Dust depletion in Damped Lyman α systems

被引：0
|
作者：
Hou, JL [1 ]
Boissier, S [1 ]
Prantzos, N [1 ]
机构：
[1] Shanghai Astron Observ, Shanghai 200030, Peoples R China
来源：
COSMIC EVOLUTION: ON THE OCCASION OF THE 60TH BIRTHDAYS OF JEAN AUDOUZE AND JAMES W TRURAN | 2001年
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We point out a previously unnoticed anti-correlation between the observed abundance ratio [X/Zn] (Zn is assumed undepleted and X stands for Fe, Cr and Ni) and metal column density ([Zn/H]+log(N-HI) = F) in Damped Lyman alpha systems (DLAs). We suggest that this trend is an unambiguous sign of depletion.
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页码：297 / 298
页数：2
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