On the Origin of Planetary Nebula K648 in Globular Cluster M15
arXiv:astro-ph/9707123 · doi:10.1086/304273
Abstract
We examine two scenarios for formation of the planetary nebula K648: a prompt scenario where the planetary nebula is ejected and formed immediately after a helium shell flash and a delayed scenario where a third dredge up occurs and the envelope is ejected during the following interpulse phase. We present models of both scenarios and find that each can produce K648-like systems. We suggest that the prompt scenario is more favorable but cannot rule out the delayed scenario.
19 pages, 2 figures, latex, 2 files containing postscript figures. Paper to appear in Astrophysical Journal, 483, 837 (1997)