Astrophysics · arXiv:astro-ph/0406662 v1 · submitted 29 Jun 2004
Power Spectrum Sensitivity and the Design of Epoch of Reionization Observatories
The paper says
“In this paper we demonstrate how to accurately calculate the EOR power spectrum sensitivity of an array, and develop scaling relationships which can be used to guide the design of EOR observatories.”
from the abstract · picked out as the main claim by a classifier
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The paper
Abstract
Recent theoretical developments for observing the Epoch of Reionization (EOR) have concentrated on the power spectrum signature of redshifted 21 cm emission. These studies have demonstrated the great potential of statistical EOR observations, however, the sensitivity calculations for proposed low frequency radio arrays have been highly approximate. The formalism developed for interferometric measurements of the cosmic microwave background can be extended to three dimensions to naturally incorporate the line-of-sight information inherent in the EOR signal. In this paper we demonstrate how to accurately calculate the EOR power spectrum sensitivity of an array, and develop scaling relationships which can be used to guide the design of EOR observatories. The implications for antenna distribution, antenna size, and correlator requirements on the EOR sensitivity are detailed.
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abstract compiled · 2026-09-23 · no language-model review
How the main claim is stated: asserted 1.00
What the abstract itself states, as probabilities: claims first 0.08 · states limitation 0.08 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.05 · compares with prior results 0.42 · mentions code or data availability 0.02
The abstract, sentence by sentence
This table labels the abstract only (arXiv listing abstract v1). The number is the probability the classifier gave the label.
| Sentence | Role | The authors' own work | States the main conclusion | Strength |
|---|---|---|---|---|
| Recent theoretical developments for observing the Epoch of Reionization (EOR) have concentrated on the power spectrum signature of redshifted 21 cm emission. | background 1.00 | 0.04 | 0.03 | asserted 1.00 |
| These studies have demonstrated the great potential of statistical EOR observations, however, the sensitivity calculations for proposed low frequency radio arrays have been highly approximate. | gap 0.95 | 0.05 | 0.04 | asserted 1.00 |
| The formalism developed for interferometric measurements of the cosmic microwave background can be extended to three dimensions to naturally incorporate the line-of-sight information inherent in the EOR signal. | method 0.80 | 0.23 | 0.07 | asserted 0.82 |
| In this paper we demonstrate how to accurately calculate the EOR power spectrum sensitivity of an array, and develop scaling relationships which can be used to guide the design of EOR observatories. | contribution 1.00 | 0.96 | 0.56 | asserted 1.00 |
| The implications for antenna distribution, antenna size, and correlator requirements on the EOR sensitivity are detailed. | contribution 0.60 | 0.83 | 0.14 | asserted 0.97 |
What kind of paper the classifier reports this is: method or tool 0.68 · evidence from proof or derivation 1.00
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
Levels run
- P abstract
Not run
- S sections
- T body sentences
- C citations
- R cross-paper relations
How the labels were made
Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,290 input tokens.
Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. This record as JSON
Cited by 4 Pith papers
Reviewed papers on Pith that cite this one. The full citation record
- Detecting the Earliest Galaxies Through Two New Sources of 21cm Fluctuations astro-ph · Oct 2004
- Intensity fluctuations of radio halo in galaxy cluster: Insights from power spectrum estimation astro-ph.CO · Jul 2026
- Investigating radio source population and spatial characteristics of diffuse Galactic synchrotron emission in the GAMA-23 field with uGMRT Band-3 astro-ph.GA · Aug 2026
- Mitigating gain calibration errors from EoR observations with SKA1-Low AA* astro-ph.CO · Oct 2025
How the literature uses it
15 arXiv papers cite this in 17 sentences
Papers citing it · 13 sentences without a confident label
Uses its method or tool 2 papers
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To derive this noise temperature per pixel in [ref] we began with the thermal noise per visibility as given by Morales [ref] to arrive at the thermal noise per pixel for the brightness temperature.
The 21 cm Signature of Shock Heated and Diffuse Cosmic String Wakes · Diffuse Cosmic String Wakes · 0.90
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The 3D reconstructed power spectrum in Fourier space is given by [ref] :
Interferometric HI Intensity Mapping of the Late Time Universe with SKA-Mid · Results from the SKAO precursor MeerKAT telescope · 0.86
Compares with it 1 paper
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The scalings in this noise-dominated regime are in agreement with noise-only error estimates in the literature [ref] , although our constant factors differ slightly due to the FKP weighting scheme.
The Epoch of Reionization Window: II. Statistical Methods for Foreground Wedge Reduction · Separable estimators: minimizing the variance with the FKP approximation · 0.98
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