Cosmology and Nongalactic Astrophysics · arXiv:2310.13740 v1 · submitted 20 Oct 2023
Cosmoglobe DR1. III. First full-sky model of polarized synchrotron emission from all WMAP and Planck LFI data
The paper says
“In summary, the novel Cosmoglobe DR1 synchrotron model is both more sensitive and systematically cleaner than similar previous models, and it has a more complete error description that is defined by a set of Monte Carlo posterior samples.”
from the abstract · picked out as the main claim by a classifier
Reviews
Reviews by people
No person has reviewed this paper on Pith yet. A scientist listed on Pith can review it for a fee, and their review is published here whatever it concludes.
The paper
Abstract
We present the first model of full-sky polarized synchrotron emission that is derived from all WMAP and Planck LFI frequency maps. The basis of this analysis is the set of end-to-end reprocessed Cosmoglobe Data Release 1 sky maps presented in a companion paper, which have significantly lower instrumental systematics than the legacy products from each experiment. We find that the resulting polarized synchrotron amplitude map has an average noise rms of 3.2 μK at 30 GHz and 2° FWHM, which is 30% lower than the recently released BeyondPlanck model that included only LFI+WMAP Ka-V data, and 29% lower than the WMAP K-band map alone. The mean B-to-E power spectrum ratio is 0.40 ± 0.02, with amplitudes consistent with those measured previously by Planck and QUIJOTE. Assuming a power law model for the synchrotron spectral energy distribution, and using the T–T plot method, we find a full-sky inverse noise-variance weighted mean of βs = −3.07 ± 0.07 between Cosmoglobe DR1 K-band and 30 GHz, in good agreement with previous estimates. In summary, the novel Cosmoglobe DR1 synchrotron model is both more sensitive and systematically cleaner than similar previous models, and it has a more complete error description that is defined by a set of Monte Carlo posterior samples. We believe that these products are preferable over previous Planck and WMAP products for all synchrotron-related scientific applications, including simulation, forecasting and component separation.
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. No sentence in this record was written by a model.
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 0.96 · states limitation 0.11 · human participants 0.01 · controlled comparison 0.55 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.99 · mentions code or data availability 0.09
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 |
|---|---|---|---|---|
| We present the first model of full-sky polarized synchrotron emission that is derived from all WMAP and Planck LFI frequency maps. | contribution 1.00 | 0.97 | 0.34 | asserted 1.00 |
| The basis of this analysis is the set of end-to-end reprocessed Cosmoglobe Data Release 1 sky maps presented in a companion paper, which have significantly lower instrumental systematics than the legacy products from each experiment. | method 0.97 | 0.27 | 0.03 | asserted 1.00 |
| We find that the resulting polarized synchrotron amplitude map has an average noise rms of $3.2\,\mathrm{\mu K}$ at 30 GHz and $2^{\circ}$ FWHM, which is 30% lower than the recently released BeyondPlanck model that included only LFI+WMAP Ka-V data, and 29% lower than the WMAP K-band map alone. | result 1.00 | 0.97 | 0.16 | asserted 1.00 |
| The mean $B$-to-$E$ power spectrum ratio is $0.40\pm0.02$, with amplitudes consistent with those measured previously by Planck and QUIJOTE. | result 1.00 | 0.92 | 0.07 | asserted 0.95 |
| Assuming a power law model for the synchrotron spectral energy distribution, and using the $T$--$T$ plot method, we find a full-sky inverse noise-variance weighted mean of $\beta_{\mathrm{s}}=-3.07\pm0.07$ between Cosmoglobe DR1 K-band and 30 GHz, in good agreement with previous estimates. | result 0.98 | 0.97 | 0.06 | asserted 1.00 |
| In summary, the novel Cosmoglobe DR1 synchrotron model is both more sensitive and systematically cleaner than similar previous models, and it has a more complete error description that is defined by a set of Monte Carlo posterior samples. | interpretation 0.71 | 0.85 | 0.74 | asserted 1.00 |
| We believe that these products are preferable over previous Planck and WMAP products for all synchrotron-related scientific applications, including simulation, forecasting and component separation. | interpretation 0.94 | 0.25 | 0.46 | hedged possibility 0.63 |
What kind of paper the classifier reports this is: dataset or benchmark 0.43 · evidence from analysis of existing data 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, 6,083 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 2 Pith papers
Reviewed papers on Pith that cite this one. The full citation record
- Robust paths to primordial $B$ modes in the presence of polarised point source contamination astro-ph.CO · Oct 2026
- The Coherent Magnetic Field of the Milky Way astro-ph.GA · Nov 2023
How the literature uses it
4 arXiv papers cite this in 13 sentences
Papers citing it · 7 sentences without a confident label
Uses its data or values 1 paper
-
As a further check, we generated another $ _s^ WK -CW$ map following the same fitting procedure, but substituting the and with their counterparts from the (CG) DR1 https://www.cosmoglobe.uio.no/products/cosmoglobe-dr1.htmlhttps://www.cosmoglobe.uio.no/products/cosmoglobe-dr1.html [ref] .
Sensitivity-Improved Polarization Maps at 40 GHz with CLASS and WMAP data · $β_s$ fitting results · 0.80
Compares with it 2 papers
-
More interesting is the comparison with maps of synchrotron amplitude and spectral index obtained from a combined analysis of Planck and WMAP data recently been published by [ref] , which are also available for download on a dedicated web site.[ cosmoglobe.uio.no/products/cosmoglobe-dr1.html ]
Planck data revisited: low-noise synchrotron polarisation maps from the WMAP and Planck space missions · Comparison with other polarised synchrotron maps · 1.00
-
We also noticed a flattening of $ _s$ in the Haze region [ref] for the $ _s^ WK- CW$, the $ _s$ from [ref] and the commander result in [ref] , but no obvious flattening for the $ _s^ WK- WKa$.
Sensitivity-Improved Polarization Maps at 40 GHz with CLASS and WMAP data · $β_s$ fitting results · 0.88
Cites it as support 1 paper
-
Xiong et al. [ref] document conformity effects in LLM-based social simulations, where agents adopt majority positions, consistent with our observation of debate capture.
Preserving Disagreement: Architectural Heterogeneity and Coherence Validation in Multi-Agent Policy Simulation · Related Work · 0.99
Cites it as background 1 paper
-
Several authors have attempted to map the synchrotron spectral index using existing data sets, but results are noisy and uncertain [ref] .
Planck data revisited: low-noise synchrotron polarisation maps from the WMAP and Planck space missions · Input observations and modeling assumptions · 0.92
What it cites · 13 sentences without a confident label
Compares with 1 paper
-
The results from this analysis are summarized in Fig. [ref] for the nominal priors, and here we also compare our results with corresponding results derived by QUIJOTE [ref] and CLASS [ref] .
CLASS Angular Power Spectra and Map-Component Analysis for 40 GHz Observations through 2022 · Parametric component estimation · 0.99
Cites as background 3 papers
-
There has been phenomonal observational success over the past few decades, from the satellite-based [ref] , Wilkinson Microwave Anisotropy Probe () [ref] , and [ref] experiments, to the many sub-orbital experiments including for instance ACT [ref] , BICEP/Keck [ref] , CLASS [ref] , QUIJOTE [ref] , SPIDER [ref] , SPT [ref] and many others.
The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters · Introduction · 0.99
-
There has been phenomonal observational success over the past few decades, from the satellite-based [ref] , Wilkinson Microwave Anisotropy Probe () [ref] , and [ref] experiments, to the many sub-orbital experiments including for instance ACT [ref] , BICEP/Keck [ref] , CLASS [ref] , QUIJOTE [ref] , SPIDER [ref] , SPT [ref] and many others.
CLASS Angular Power Spectra and Map-Component Analysis for 40 GHz Observations through 2022 · Introduction · 0.99
-
Future experiments, including the LiteBIRD satellite [ref] , Simons Observatory [ref] and CMB-S4 [ref] , will create the most sensitive maps of the polarized sky yet, resulting in stringent constraints on primordial gravitational waves.
CMB-S4 Science Case, Reference Design, and Project Plan · Introduction · 0.98
Challenges and discussion
Know something about this paper? Leave a comment.
Come back by email
A short list of the week's newly reviewed papers. Nothing is sent until you confirm from your inbox, and every email has a link that stops it. No account.
No comments yet.
Sign in to comment