Comets and circumstellar dust

被引：0
|
作者：
Waelkens, C [1 ]
Waters, LBFM [1 ]
机构：
[1] Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Louvain, Belgium
来源：
HIGHLIGHTS OF ASTRONOMY, VOL 12 | 2002年 / 12卷
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Spectra obtained with the Infrared Space Observatory ISO of the dusty disks surrounding young stars display several characteristics which suggest the presence of large amounts of cometary material during these early stages. Of special interest are crystalline silicates and hydrated silicates, which surprisingly appear to be present already in cool material surrounding young objects. Another surprise is the occurrence of cometary features in the disks surrounding some binary post-AGB stars.
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页码：233 / 236
页数：4
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