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A candidate redshift z ≈ 10 galaxy and rapid changes in that population at an age of 500 Myr
Open accessAbstract
Searches for very-high-redshift galaxies over the past decade have yielded a large sample of more than 6,000 galaxies existing just 900–2,000 million years (Myr) after the Big Bang (redshifts 6 > z > 3; ref. 1). The Hubble Ultra Deep Field (HUDF09) data have yielded the first reliable detections of z ≈ 8 galaxies that, together with reports of a γ-ray burst at z ≈ 8.2 (refs 10, 11), constitute the earliest objects reliably reported to date. Observations of z ≈ 7–8 galaxies suggest substantial star formation at z > 9–10 (refs 12, 13). Here we use the full two-year HUDF09 data to conduct an ultra-deep search for z ≈ 10 galaxies in the heart of the reionization epoch, only 500 Myr after the Big Bang. Not only do we find one possible z ≈ 10 galaxy candidate, but we show that, regardless of source detections, the star formation rate density is much smaller (∼10%) at this time than it is just ∼200 Myr later at z ≈ 8. This demonstrates how rapid galaxy build-up was at z ≈ 10, as galaxies increased in both luminosity density and volume density from z ≈ 10 to z ≈ 8. The 100–200 Myr before z ≈ 10 is clearly a crucial phase in the assembly of the earliest galaxies.
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Riess, A. G., Strolger, L., Casertano, S., Ferguson, H. C., Mobasher, B., Gold, B., Challis, P. J., Filippenko, A. V., Jha, S., Li, W., et al. (2007) · The Astrophysical Journal · doi:10.1086/510378 · Cited by 1,758
Cited by
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Bouwens, R. J., Illingworth, G. D., Oesch, P. A., Trenti, M., Labbé, I., Bradley, L., Carollo, M., van Dokkum, P. G., Gonzalez, V., Holwerda, B., et al. (2015) · The Astrophysical Journal · doi:10.1088/0004-637x/803/1/34 · Cited by 1,298
Self-citationMuzzin, A., Marchesini, D., Stefanon, M., Franx, M., McCracken, H. J., Milvang-Jensen, B., Dunlop, J. S., Fynbo, J. P. U., Brammer, G., Labbé, I., et al. (2013) · The Astrophysical Journal · doi:10.1088/0004-637x/777/1/18 · Cited by 982
Self-citationWide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report
Spergel, D. N., Gehrels, N. A., Baltay, C., Bennett, D. P., Breckinridge, J. B., Donahue, M. E., Dressler, A. M., Gaudi, B. S., Greene, T. P., Guyon, O., et al. (2015) · arXiv (Cornell University) · doi:10.48550/arxiv.1503.03757 · Cited by 957
Finkelstein, S. L., Ryan, R. E., Papovich, C., Dickinson, M., Song, M., Somerville, R. S., Ferguson, H. C., Salmon, B., Giavalisco, M., Koekemoer, A. M., et al. (2015) · The Astrophysical Journal · doi:10.1088/0004-637x/810/1/71 · Cited by 729
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Arvanitaki, A., Baryakhtar, M., & Huang, X. (2015) · Physical Review D · doi:10.1103/physrevd.91.084011 · Cited by 543
Metadata
- Authors
- Bouwens, R. J., Illingworth, G. D., Labbe, I., Oesch, P. A., Trenti, M., Carollo, C. M., van Dokkum, P. G., Franx, M., Stiavelli, M., González, V., Magee, D., & Bradley, L.
- Venue
- Nature
- Published
- 2011-01
- Volume
- 469
- Issue
- 7331
- Pages
- 504-507
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W1603995462
- Cited by
- 313
- References
- 1
- FWCI
- 28.17
- Type
- journal article
- Language
- en
- Open access
- green
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- Bouwens, R. J., Illingworth, G. D., Labbe, I., Oesch, P. A., Trenti, M., Carollo, C. M., van Dokkum, P. G., Franx, M., Stiavelli, M., González, V., Magee, D., & Bradley, L. (2011). A candidate redshift z ≈ 10 galaxy and rapid changes in that population at an age of 500 Myr. Nature. https://doi.org/10.1038/nature09717
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