Showing 1–20 of 25 results
/ Date/ Name
Aug 1, 1997A New Look At Carbon Abundances In Planetary Nebulae. III. DDDM1, IC 3568, IC4593, NGC 6210, NGC 6720, NGC 6826, & NGC 7009May 3, 2006ELSA: An Integrated, Semi-Automated Nebular Abundance PackageJan 30, 2008A Multiwavelength Analysis of the Halo Planetary Nebula DdDm-1Jun 12, 2001Sulfur, Chlorine, & Argon Abundances in Planetary Nebulae. I: Observations and Abundances in a Northern SampleMar 3, 2003Physical Structure of Planetary Nebulae. I. The Owl NebulaJan 6, 1999Morphology and Composition of the Helix NebulaJul 10, 1997On the Origin of Planetary Nebula K648 in Globular Cluster M15Aug 21, 2001Sulfur, Chlorine, and Argon in Planetary Nebulae. IIA: Observations of a Southern SampleJan 4, 2001Observational Tests Of Intermediate Mass Star Yields Using Planetary NebulaeSep 8, 2014The Emerging Planetary Nebula CRL 618 and its Unsettled Central Star(s)Sep 12, 2011Reduce, Reuse, Recycle: Planetary Nebulae as Green Galactic CitizensJul 2, 1997Planetary Nebula Abundances, Stellar Yields, And The Galactic Evolution of C-12 and N-14May 1, 2006The Sulfur Abundance Anomaly in Planetary NebulaeMay 2, 2006Galactic Abundance Patterns via Peimbert Types I & II Planetary NebulaeOct 5, 2015Co-spatial Long-slit UV/Optical Spectra of Ten Galactic Planetary Nebulae with HST/STIS II. Nebular Models, Central Star Properties and He+CNO SynthesisMar 10, 2014The Present and Future of Planetary Nebula Research. A White Paper by the IAU Planetary Nebula Working GroupSep 13, 2011Abundances of Disk Planetary Nebulae in M31 and the Radial Oxygen GradientFeb 18, 2010Alpha Element Abundances in a Large Sample of Galactic Planetary NebulaeAug 29, 2017On the Production of He, C and N by Low and Intermediate Mass Stars: A Comparison of Observed and Model-Predicted Planetary Nebula AbundancesSep 10, 2001Sulfur, Chlorine, & Argon Abundances in Planetary Nebulae. IIB: Abundances in a Southern Sample