Cutoff in the Lyman-α forest power spectrum Warm IGM or warm dark matter?
| Authors |
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|---|---|
| Publication date | 2017 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | Issue number | 773 |
| Pages (from-to) | 258-264 |
| Organisations |
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| Abstract | We re-analyse high redshift and high resolution Lyman-α forest spectra considered in [1], seeking to constrain the properties of warm dark matter particles. Compared to this previous work, we consider a wider range of thermal histories of the intergalactic medium. We find that both warm and cold dark matter models can explain the cut-off observed in the flux power spectra of high-resolution observations equally well. This implies, however, very different thermal histories and underlying reionization models. We discuss how to remove this degeneracy. |
| Document type | Article |
| Language | English |
| Published at |
https://doi.org/10.1016/j.physletb.2017.08.022
(Final published version)
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| Other links | |
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Cutoff in the Lyman-α forest power spectrum
(Final published version)
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