The Cosmic Microwave Background Optical Depth Constrains the Duration of Reionization
Recently, it was pointed out that invoking a large value of the cosmic microwave background (CMB) optical depth, τ _CMB = 0.09, could help resolve tensions between Dark Energy Survey Instrument DR2 baryon acoustic oscillation data and the CMB. This is larger than the value of τ _CMB = 0.058 measur...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/2041-8213/ade141 |
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