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The study of planetary nebulae provides important constraints for manyaspects of stellar and Galactic evolution. Hen 2-108 is a poorly knownplanetary nebula with a slight elliptical morphology and a peculiar centralstar (CS), which has defied classification. In this work, we present the firstdetailed integral field spectroscopic study of the planetary nebula Hen 2-108and its CS. We provide spatially resolved flux maps for important emissionlines, as well as diagnostic maps of extinction and electronic density andtemperature. Physical conditions and chemical abundances were also calculatedfrom the integrated spectrum. The analysis was also performed with the codesatellite which uses a distinct strategy to evaluate physical and chemicalproperties. Both satellite and traditional procedure give consistent results,showing some variation in physical and chemical properties. We detect andmeasure a number of faint heavy element recombination lines from which we finda significant abundance discrepancy factor for O/H, and possibly for N/H.Pseudo 3D photoionization models were used to assist in the interpretation withresults supporting the low-ionisation nature of this nebula, indicating a CSwith Teff = 40 kK and a shell structure. The spectrum of the CS has beenanalysed with a detailed model for expanding atmospheres to infer stellarparameters, finding that it is a [Of/WN8] type with T* = 41.5 kK, making it anew addition to a small set (~20) of rare objects.

Analysis of Integral Field Spectroscopy observations of the planetary nebula Hen 2-108 and its central star