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arXiv · 2006.10744

A comparison of quasar emission reconstruction techniques for $z\geq5.0$ Lyman-$α$ and Lyman-$β$ transmission

S. E. I. Bosman·D. Ďurovčíková·F. B. Davies·A. C. Eilers
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Abstract

Reconstruction techniques for intrinsic quasar continua are crucial for the precision study of Lyman-$α$ (Ly-$α$) and Lyman-$β$ (Ly-$β$) transmission at $z>5.0$, where the $λ<1215 A$ emission of quasars is nearly completely absorbed. While the number and quality of spectroscopic observations has become theoretically sufficient to quantify Ly-$α$ transmission at $5.0 5.7$ with IR X-Shooter spectroscopy, obtaining well-characterised measurements for the mean flux transmission at $4.7<z<6.3$. Our results demonstrate the importance of testing and, when relevant, training, continuum reconstruction techniques in a systematic way.

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S. E. I. Bosman, D. Ďurovčíková, F. B. Davies, A. C. Eilers. 2021-03-17. A comparison of quasar emission reconstruction techniques for $z\geq5.0$ Lyman-$α$ and Lyman-$β$ transmission. https://doi.org/10.1093/mnras%2Fstab572

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