All Tables

Table 1: Log of observations.
Table 3: Model parameters for the central star of SMP 61. Stellar core parameters: Stellar luminosity $L_\star$ , temperature $T_\star$ and radius $R_\star$ . Wind parameters: mass-loss rate $\dot{M}$ , terminal wind velocity $v_\infty$ , clumping factor D, and the corresponding transformed radius $R_{\rm t}$ . Atmospheric abundances: Mass fractions $X_{\rm He}$ , $X_{\rm C}$ , and $X_{\rm O}$ are determined by the model fit (Fig. 3) whereas $X_{\rm Si}$ is set to a standard LMC value. For $X_{\rm Fe}$ and $X_{\rm N}$ upper limits are given. The hydrogen mass fraction $X_{\rm H}$ could not be determined in the present analysis. Interstellar parameters: Distance modulus M - m for the LMC, color excess due to interstellar extinction E_B-V, and Ly $\alpha$ hydrogen column density $n_{\rm H}$ .
Table 4: Observational constraints and tolerances for the planetary nebula SMP 61.
Table 2: Nebular dereddened fluxes from different authors.