Carbon Abundances in the Small Magellanic Cloud Planetary Nebulae

As an ongoing study of Magellanic Cloud PNe we have obtained UV spectra of 9 PNe in the SMC to measure their carbon abundances. The spectra were acquired with ACS HRC/PR200L and SBC/PR130L. The ACS prisms give a reasonable resolution in the range of 1200-2500 Å to detect C IV, C III], and C II] nebular emission, essential for chemical studies of PNe. The carbon abundances of SMC PNe, together with those of the LMC previously determined with STIS spectroscopy, will allow a comparative study of nebular enrichment and provide a basis for comparison with stellar evolution models at various metallicities.