SPECIAL TOPIC:Radiation from High Energy Density PlasmasInvestigating the effect of adding an on-axis jet to Ar gas puff Zpinches on Z by A. J. Harvey-Thompson, C. A. Jennings, B. Jones,J. P. Apruzese, D. J. Ampleford, D. C. Lamppa, C. A. Coverdale,M. E. Cuneo, J. L. Giuliani, S. B. Hansen, M. C. Jones, N. W. Moore, G. A. Rochau, and J. W. Thornhill [23(10-11)]. - 2016