On the origin of planetary nebula K648 in globular cluster M15

被引：7

作者：

Buell, JF ^{[1
]}

Henry, RBC ^{[1
]}

Baron, E ^{[1
]}

Kwitter, KB ^{[1
]}

机构：

[1] WILLIAMS COLL,DEPT ASTRON,WILLIAMSTOWN,MA 01267

来源：

ASTROPHYSICAL JOURNAL | 1997年 / 483卷 / 02期

关键词：

globular clusters; individual; (M15); planetary nebulae; (K648); stars; AGB and post-AGB; evolution; interiors;

D O I：

10.1086/304273

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We examine two scenarios for formation of the planetary nebula K648: a prompt scenario in which the planetary nebula is ejected and formed immediately after a helium shell flash and a delayed scenario in which 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.

引用

页码：837 / 842

页数：6

共 46 条

[1]

Acker A., 1992, The Strasbourg-ESO Catalogue of Galactic Planetary Nebulae. Parts I

[2] K648, THE PLANETARY-NEBULA IN THE GLOBULAR-CLUSTER M15 [J].