ON THE ORIGIN OF PLANETARY-NEBULA K648 IN GLOBULAR-CLUSTER M15

Authors
BUELL JF HENRY RBC BARON E KWITTER KB
Citation
Jf. Buell et al., ON THE ORIGIN OF PLANETARY-NEBULA K648 IN GLOBULAR-CLUSTER M15, The Astrophysical journal, 483(2), 1997, pp. 837-842
Citations number
46
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
483
Issue
2
Year of publication
1997
Part
1
Pages
837 - 842
Database
ISI
SICI code
0004-637X(1997)483:2<837:OTOOPK>2.0.ZU;2-S
Abstract
We examine two scenarios for formation of the planetary nebula K648: a prompt scenario in which the planetary nebula is ejected and formed i mmediately after a helium shell flash and a delayed scenario in which a third dredge-up occurs and the envelope is ejected during the follow ing interpulse phase. We present models of both scenarios and find tha t each can produce K648-like systems. We suggest that the prompt scena rio is more favorable but cannot rule out the delayed scenario.