Tests for Coalescing Binary Neutron Stars as Cosmological Origin of Gamma-Ray Bursts

Details Tests for Coalescing Binary Neutron Stars as Cosmological Origin of Gamma-Ray Bursts Tests for Coalescing Binary Neutron Stars as Cosmological Origin of Gamma-Ray Bursts

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ssrv...74..369l&link_type=abstract

Space Science Reviews, Volume 74, Issue 3-4, pp. 369-372

Mathematics

Logic

Neutron Stars, Gamma-Ray Bursts, Cosmology

Scientific paper

Theoretical logN-logS distributions and (V/V max) 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/V max)=0.33 for 411 bursts with knownC max/C lim 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.

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