Space Science Reviews

, Volume 74, Issue 3–4, pp 369–372 | Cite as

Tests for coalescing binary neutron stars as cosmological origin of gamma-ray bursts

  • V. M. Lipunov
  • I. E. Panchenko
  • K. A. Postnov
  • M. E. Prokhorov
Article
  • 28 Downloads

Abstract

Theoretical logN-logS distributions and (V/Vmax) tests of gamma-ray bursts in the model of coalescence of neutron star (NS+NS) and/or NS+black hole (NS+BH) binaries are calculated for a flat Universe (Ω=1) with different values of the cosmological constant Λ and under various assumptions about the star formation history. The observed logN-logS distribution and value of (V/Vmax)=0.33 for 411 bursts with knownCmax/Clim from the 2d BATSE catalogue are best fitted with a model for which ΩΛ = 0.2 and primary star formation occurs at redshiftsz≃5–6.

Key words

Neutron stars gamma-ray bursts cosmology 

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References

  1. Carroll, S. M., Press, W. H., and Turner, E. L.: 1992,Ann. Rev. Astron. Astrophys. 30, 499Google Scholar
  2. Lipunov, V. M.: 1992,Astrophysics of Neutron Stars, Springer: HeidelbergGoogle Scholar
  3. Lipunov, V. M. et al.: 1994a,Astrophys. J. 423, L121Google Scholar
  4. Lipunov, V. M.et al.: 1994b, (submitted to Astron. Astrophys.)Google Scholar
  5. Meegan, C. A., et al.: 1992,Nature 355, 143Google Scholar
  6. Narayan, R., Paczyński, B., and Piran, T.: 1992,Astrophys. J. 395, L83Google Scholar
  7. Paczyński, B.: 1992,Nature 355, 521Google Scholar
  8. Piran, T.: 1992,Astrophys. J. 389, L45Google Scholar
  9. Wickramasinghe, W. A. D. T., et al.: 1993,Astrophys. J. 411, L55Google Scholar
  10. Yi, I.: 1994,Astrophys. J. 431, 543Google Scholar

Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • V. M. Lipunov
    • 1
  • I. E. Panchenko
    • 1
  • K. A. Postnov
    • 1
  • M. E. Prokhorov
    • 1
  1. 1.Sternberg Astronomical InstituteMoscowRussia

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