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Cited by 406

The DOI matches its Crossref record; 69 of the 69 references it cites were found in a registry or an index.

UV-CONTINUUM SLOPES OF >4000 z∼ 4-8 GALAXIES FROM THE HUDF/XDF, HUDF09, ERS, CANDELS-SOUTH, AND CANDELS-NORTH FIELDS

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Bouwens, R. J., Illingworth, G. D., Oesch, P. A., Labbé, I., van Dokkum, P. G., Trenti, M., Franx, M., Smit, R., Gonzalez, V., Magee, D.·2014·The Astrophysical Journal
DOI 10.1088/0004-637x/793/2/115
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Abstract

We measure the UV-continuum slope β for over 4000 high-redshift galaxies over a wide range of redshifts z ∼ 4–8 and luminosities from the HST HUDF/XDF, HUDF09-1, HUDF09-2, ERS, CANDELS-N, and CANDELS-S data sets. Our new β results reach very faint levels at z ∼ 4 (−15.5 mag: ), z ∼ 5 (−16.5 mag: ), and z ∼ 6 and z ∼ 7 (−17 mag: ). Inconsistencies between previous studies led us to conduct a comprehensive review of systematic errors and develop a new technique for measuring β that is robust against biases that arise from the impact of noise. We demonstrate, by object-by-object comparisons, that all previous studies, including our own and those done on the latest HUDF12 data set, suffered from small systematic errors in β. We find that after correcting for the systematic errors (typically Δβ ∼ 0.1–0.2) all β results at z ∼ 7 from different groups are in excellent agreement. The mean β we measure for faint (−18 mag: ) z ∼ 4, z ∼ 5, z ∼ 6, and z ∼ 7 galaxies is −2.03 ± 0.03 ± 0.06 (random and systematic errors), −2.14 ± 0.06 ± 0.06, −2.24 ± 0.11 ± 0.08, and −2.30 ± 0.18 ± 0.13, respectively. Our new β values are redder than we have reported in the past, but bluer than other recent results. Our previously reported trend of bluer β's at lower luminosities is confirmed, as is the evolution to bluer β's at high redshifts. β appears to show only a mild luminosity dependence faintward of M UV, AB ∼ −19 mag, suggesting that the mean β asymptotes to ∼−2.2 to −2.4 for faint z ⩾ 4 galaxies. At z ∼ 7, the observed β's suggest non-zero, but low dust extinction, and they agree well with values predicted in cosmological hydrodynamical simulations.

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Metadata

Authors
Bouwens, R. J., Illingworth, G. D., Oesch, P. A., Labbé, I., van Dokkum, P. G., Trenti, M., Franx, M., Smit, R., Gonzalez, V., & Magee, D.
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2014-09-15
Volume
793
Issue
2
Pages
115
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
DOI
10.1088/0004-637x/793/2/115
OpenAlex
W2054699563
Cited by
406
References
69
FWCI
22.01
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: UV-CONTINUUM SLOPES OF >4000 z∼ 4-8 GALAXIES FROM THE HUDF/XDF, HUDF09, ERS, CANDELS-SOUTH, AND CANDELS-NORTH FIELDS. https://app.cochat.ai/papers/10.1088/0004-637x/793/2/115
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Bouwens, R. J., Illingworth, G. D., Oesch, P. A., Labbé, I., van Dokkum, P. G., Trenti, M., Franx, M., Smit, R., Gonzalez, V., & Magee, D. (2014). UV-CONTINUUM SLOPES OF >4000 z∼ 4-8 GALAXIES FROM THE HUDF/XDF, HUDF09, ERS, CANDELS-SOUTH, AND CANDELS-NORTH FIELDS. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/793/2/115

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.