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Constraining the thermal dust content of Lyman break galaxies in an overdense field at z≈ 5
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Stanway, Elizabeth R., Bremer, Malcolm N., Davies, Luke J. M. and Lehnert, Matthew D. (2010) Constraining the thermal dust content of Lyman break galaxies in an overdense field at z≈ 5. Monthly Notices of the Royal Astronomical Society: Letters, Vol.407 (No.1). L94-L98. doi:10.1111/j.1745-3933.2010.00912.x ISSN 1745-3925.
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Official URL: http://dx.doi.org/10.1111/j.1745-3933.2010.00912.x
Abstract
We have carried out 870-μm observations in the J1040.7−1155 field, known to host an overdensity of Lyman break galaxies at z= 5.16 ± 0.05. We do not detect any individual source at the S870 μm= 3.0 mJy beam−1 (2σ) level. A stack of nine spectroscopically confirmed z > 5 galaxies also yields a non-detection, constraining the submillimetre flux from a typical galaxy at this redshift to S870 μm < 0.85 mJy, which corresponds to a mass limit Mdust < 1.2 × 108 M⊙ (2σ). This limits the mass of thermal dust in distant Lyman break galaxies to less than one-tenth of their typical stellar mass. We see no evidence for strong submillimetre galaxies associated with the ultraviolet-selected galaxy overdensity, but cannot rule out the presence of fainter, less massive sources.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society: Letters | ||||
Publisher: | Wiley | ||||
ISSN: | 1745-3925 | ||||
Official Date: | 2010 | ||||
Dates: |
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Volume: | Vol.407 | ||||
Number: | No.1 | ||||
Page Range: | L94-L98 | ||||
DOI: | 10.1111/j.1745-3933.2010.00912.x | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published |
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