The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Dust in the Reionization Era: ALMA Observations of a z = 8.38 Gravitationally Lensed Galaxy
Open accessAbstract
We report on the detailed analysis of a gravitationally lensed Y-band dropout, A2744_YD4, selected from deep Hubble Space Telescope imaging in the Frontier Field cluster Abell 2744. Band 7 observations with the Atacama Large Millimeter/submillimeter Array (ALMA) indicate the proximate detection of a significant 1 mm continuum flux suggesting the presence of dust for a star-forming galaxy with a photometric redshift of . Deep X-SHOOTER spectra confirms the high-redshift identity of A2744_YD4 via the detection of Ly α emission at a redshift z = 8.38. The association with the ALMA detection is confirmed by the presence of [O iii] 88 μ m emission at the same redshift. Although both emission features are only significant at the 4 σ level, we argue their joint detection and the positional coincidence with a high-redshift dropout in the Hubble Space Telescope images confirms the physical association. Analysis of the available photometric data and the modest gravitational magnification ( ) indicates A2744_YD4 has a stellar mass of ∼2 × 10 9 , a star formation rate of ∼20 yr−1 and a dust mass of ∼6 × 10 6 . We discuss the implications of the formation of such a dust mass only after the onset of cosmic reionization.
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Metadata
- Authors
- Laporte, N., Ellis, R. S., Boone, F., Bauer, F. E., Quénard, D., Roberts-Borsani, G. W., Pelló, R., Pérez-Fournon, I., & Streblyanska, A.
- Venue
- The Astrophysical Journal Letters
- Publisher
- American Astronomical Society
- Published
- 2017-03-08
- Volume
- 837
- Issue
- 2
- Pages
- L21
- ISSN
- 2041-8205 (ISSN-L)
- 2041-8213
- OpenAlex
- W2594398567
- Cited by
- 319
- References
- 36
- FWCI
- 22.28
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Laporte, N., Ellis, R. S., Boone, F., Bauer, F. E., Quénard, D., Roberts-Borsani, G. W., Pelló, R., Pérez-Fournon, I., & Streblyanska, A. (2017). Dust in the Reionization Era: ALMA Observations of a z = 8.38 Gravitationally Lensed Galaxy. The Astrophysical Journal Letters. https://doi.org/10.3847/2041-8213/aa62aa
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