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Planetary nebulae (PNe) are essential tracers of the kinematics of thediffuse halo and intracluster light where stellar spectroscopy is unfeasible,due to their strong emission lines. However, that is not all they can revealabout the underlying stellar population. In recent years, it has also beenfound that PNe in the metal-poor halos of galaxies have different properties(specific frequency, luminosity function), than PNe in the more metal-richgalaxy centers. A more quantitative understanding of the role of age andmetallicity in these relations would turn PNe into valuable stellar-populationtracers. In order to do that, a full characterization of PNe in regions wherethe stellar light can also be analysed in detail is necessary. In this work, wemake use of integral-field spectroscopic data covering the central regions ofgalaxies, which allow us to measure both stellar ages and metallicities as wellas to detect PNe. This analysis is fundamental to calibrate PNe as stellarpopulation tracers and to push our understanding of galaxy properties atunprecedented galactocentric distances.

Planetary nebulae as tracers of stellar population properties: unlocking their potential with integral-field spectroscopy