Ages of late spectral type Vega-like stars

被引：62

作者：

Song, I ^{[1
]}

Caillault, JP

Navascues, DB

Stauffer, JR

Randich, S

机构：

[1] Univ Georgia, Dept Phys & Astron, Athens, GA 30602 USA

[2] Max Planck Inst Astron, D-69117 Heidelberg, Germany

[3] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[4] Osservatorio Astrofis Arcetri, I-50125 Florence, Italy

来源：

ASTROPHYSICAL JOURNAL | 2000年 / 533卷 / 01期

基金：

美国国家航空航天局;

关键词：

planetary systems; stars : activity; stars : late-type;

D O I：

10.1086/312597

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have estimated the ages of eight late-type Vega-like stars by using standard age-dating methods for single late-type stars, e.g., location on the color-magnitude diagram, Li lambda 6708 absorption, Ca (II) H and K emission, Xray luminosity, and stellar kinematic population. With the exception of the very unusual pre-main-sequence star system HD 98800, all the late-type Vega-like stars are the same age as the Hyades cluster (600-800 Myr) or older.

引用

页码：L41 / L44

页数：4

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