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Seeing Sound Waves in the Early Universe

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Arthur Kosowsky (Rutgers University)

Astrophysics · Submitted 10 Nov 1998

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

The authors' main claim Temperature and polarization power spectra of the cosmic microwave background can provide essentially incontrovertible evidence for coherent acoustic oscillations in the early universe.

how it is stated · asserted 0.52 read the record →

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arXiv IDastro-ph/9811163 (version 1)
Pith IDQLZW2PEN, Pith's permanent record of this paper and its review
CitationArthur Kosowsky (Rutgers University). "Seeing Sound Waves in the Early Universe." arXiv:astro-ph/9811163 (1998). https://pith.science/paper/QLZW2PEN
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The compiled record

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-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,547 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.18 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.05 · compares with prior results 0.08 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

Temperature and polarization power spectra of the cosmic microwave background can provide essentially incontrovertible evidence for coherent acoustic oscillations in the early universe. A simple model calculation demonstrates explicitly how polarization couples to velocities at the surface of last scatter and is nearly independent of gravitational or density perturbations. For coherent acoustic oscillations, peaks in the temperature and polarization power spectra are precisely interleaved. If observed, such a signal would provide strong support for initial density perturbations on scales larger than the horizon, and thus for inflation.

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 Temperature and polarization power spectra of the cosmic microwave background can provide essentially incontrovertible evidence for coherent acoustic oscillations in the early universe. background 0.67 0.09 0.65 asserted 0.52
s1 A simple model calculation demonstrates explicitly how polarization couples to velocities at the surface of last scatter and is nearly independent of gravitational or density perturbations. method 0.73 0.80 0.08 asserted 1.00
s2 For coherent acoustic oscillations, peaks in the temperature and polarization power spectra are precisely interleaved. result 0.95 0.31 0.36 asserted 1.00
s3 If observed, such a signal would provide strong support for initial density perturbations on scales larger than the horizon, and thus for inflation. interpretation 1.00 0.09 0.33 hedged possibility 0.92

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.56.

What was examined, and what was not

sources read
  • arXiv listing abstract v1
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
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  • P abstract
not run
  • S sections
  • 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

Temperature and polarization power spectra of the cosmic microwave background can provide essentially incontrovertible evidence for coherent acoustic oscillations in the early universe. A simple model calculation demonstrates explicitly how polarization couples to velocities at the surface of last scatter and is nearly independent of gravitational or density perturbations. For coherent acoustic oscillations, peaks in the temperature and polarization power spectra are precisely interleaved. If observed, such a signal would provide strong support for initial density perturbations on scales larger than the horizon, and thus for inflation.

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