Hunting white dwarfs at the center of planetary nebulae

Javier Ahumada, Walter Weidmann, Marcelo Miller Bertolami +1

We present Gemini-South observations of nine faint and extended planetary nebulae. Using direct images taken with the spectrograph GMOS, we built the $(u^{\prime }-g^{\prime })$ vs. $(g^{\prime }-r^{\prime })$ di…