A limit on the number density of bright z ≈ 7 galaxies

被引：19

作者：

Stanway, Elizabeth R. ^{[1
]}

Bremer, Malcolm N. ^{[1
]}

Squitieri, Valentina ^{[1
]}

Douglas, Laura S. ^{[1
,2
]}

Lehnert, Matthew D. ^{[3
]}

机构：

[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[2] Sch Phys, Exeter EX4 4QL, Devon, England

[3] Observ Paris, Lab Etudes Galaxies Etoilets Phys & Instrumentat, GEPI, Meudon, France

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2008年 / 386卷 / 01期

基金：

英国科学技术设施理事会;

关键词：

galaxies : evolution; galaxies : high-redshift; galaxies : starburst;

D O I：

10.1111/j.1365-2966.2008.13030.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a survey of bright optical dropout sources in two deep, multiwavelength surveys comprising 11 widely separated fields, aimed at constraining the galaxy luminosity function at z approximate to 7 for sources at 5-10 L* (z = 6). Our combined survey area is 225 arcmin(2) to a depth of J(AB) = 24.2 (3 sigma) and 135 arcmin(2) to J = 25.3 (4 sigma). We find that infrared data longwards of 2 mu m are essential for classifying optical dropout sources, and in particular for identifying cool Galactic star contaminants. Our limits on the number density of high-redshift sources are consistent with current estimates of the Lyman break galaxy luminosity function at z = 6.

引用

页码：370 / 376

页数：7

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