http://arxiv.org/abs/1806.05398
We draw attention to recent High Explosive (HE) experiments which provide compression of macroscopic amount of matter to high, even record, values of pressure in comparison with other HE experiments. The observed bounce after the compression corresponds to processes in core-collapse supernova explosions after neutrino trapping. Conditions provided in the experiments resemble those in core-collapse supernovae, permitting to use them for laboratory astrophysics. A unique feature of the experiments is compression at low entropy. The values of specific entropy are close to those obtained in numerical simulations during the process of collapse in supernovae explosions, and much lower than obtained at laser ignition facilities, another type of high-compression experiments. Both in supernovae and HE experiments the bounce undergoes at low entropy, so the HE experiments provide a new platform to realize some supernova collapse effects in laboratory, especially to study hydrodynamics of collapsing flows and the bounce. Due to good resolution of diagnostics in the compression of macroscopic amounts of material with essential effects of non-ideal plasma in EOS, and observed development of 3D instabilities, these experiments may serve as a useful benchmark for astrophysical hydrodynamic codes.
S. S.I.Blinnikov, R. R.I.Ilkaev, M. M.A.Mochalov, et. al.
Fri, 15 Jun 18
21/54
Comments: 13 pages, 8 figures, submitted to Phys.Rev.E