V. Silvert

TL;DR: In this paper, two laser beams from the LULI-2000 facility were used in the nanosecond-picosecond configuration to heat a gold hohlraum with an energy between 30 and 150 ǫ with a duration of 0.6 nns.

TL;DR: It appears that at the conditions of the experiment the role of the term and configuration broadening was different in the three analyzed elements, this broadening being sensitive to the atomic number Z, which may be helpful for diagnostics of LTE plasmas especially in future experiments on the Δn=0 absorption in medium-Z plasma for astrophysical applications.

TL;DR: In this paper, the authors demonstrate the possibility of heating a dense plasma to a maximum temperature of 560 −± 40 eV using a few-Joule, relativistic-intensity laser pulse.

TL;DR: The international OPAC consortium consists of astrophysicists, plasma physicists and experimentalists who examine opacity calculations used in stellar physics that appear questionable and perform new calculations and laser experiments to understand the differences and improve the calculations as discussed by the authors.

TL;DR: In this paper, the dispersion of eight different theoretical estimates of the monochromatic opacity spectrum and the challenges to face to check these calculations experimentally were discussed, focusing specifically on the envelopes of β Cephei variable stars.