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A limit on the number density of bright z≈ 7 galaxies
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Stanway, Elizabeth R., Bremer, M. N. (Malcolm N.), Squitieri, Valentina, Douglas, L. S. and Lehnert, M. D. (Matthew D.) (2008) A limit on the number density of bright z≈ 7 galaxies. Monthly Notices of the Royal Astronomical Society, Vol.386 (No.1). pp. 370-376. doi:10.1111/j.1365-2966.2008.13030.x
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Official URL: http://dx.doi.org/10.1111/j.1365-2966.2008.13030.x
Abstract
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≈ 7 for sources at 5–10 L* (z= 6). Our combined survey area is 225 arcmin2 to a depth of JAB= 24.2 (3σ) and 135 arcmin2 to J= 25.3 (4σ). We find that infrared data longwards of 2 μm 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.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QB Astronomy | ||||
| Divisions: | Faculty of Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Galaxies -- Evolution, Red shift, Starbursts | ||||
| Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | ||||
| Publisher: | Wiley | ||||
| ISSN: | 0035-8711 | ||||
| Official Date: | 2008 | ||||
| Dates: |
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| Volume: | Vol.386 | ||||
| Number: | No.1 | ||||
| Page Range: | pp. 370-376 | ||||
| DOI: | 10.1111/j.1365-2966.2008.13030.x | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Funder: | Science and Technology Facilities Council (Great Britain) (STFC) |
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