Constraints on the End of Reionization from the Density Fields Surrounding Two Highly Opaque Quasar Sightlines Article Swipe
Holly M. Christenson
,
George D. Becker
,
Steven R. Furlanetto
,
Frederick B. Davies
,
Matthew A. Malkan
,
Yongda Zhu
,
Elisa Boera
,
Adam Trapp
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3847/1538-4357/ac2a34
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3847/1538-4357/ac2a34
The observed large-scale scatter in Ly α opacity of the intergalactic medium at z < 6 implies large fluctuations in the neutral hydrogen fraction that are unexpected long after reionization has ended. A number of models have emerged to explain these fluctuations that make testable predictions for the relationship between Ly α opacity and density. We present selections of z = 5.7 Ly α -emitting galaxies (LAEs) in the fields surrounding two highly opaque quasar sightlines with long Ly α troughs. The fields lie toward the z = 6.0 quasar ULAS J0148+0600, for which we reanalyze previously published results using improved photometric selection, and toward the z = 6.15 quasar SDSS J1250+3130, for which results are presented here for the first time. In both fields, we report a deficit of LAEs within 20 h −1 Mpc of the quasar. The association of highly opaque sightlines with galaxy underdensities in these two fields is consistent with models in which the scatter in Ly α opacity is driven by large-scale fluctuations in the ionizing UV background or by an ultra-late reionization that has not yet concluded at z = 5.7.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3847/1538-4357/ac2a34
- https://iopscience.iop.org/article/10.3847/1538-4357/ac2a34/pdf
- OA Status
- bronze
- Cited By
- 33
- References
- 79
- Related Works
- 10
- OpenAlex ID
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https://openalex.org/W3202061696Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3847/1538-4357/ac2a34Digital Object Identifier
- Title
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Constraints on the End of Reionization from the Density Fields Surrounding Two Highly Opaque Quasar SightlinesWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2021Year of publication
- Publication date
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2021-12-01Full publication date if available
- Authors
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Holly M. Christenson, George D. Becker, Steven R. Furlanetto, Frederick B. Davies, Matthew A. Malkan, Yongda Zhu, Elisa Boera, Adam TrappList of authors in order
- Landing page
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https://doi.org/10.3847/1538-4357/ac2a34Publisher landing page
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https://iopscience.iop.org/article/10.3847/1538-4357/ac2a34/pdfDirect link to full text PDF
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YesWhether a free full text is available
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bronzeOpen access status per OpenAlex
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https://iopscience.iop.org/article/10.3847/1538-4357/ac2a34/pdfDirect OA link when available
- Concepts
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Reionization, Opacity, Physics, Quasar, Astrophysics, Galaxy, Intergalactic travel, Astronomy, Redshift, OpticsTop concepts (fields/topics) attached by OpenAlex
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33Total citation count in OpenAlex
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2025: 8, 2024: 8, 2023: 7, 2022: 6, 2021: 4Per-year citation counts (last 5 years)
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79Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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