The structure and expansion law of a shock wave in an expanding universe

Details The structure and expansion law of a shock wave in an expanding universe The structure and expansion law of a shock wave in an expanding universe

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...265..583i&link_type=abstract

Astrophysical Journal, Part 1, vol. 265, Feb. 15, 1983, p. 583-596.

Astronomy and Astrophysics

Astrophysics

90

Cosmology, Intergalactic Media, Shock Wave Propagation, Universe, Asymptotic Methods, Compton Effect, Computerized Simulation, Numerical Integration, Radiative Heat Transfer, Similarity Theorem, Time Dependence

Scientific paper

The structure and expansion law of a shock wave, generated by explosion of pregalactic objects or young galaxies in the early universe, is investigated with specific consideration of the expansion of the ambient medium. First, an asymptotic solution for adiabatic explosions is obtained by numerical integration of the similarity solution. Time-dependent numerical solutions and analytic approximations are presented for the more general case. Then radiative and Compton cooling are included in numerical studies of expanding shocks. Finally, some comments on the structure of intergalactic medium are presented.

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