a highly conducting coronal plasma. For maximum generality, we use non-dimensional units (denoted as, e.g., $\hat{f}$). The initial thermal pressure, $\hat{P}$, is uniform, as is the initial mass density, $\hat{\rho}$. We assume an ideal plasma equation of state. The temperature is therefore initially uniform, $\hat{T}=\hat{P}/(\hat{\rho} \hat{R})$, where $\hat{R}=0.01$ is the non-dimensional gas constant. The volume magnetic field $\hat{B}_v=1$ is used as the reference magnetic field intensity. From this non-dimensional setting, choosing the value of certain physical quantities (denoted, e.g., $f_0$) fully determines the physical scales of the system. The precise correspondence is detailed in Appendix \[An:Scaling\].

In this study, we analyze how modifying the plasma $\beta$ impacts the development of the jet. All our previous published computations have been performed assuming $\beta=0.25$, defined with respect to the uniform background field strength. In the present paper we performed three additional simulations where the $\beta$ ranges from $1$ to $2.5 \times 10^{-3}$. We seek to test whether the modification of the $\beta$ value precludes the existence of the jet, and to establish how it modifies the jet properties and dynamics.

The plasma $\beta$ is varied by using different values for the non-dimensional plasma pressure $\hat{P}$. The simulations presented in PDD15 considered a 