2 papers
astro-ph2003
The Egg Nebula (AFGL 2688): Deepening Enigma
Joel H. Kastner, Noam Soker
Recent observations of the Egg Nebula (AFGL 2688), obtained at ever-increasing spatial and spectral resolution, have revealed a perplexing array of phenomena. Many of these phenome…
astro-ph2000
Kinematics of Molecular Hydrogen Emission from Planetary and Pre-planetary Nebulae
Joel H. Kastner, Ian Gatley, David A. Weintraub
We report results from a program of high-resolution spectral mapping of rotational H_2 emission from bipolar planetary and pre-planetary nebulae. Long-slit spectra obtained with th…