DAzLE:: The Dark Ages z (redshift) Lyman-α explorer

被引：46

作者：

Horton, A ^{[1
]}

Parry, I ^{[1
]}

Bland-Hawthorn, J ^{[1
]}

Cianci, S ^{[1
]}

King, D ^{[1
]}

McMahon, R ^{[1
]}

Medlen, S ^{[1
]}

机构：

[1] Inst Astron, Cambridge, England

来源：

GROUND-BASED INSTRUMENTATION FOR ASTRONOMY, PTS 1-3 | 2004年 / 5492卷

关键词：

DAZLE; Lyman-alpha emitter; high redshift; reionisation;

D O I：

10.1117/12.551591

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

DAzLE is an near infrared narrowband differential imager being built by the Institute of Astronomy, Cambridge, in collaboration with the Anglo-Australian observatory. It is a special purpose instrument designed with a sole aim; the detection of redshifted Lyman-alpha emission from star forming galaxies at z > 7. DAzLE will use pairs of high resolution (R = 1000) narrowband filters to exploit low background `windows' in the near infrared sky emission spectrum. This will enable it to reach sensitivities of similar to 2 x 10(-21)Wm(-2), thereby allowing the detection of z > 7 galaxies with star formation rates as low as a few solar masses per year. The design of the instrument, and in particular the crucial narrowband filters, are presented. The predicted performance of DAzLE including the sensitivity, volume coverage and expected number counts, is discussed. The current status of the DAzLE project, and its projected timeline, are also presented.

引用

页码：1022 / 1032

页数：11

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