Metallicity, pulsation and mass loss in globular cluster low-mass AGB stars

被引：0
|
作者：
McDonald, Iain [1 ]
Th van Loon, Jacco [1 ]
Boyer, Martha L. [2 ]
机构：
[1] Univ Keele, Astrophys Grp, Sch Phys & Geograph Sci, Keele ST5 5BG, Staffs, England
[2] Univ Minnesota, Dept Astron, Minneapolis, MN 55455 USA
来源：
COOL STARS, STELLAR SYSTEMS AND THE SUN | 2009年 / 1094卷
关键词：
globular clusters: individual: omega Centauri; M15; stars: AGB and post-AGB; stars: mass loss; circumstellar matter; infrared: stars; stars:; winds; outflows; OMEGA-CENTAURI; INTRACLUSTER MEDIUM; ATLAS; DUST;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present here continuing work, focussing on the Galactic globular clusters (GCs) omega Centauri (the most massive GC) and M15 (one of the most octal-poor). Spectral energy distribution fitting and dust envelope modelling using our recent Spitzer photometry in omega Centauri has allowed us to quantatively explore mass loss alone the giant branch and yield a tonal mass-loss rate front the system. We also report on our recently-announced discovery of the most metal-poor Galactic AGB variable known, and investigate the link between long-secondary-period variability and outflow.
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页码：876 / +
页数：2
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