Search for cool circumstellar matter in the Ursae Majoris group with ISO

被引：0

作者：

Abrahám, P ^{[1
]}

Leinert, C ^{[1
]}

Burkert, A ^{[1
]}

Lemke, D ^{[1
]}

Henning, T ^{[1
]}

机构：

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

来源：

UNIVERSE AS SEEN BY ISO, VOLS I AND II | 1999年 / 427卷

关键词：

stars : circumstellar matter; stars : individual : beta UMa;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We observed the mid- and far-infrared spectral energy distributions of 9 A-type stars using the ISO satellite and the UKIRT telescope. We found that only 1 out of the 9 stars shows clear signature of circumstellar dust, and derived upper limits for the dust mass around the other stars in the range of 0.02-0.40 M-moon. Since 5 stars are confirmed members of the 300 Myrs old Ursae Majoris group, our results help to determine the temporal evolution from the massive disks/envelopes of Herbig Ae/Be stars to Vega-type disks.

引用

页码：261 / 264

页数：4

共 12 条

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