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Measuring the temperature and profiles of Lyman-$\alpha$ absorbers

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Antonella Garzilli, Tom Theuns, Joop Schaye

Cosmology and Nongalactic Astrophysics · Submitted 20 Aug 2018

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We apply our method to mock spectra from the reference model of the EAGLE cosmological simulation, and we demonstrate that we are able to reconstruct the IGM properties.

how it is stated · asserted 1.00 read the record →

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arXiv ID1808.06646 (version 2)
Pith IDVXX337BQ, Pith's permanent record of this paper and its review
CitationAntonella Garzilli, Joop Schaye, Tom Theuns. "Measuring the temperature and profiles of Lyman-$\alpha$ absorbers." arXiv:1808.06646 (2018). https://pith.science/paper/VXX337BQ
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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,726 input tokens.

What the abstract itself states, as probabilities: claims first 0.05 · states limitation 0.14 · human participants 0.01 · controlled comparison 0.09 · randomized assignment 0.01 · states quantitative result 0.05 · compares with prior results 0.14 · mentions code or data availability 0.03.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; .

The distribution of the absorption line broadening observed in the Ly$\alpha$ forest carries information about the temperature and widths of the filaments in the intergalactic medium (IGM). In this work, we present and test a new method for inferring the temperature of the IGM, the size of the absorbing filaments and the photo-ionization rate of hydrogen from the properties of absorption line broadening in the Ly$\alpha$ forest. We apply our method to mock spectra from the reference model of the EAGLE cosmological simulation, and we demonstrate that we are able to reconstruct the IGM properties. Our method explicitly takes into account the degeneracy between IGM temperature, the photo-ionization rate of hydrogen and the widths of the intergalactic filaments.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 The distribution of the absorption line broadening observed in the Ly$\alpha$ forest carries information about the temperature and widths of the filaments in the intergalactic medium (IGM). background 1.00 0.08 0.07 asserted 1.00
s1 In this work, we present and test a new method for inferring the temperature of the IGM, the size of the absorbing filaments and the photo-ionization rate of hydrogen from the properties of absorption line broadening in the Ly$\alpha$ forest. contribution 0.99 0.95 0.21 asserted 0.98
s2 We apply our method to mock spectra from the reference model of the EAGLE cosmological simulation, and we demonstrate that we are able to reconstruct the IGM properties. result 0.57 0.96 0.46 asserted 1.00
s3 Our method explicitly takes into account the degeneracy between IGM temperature, the photo-ionization rate of hydrogen and the widths of the intergalactic filaments. method 0.93 0.86 0.10 asserted 1.00

What kind of paper the classifier reports this is: method or tool 1.00 · evidence from simulation or computation 1.00.

What was examined, and what was not

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  • references and citing sentences
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  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

The distribution of the absorption line broadening observed in the Ly$\alpha$ forest carries information about the temperature and widths of the filaments in the intergalactic medium (IGM). In this work, we present and test a new method for inferring the temperature of the IGM, the size of the absorbing filaments and the photo-ionization rate of hydrogen from the properties of absorption line broadening in the Ly$\alpha$ forest. We apply our method to mock spectra from the reference model of the EAGLE cosmological simulation, and we demonstrate that we are able to reconstruct the IGM properties. Our method explicitly takes into account the degeneracy between IGM temperature, the photo-ionization rate of hydrogen and the widths of the intergalactic filaments.

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References
How the literature uses it

5 arXiv papers cite this in 7 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 6 sentences without a confident label

Cites it as background 1 paper

What it cites · 1 sentence without a confident label

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Cites as background 1 paper

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