VIRUS: A hugely replicated integral field spectrograph for HETDEX

被引：30

作者：

Hill, Gary J.

MacQueen, Phillip J.

Palunas, Povilas

Kelz, Andreas

Roth, Martin M.

Gebhardt, Karl

Grupp, Frank

机构：

[1] Univ Texas, McDonald Observ, Austin, TX 78712 USA

[2] Univ Texas, Dept Astron, Austin, TX 78712 USA

[3] AIP, D-14482 Potsdam, Germany

[4] Univ Sternwarte, USM, D-81679 Munich, Germany

来源：

NEW ASTRONOMY REVIEWS | 2006年 / 50卷 / 4-5期

基金：

美国国家科学基金会;

关键词：

instrumentation : spectrographs (VIRUS); surveys (HETDEX); cosmological parameters; large-scale structure of universe;

D O I：

10.1016/j.newar.2006.02.023

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the visible integral-field replicable unit spectrograph (VIRUS), the basis of the Hobby-Eberly telescope dark energy experiment (HETDEX); a survey of a 5 Gpe(3) volume at 1.8 < z < 3.7 that will constrain the evolution of dark energy. VIRUS consists of 145 copies of a simple unit spectrograph, deployed on the HET. Industrial replication will allow VIRUS to be built quickly, at considerable cost-savings, with substantial risk-mitigation, compared to conventional instruments. VIRUS will cover 30 sq. arcmin per observation and detect 14 million resolution elements per exposure, an order of magnitude larger than existing instruments. VIRUS can complete HETDEX in about 100 nights observing. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：378 / 381

页数：4

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