Corpus ID: 219721374

Variations of Observed Lyman-{\alpha} Spectra Shapes due to the Intergalactic Absorption

@inproceedings{Byrohl2020VariationsOO,
title={Variations of Observed Lyman-\{\alpha\} Spectra Shapes due to the Intergalactic Absorption},
author={C. Byrohl and M. Gronke},
year={2020}
}
• Published 2020
• Physics
• Lyman-α (Lyα) spectra provide insights into the small-scale structure and kinematics of neutral hydrogen (HI) within galaxies as well as the ionization state of the intergalactic medium (IGM). The former defines the intrinsic spectrum of a galaxy, which is modified by the latter. These two effects are degenerate. Using the IllustrisTNG100 simulation, we study the impact of the IGM on Lyα spectral shapes between z ∼ 0 and 5. We compute the distribution of the expected Lyα peaks and of the peak… CONTINUE READING

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