Poster abstract details
A complete spectroscopic survey of LMC PNe candidates from MCELS
Abstract
In 2006 Reid \& Parker added 460 planetary nebulae (PNe) to the 169 previously known across the central 25~deg$^{2}$ of the LMC. The resulting large number of PNe now known in the central LMC have yielded significant advances in our knowledge of the central LMC's kinematical sub-structure (rotation, inclinations, transverse velocity) and raised
interesting questions regarding the kinematical structure of the outer regions. Our access to the MCELS survey provides the opportunity to achieve equivalent results across the whole $\sim$95
deg$^{2}$ of the LMC, critical for a complete determination of kinematics and abundance gradients. We have already used AAOmega to spectroscopically verify 92 new PNe to add to the 101 previously known in the outer LMC. New PN radial velocities are being compared to other tracers and the HI gas disk. These are being added to existing kinematic data to create gradients and verify models. With a near complete LMC PNe census to V=22, an unbiased LMC PNLF is being built in order to identify any population sub-trends or `dips' while providing an accurate bright-end cutoff which is used as a standard candle.
interesting questions regarding the kinematical structure of the outer regions. Our access to the MCELS survey provides the opportunity to achieve equivalent results across the whole $\sim$95
deg$^{2}$ of the LMC, critical for a complete determination of kinematics and abundance gradients. We have already used AAOmega to spectroscopically verify 92 new PNe to add to the 101 previously known in the outer LMC. New PN radial velocities are being compared to other tracers and the HI gas disk. These are being added to existing kinematic data to create gradients and verify models. With a near complete LMC PNe census to V=22, an unbiased LMC PNLF is being built in order to identify any population sub-trends or `dips' while providing an accurate bright-end cutoff which is used as a standard candle.