450, 207ADSGoogle Scholar
  8. [8]
    Blaschke D., Grigorian H., Poghosyan G., 2001, Physics of Neutron Star Interiors, Lecture Notes in Physics 578, p.285, Springer-Verlag.Google Scholar
  9. [9]
    Blaschke D., Bombaci I., Grigorian H., Poghosyan G., 2002, New Astronomy 7, 107.CrossRefADSGoogle Scholar
  10. [10]
    Bradaschia C. et al., 1990, Nucl. Instrum. Methods A 289, 518ADSGoogle Scholar
  11. [11]
    Chodos A., Jaffe R. L., Johnson K., Thorn C. B. and Weisskopf V. F., Phys. Rev. D 9, 3471.Google Scholar
  12. [12]
    Chubarian E., Grigorian H., Poghosyan G., Blaschke D., 2000, Astron. & Astrophys. 357, 968ADSGoogle Scholar
  13. [13]
    Faber J. A., Grandclément P., Rasio F. A., gr-qc/0312097, submitted to Phys. Rev. DGoogle Scholar
  14. [14]
    Faber J. A., Rasio F. A., 2002, Phys. Rev. D., 65, 084042CrossRefADSGoogle Scholar
  15. [15]
    Glendenning N. K., Pei S.,Weber F., 1997, Phys. Rev. Lett. 79, 1603.CrossRefADSGoogle Scholar
  16. [16]
    N. K. Glendenning, 1992, Phys. Rev. D 46, 1274.ADSGoogle Scholar
  17. [17]
    Hallmann T. J. et. al. (eds.), 2002, Quark Matter 2001: Proceedings, Nucl. Phys. 698.Google Scholar
  18. [18]
    Hughes S. A., 2002, Phys. Rev. D 66, 102001.ADSGoogle Scholar
  19. [19]
    Hockney R.W., Eastwood J.W., 1994, Computer Simulation Using Particles, IoP, LondonGoogle Scholar
  20. [20]
    J. Isenberg and J. Nester, in General Relativity and Gravitation Vol. 1, edited by A. Held, (Plenum Press, New York 1980).Google Scholar
  21. [21]
    Lück H., 1997, Class. Quant. Grav. 14, 1471CrossRefADSGoogle Scholar
  22. [22]
    Mathews G. R.,Wilson J. R., 2000, Phys. Rev. D 61, 127304ADSGoogle Scholar
  23. [23]
    Mishustin I.N., Hanauske M., Bhattacharyya A., Satarov L.M., Stker H., Greiner W., 2003, Phys. Lett. B 552, 1.ADSGoogle Scholar
  24. [24]
    Monaghan J, Gingold R, 1983, J. Comp. Phys., 52, 374zbMATHCrossRefADSGoogle Scholar
  25. [25]
    Oechslin R., Rosswog S., Thielemann F. K., 2002, Phys. Rev. D 65, 103005ADSGoogle Scholar
  26. [26]
    Oohara K., Nakamura, T., 1999, Prog. Theor. Phys. Suppl., 136, 270ADSCrossRefGoogle Scholar
  27. [27]
    Poghosyan G., Grigorian H., Blaschke D., 2001, The Astrophysical Journal 551:L73.CrossRefADSGoogle Scholar
  28. [28]
    Rasio F. A. & Shapiro S. L., 1999, Class. Quant. Grav., 16, R1–R29ADSCrossRefGoogle Scholar
  29. [29]
    Rosswog S, Liebendörfer M., 2003,astro-ph/0302301, submitted to MNRASGoogle Scholar
  30. [30]
    Shibata M, Taniguchi K, Uryū K, 2003, Phys. Rev. D, in pressGoogle Scholar
  31. [31]
    Sugahara, Y, Toki, H, 1994, Nucl. Phys. A 579, 557ADSGoogle Scholar
  32. [32]
    Tooper R. F., 1965, ApJ Lett., 405, L29.Google Scholar
  33. [33]
    Uryū K., Eriguchi Y., 2000, Phys. Rev. D, 61, 124023ADSCrossRefGoogle Scholar
  34. [34]
    J. D. Walecka, 1975, Phys. Lett. B 59, 109ADSGoogle Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  • G. Poghosyan
    • 1
  • R. Oechslin
    • 2
  • K. Uryū
    • 3
  • F. K. Thielemann
    • 4
  1. 1.Departement für Physik und Astromonie der Universität BaselSwitzerland
  2. 2.Max-Planck Institut für AstrophysikGermany
  3. 3.Astrohysical Sector, SISSATriesteItaly
  4. 4.Departement füur Physik und Astromonie der Universität BaselSwitzerland

Personalised recommendations