Abstract
We present the results of a spatiokinematic study of the planetary nebula Menzel 1 using spectrophotometric mapping and a three-dimensional photoionization code. We create several two-dimensional emission-line images from our long-slit spectra and use these to derive the line fluxes for 15 lines, the Hα/Hβ extinction map, and the [S II] line ratio density map of the nebula. We use our photoionization code constrained by these data to derive the three-dimensional nebular structure and ionizing star parameters of Menzel 1 by simultaneously fitting the integrated line intensities, the density map, and the observed morphologies in several lines, as well as the velocity structure. Using theoretical evolutionary tracks of intermediate- and low-mass stars, we derive a mass for the central star of 0.63 ± 0.05 M☉. We also derive a distance of 1050 ± 150 pc to Menzel 1.
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