The laboratory simulation of unmagnetized supernova remnants Absence of a blast wave

Details The laboratory simulation of unmagnetized supernova remnants Absence of a blast wave The laboratory simulation of unmagnetized supernova remnants Absence of a blast wave

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...280..802b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 280, May 15, 1984, p. 802-808. Research supported by the U.S. Department of

Astronomy and Astrophysics

Astrophysics

19

Hydrodynamics, Interstellar Matter, Shock Waves, Supernova Remnants, Carbon Dioxide Lasers, Ejecta, Electron Energy, Gas Ionization, Kinetic Energy, Magnetic Induction, Particle Collisions, Space Environment Simulation

Scientific paper

Supernova remnants are experimentally simulated by irradiating spherical targets with eight-beam carbon dioxide laser in a chamber containing finite amounts of neutral gas, the gas being ionized by radiation from the hot target. The expansion velocities of the target plasmas are approximately the same as the expansion velocities of supernova ejecta and the experiment is successfully scaled to the case of a supernova remnant in an unmagnetized, low-density, interstellar medium. No sweep-up of the ambient plasma is detected, indicating that no hydrodynamic shock wave is formed to couple the target ejecta to the ambient gas. The experiment implies that if supernova ejecta couple to the interstellar medium, magnetic-field effects may be crucial to the physical description.

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