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Showing 1993Show all
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astro-ph1993★ 50 cited
A Cosmic String Specific Signature on the Cosmic Microwave Background
R. Moessner, L. Perivolaropoulos, R. Brandenberger
Using an analytical model for the string network we show that the kurtosis of cosmic microwave background (CMB) temperature gradient maps is a good statistic to distinguish between…
astro-ph1993★ 234 cited
Hydrodynamics of Relativistic Fireballs
Tsvi Piran, Amotz Shemi, Ramesh Narayan
We examine analytically and numerically the evolution of a relativistic fireball. We show that, after an early rearrangement phase, most of the matter and energy in the fireball is…