REVIEW 4 major objections 6 minor 117 references
The Galactic Neutrino Sky: Predictions from Gamma-ray Source Populations
T0 review · 4 major / 6 minor · reviewed 2026-08-11 · deepseek-v4-flash
Pith's one-line read This paper claims that the inner-Galaxy excess of high-energy neutrinos seen by IceCube is produced by resolved and unresolved gamma-ray sources that are not powered by pulsars, with no additional renormalization of the diffuse emission…
desk verdict The core morphological argument is plausible and worth refereeing, but the paper's quantitative claims are weakened by a tuned smearing angle and a free hadronic fraction that make the 'no renormalization' headline misleading. read the letter →
The pith
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
The reading
What carries the argument
The load-bearing object is ReGal-γ, a spatial and spectral template of candidate hadronic Galactic neutrino sources assembled from gamma-ray catalogs spanning GeV to PeV energies. For every selected source, the paper assumes a hadronic fraction $\chi$ of the observed gamma-ray flux, converts it to per-flavor neutrino flux with the hadronic relation $E_\nu^2\,dN_\nu/dE_\nu \approx (\chi/2)\,E_\gamma^2\,dN_\gamma/dE_\gamma$ at $E_\gamma = 2E_\nu$, and combines these sources with the CRINGE diffuse model and unresolved-source models. Predicted cascade counts are obtained by convolving the flux maps with IceCube's effective area and smearing them by a 17.5° angle to account for cascade angular resolution; the comparison of the smeared longitudinal profile with IceCube's nine-bin cascade data is what carries the central claim.
What would settle it
Replace the fixed 17.5° smearing with the measured per-event angular uncertainty distribution of IceCube cascade events and recompute the predicted longitude counts; if the central-bin excess disappears, the claimed agreement depends on the tuned smearing. Alternatively, measure the cascade longitude profile above 100 TeV, where ReGal-γ predicts sources dominate over diffuse emission and the peak should narrow; if the observed peak does not narrow with energy, the source-dominance claim is falsified.
Extended reading notes
Core claim
The central claim is that the observed spectral and spatial distributions of Galactic-plane neutrinos can be simultaneously reproduced by an unrenormalized diffuse emission component plus a population of gamma-ray sources not powered by pulsars. The paper constructs ReGal-γ from resolved gamma-ray sources across 4FGL-DR4, HGPS, 1LHAASO, and 4HWC, filters out pulsars, pulsar wind nebulae, and extragalactic objects, and converts each source's gamma-ray spectrum into a per-flavor neutrino spectrum using $E_\nu^2\,dN_\nu/dE_\nu \approx (\chi/2)\,E_\gamma^2\,dN_\gamma/dE_\gamma$ at $E_\gamma = 2E_\nu$, with $\chi$ the hadronic fraction. The resulting source template peaks more sharply toward the inner Galaxy than diffuse templates, so the observed central excess can be fitted without applying extra renormalization factors to the diffuse model. The same conclusion is reached with an independent all-sky source template built from different catalogs, so the paper claims the result is robust to source-modeling choices.
Load-bearing premise
The agreement in the longitude profile rests on smearing every cascade template by a single 17.5° angle whose value was chosen to reproduce IceCube's reported model predictions; if that angle is not the true cascade angular response, the claimed match could change substantially.
Editorial extensions
If this is right
- The inner-Galaxy peak in IceCube's cascade data can be explained without extra scaling of the diffuse emission models, so previous fits requiring renormalization may have been compensating for missing source contributions.
- Resolved and unresolved non-pulsar gamma-ray sources, not the cosmic-ray sea alone, dominate the neutrino excess within |l| ≲ 20° and |b| ≲ 15°.
- The source population inferred from gamma-rays is more strongly concentrated toward the inner Galaxy than diffuse emission, making spatial morphology a separation tool for source versus diffuse components.
- An independent template constructed from different catalogs gives the same qualitative result, indicating the conclusion is robust against catalog and spectral-extrapolation choices.
- Future energy-dependent longitudinal and latitudinal neutrino measurements will constrain the hadronic fraction and the spatial distribution of Galactic neutrino sources.
Reading between the lines
- If the template is correct, the inner-Galaxy excess should be accompanied by individual neutrino hot spots coincident with the brightest non-pulsar gamma-ray sources (e.g., SNRs and unidentified TeV sources); a stacking search on those positions is a testable extension not performed in the paper.
- The 17.5° smearing prescription could be checked against per-event angular-error distributions from the cascade sample; applying the measured distribution instead of a single fixed angle would show whether the central-bin match is sensitive to that choice.
- A southern-sky very-high-energy survey should reveal more hadronic sources than current catalogs contain; adding them to ReGal-γ would increase the predicted inner-Galaxy neutrino flux and sharpen the predicted longitude peak.
- Because the paper treats the hadronic fraction as a free parameter between 0.5 and 1, the model's normalization is not uniquely predicted; the next test is to measure this fraction for individual source classes using the ratio of neutrino to gamma-ray flux.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper constructs a template (ReGal-γ) of resolved Galactic γ-ray sources from Fermi-LAT, H.E.S.S., LHAASO, and HAWC catalogs, excluding pulsar-associated and extragalactic sources, and combines it with a diffuse emission model (CRINGE) and two unresolved-source models. Assuming a hadronic fraction χ of each source's γ-ray flux, the authors predict the neutrino sky and compare the resulting inner-Galaxy spectrum and longitudinal cascade count profile with IceCube data. They claim that the template reproduces both the spectral energy distribution and the longitudinal profile without additional renormalization of the emission models, and they test robustness with an independent CTA template. The central morphological argument is that resolved non-pulsar sources are more concentrated toward the inner Galaxy than the diffuse emission, naturally producing the observed peak.
Significance. If established, the claim would be an important step in identifying the origin of the Galactic neutrino excess: it would imply that resolved hadronic γ-ray sources, not only diffuse cosmic-ray interactions, dominate the inner-Galaxy signal. The paper has genuine strengths: it systematically combines current multi-wavelength catalogs, provides a separate cross-check template, and presents energy-dependent spatial predictions that are falsifiable with future IceCube and KM3NeT data. The use of the standard multi-messenger relation (Eq. 1) is appropriate, and the explicit caveats about catalog incompleteness and sky-coverage asymmetries are welcome. However, two load-bearing elements—the hadronic fraction χ and the 17.5° cascade smearing angle—are not fully independent, which weakens the quantitative force of the 'no renormalization' claim.
major comments (4)
- [Section 3, Eq. (2), Figure 4] The 17.5° smearing angle used for all cascade templates is described as 'based on the angular uncertainties of the cascade events (Seen et al. 2025) and chosen to reproduce the model predictions reported by IceCube.' This wording indicates that the smearing kernel was tuned to match the benchmark IceCube predictions rather than derived independently from a validated detector response. Because the comparison in Figure 4 is a binned longitudinal profile, the smearing angle directly controls how much inner-Galaxy flux leaks into adjacent bins; a different or energy-dependent angular resolution could change the relative bin heights and potentially erase the claimed preference for the source-rich template. The authors should either use the detector-level angular response from Seen et al. (2025) without tuning, or show that the profile comparison is insensitive to the assumed smearing angle over a plausible range.
- [Section 3, Figure 3, Eq. (1)] The hadronic fraction χ is introduced as a free parameter and then effectively inferred from the same inner-Galaxy SED data: the text states that the flux 'can be explained ... for an average hadronic fraction of χ∼0.5–1.' Therefore the normalization of the source component is not a prediction; it is fit to the data. The abstract's claim that the model reproduces the IceCube SED 'without requiring additional renormalization of the emission models' is misleading because the source component carries a freely adjustable multiplicative factor. The authors should either present a proper fit for χ with uncertainties and goodness-of-fit, or rephrase the claim so that it refers only to the unrenormalized diffuse component.
- [Section 2.4, Model B] The unresolved-source Model B is rescaled to '50% of its original value' on the grounds that non-pulsar sources contribute approximately 50% of the TeV flux. This is an ad hoc correction with no propagated uncertainty, yet it enters directly into the inner-Galaxy flux predictions in Figures 3 and 4 and into the χ∼0.5–1 estimate. The authors should justify this factor more rigorously, or vary it in a sensitivity study to show that the central conclusion is robust to this modeling choice.
- [Section 3, Figure 4] The agreement between the model predictions and the IceCube longitudinal counts is assessed only visually ('can explain the excess'). With only nine longitudinal bins and correlated model components, a quantitative goodness-of-fit or likelihood comparison is needed to support the claim that the source-plus-diffuse model is preferred over diffuse-only models. In particular, the paper should report the test statistic or at least the bin-by-bin residuals for the models shown in Figure 4.
minor comments (6)
- [References] The reference for the IceCube data and model predictions, Abbasi et al. (2026), lists only 'https://arxiv.org/abs/tobeupdated'; this placeholder must be replaced with the actual arXiv identifier or journal reference before publication, as the analysis relies on those data.
- [Section 3, paragraph 1] There is a typo: 'hadronuclear interactions' should be 'hadronuclear interactions'.
- [Section 1] The sentence ending 'models of unresolved sources (Section 2.4.' is missing a closing parenthesis; it should read 'Section 2.4).'
- [Figure 3 caption and text] The caption states that the solid lines assume χ=1, while the text says the data can be explained for χ∼0.5–1. Please clarify whether the plotted curves are at χ=1 and whether the χ range is an inference from the vertical offset between the curves and the IceCube band.
- [Section 2.2] The term 'CT template' is used inconsistently; earlier the section is titled 'CTA Template'. Please unify the terminology.
- [Appendix B, Figure 5] The caption says the combined CRINGE plus unresolved-source model is 'normalized to the IceCube best-fit measurement', but the body text emphasizes no renormalization. Please clarify what is meant by 'normalized' here, since the main claim concerns the absence of renormalization.
Circularity Check
The cascade-profile comparison is partly calibrated: the 17.5° smearing angle is chosen to reproduce IceCube's model predictions, and the hadronic fraction χ is tuned to the measured normalization, so the claimed 'reproduction' is not fully predictive.
-
fitted input called prediction
[Section 3, paragraph after Eq. (2), before Figure 4]
"Additionally, to account for reconstruction effects, we smear the flux templates by 17.5° across all energies when calculating Nν for cascades. The smearing angle is based on the angular uncertainties of the cascade events (Seen et al. 2025) and chosen to reproduce the model predictions reported by IceCube."
The longitudinal count profile is the observable used to claim that the source-rich template explains the inner-Galaxy excess. The 17.5° smearing kernel that shapes this profile is not independently derived; it is explicitly 'chosen to reproduce the model predictions reported by IceCube,' i.e., calibrated to the same benchmark predictions being tested. The smearing controls how much inner-Galaxy flux leaks into adjacent longitude bins, so the agreement in Figure 4 is partly a consequence of this fitted angle. An independently determined or energy-dependent angular response could change the relative bin heights and alter the claimed preference for the source-rich template.
-
fitted input called prediction
[Section 3 (Figure 3) and Appendix B]
"We find that the calculated inner-Galaxy flux can be explained by the sum of an unrenormalized diffuse component and the contribution from hadronic γ-ray sources, including both resolved and unresolved populations, for an average hadronic fraction of χ∼0.5–1. ... To match the measured normalization by IceCube, χ can be tuned for either the resolved or unresolved sources components."
The abstract claims the model reproduces the spectral energy distribution 'without requiring additional renormalization of the emission models,' but the hadronic fraction χ is a free parameter explicitly tuned to match IceCube's measured normalization. Hence the source-component normalization entering the SED comparison is fitted to the data by construction, so the spectral agreement is a fit rather than a genuine prediction. The spatial shape of the source template retains independent content, but the 'no renormalization' wording overstates what is predicted.
full rationale
The paper is not wholly circular: ReGal-γ and the CTA template are constructed from external γ-ray catalogs, the predicted spatial concentration toward the inner Galaxy is an independent morphological statement, and the robustness check with a differently constructed template provides outside support. However, two load-bearing inputs are tuned rather than predicted. The 17.5° cascade smearing angle is explicitly chosen to reproduce IceCube's model predictions, and the hadronic fraction χ is left free and adjusted to match the measured inner-Galaxy normalization. These fitted elements weaken the claim that the SED and longitude profile are reproduced 'without additional renormalization.' The morphological comparison is therefore partially calibrated, not a blind prediction, which warrants a score of 6 rather than 0-2.
Assumptions & free parameters
free parameters (3)
- χ (hadronic fraction) =
0.5-1 (inferred from inner-Galaxy SED; figures use χ=1)
- Cascade smearing angle =
17.5°
- Model B flux rescaling =
0.5
assumptions (5)
- domain assumption Neutrino flux is related to hadronic gamma-ray flux by E_nu^2 dN_nu/dE_nu ≈ (χ/2) E_gamma^2 dN_gamma/dE_gamma at E_gamma = 2E_nu (Eq. 1).
- ad hoc to paper The hadronic gamma-ray component has the same spectral shape as the total gamma-ray spectrum.
- domain assumption Selected gamma-ray sources without pulsar associations are candidate hadronic neutrino emitters.
- domain assumption The CRINGE diffuse emission model correctly describes the diffuse neutrino contribution.
- domain assumption The IceCube effective area and 12-year livetime of the ICEMAN sample, and the reported longitudinal data, are correct.
Cite this review
Pith. "Pith review of The Galactic Neutrino Sky: Predictions from Gamma-ray Source Populations." pith.science (2026). https://pith.science/paper/K4SZ2ZDW
@misc{pith2026260809849,
author = {Pith},
title = {Pith review of: The Galactic Neutrino Sky: Predictions from Gamma-ray Source Populations},
year = {2026},
howpublished = {\url{https://pith.science/paper/K4SZ2ZDW}},
note = {Machine review of arXiv:2608.09849}
}
abstract
High-energy neutrino emission from the Galactic plane has been detected at a significance of $5.7\sigma$, with a prominent excess toward the inner Galaxy. We show that this excess can be naturally explained by the spatial distribution of Galactic neutrino sources. By combining $\gamma$-ray source catalogs spanning GeV-PeV energies and selecting candidate hadronic emitters, we construct ReGal-$\gamma$, a template of resolved Galactic $\gamma$-ray sources that may also produce high-energy neutrinos. Compared with models of Galactic diffuse emission, ReGal-$\gamma$ predicts a neutrino intensity that is more strongly concentrated toward the inner Galaxy. Combined with models of diffuse cosmic-ray emission and unresolved $\gamma$-ray sources, the template reproduces both the spectral energy distribution and the Galactic longitudinal count profile reported by IceCube without requiring additional renormalization of the emission models. We test this result using an independent $\gamma$-ray source template constructed from different catalogs and find that our conclusion is robust against uncertainties in source modeling. Future measurements of the energy-dependent longitudinal and latitudinal neutrino distributions will provide tighter constraints on these models and help determine the spatial distribution of Galactic neutrino sources.
Figures
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Reference graph
Works this paper leans on
-
[1]
Mares, A. and Lemoine-Goumard, M. and Acero, F. and Clark, C. J. and Devin, J. and Gabici, S. and Gelfand, J. D. and Green, D. A. and Grondin, M.-H. , year=. Constraining the Origin of the Puzzling Source HESS J1640−465 and the PeVatron Candidate HESS J1641−463 Using Fermi-Large Area Telescope Observations , volume=. The Astrophysical Journal , publisher=...
-
[2]
TeV Emission of Galactic Plane Sources with HAWC and H.E.S.S. , keywords =. doi:10.3847/1538-4357/abf64b , archivePrefix =. 2107.01425 , primaryClass =
-
[3]
Decomposing the Origin of TeV-PeV Emission from the Galactic Plane: Implications of Multimessenger Observations. , keywords =. doi:10.3847/2041-8213/ad012f , archivePrefix =. 2307.02905 , primaryClass =
-
[4]
Astrophysics of cosmic rays
-
[5]
Quantitative constraint on the source contribution to the Galactic diffuse gamma rays detected by the Tibet air shower array. arXiv e-prints , keywords =. doi:10.48550/arXiv.2309.16078 , archivePrefix =. 2309.16078 , primaryClass =
-
[7]
M. Cataldo and G. Pagliaroli and V. Vecchiotti and F. L. Villante , title =. The Astrophysical Journal , abstract =. 2020 , month =. doi:10.3847/1538-4357/abc0ee , url =
-
[8]
Multimessenger Implications of Sub-PeV Diffuse Galactic Gamma-Ray Emission. , keywords =. doi:10.3847/1538-4357/ac11f0 , archivePrefix =. 2104.09491 , primaryClass =
-
[9]
Fermi-LAT Observations of the Diffuse -Ray Emission: Implications for Cosmic Rays and the Interstellar Medium. , keywords =. doi:10.1088/0004-637X/750/1/3 , archivePrefix =. 1202.4039 , primaryClass =
Show all 117 references
-
[11]
, keywords =
Acceleration of petaelectronvolt protons in the Galactic Centre. , keywords =. doi:10.1038/nature17147 , archivePrefix =. 1603.07730 , primaryClass =
-
[13]
, year = 2021, month = jun, volume =
Ultrahigh-energy photons up to 1.4 petaelectronvolts from 12 -ray Galactic sources. , year = 2021, month = jun, volume =. doi:10.1038/s41586-021-03498-z , adsurl =
2021 doi
-
[14]
, keywords =
3HWC: The Third HAWC Catalog of Very-high-energy Gamma-Ray Sources. , keywords =. doi:10.3847/1538-4357/abc2d8 , archivePrefix =. 2007.08582 , primaryClass =
2007 arXiv
-
[15]
, keywords =
HI4PI: A full-sky H I survey based on EBHIS and GASS. , keywords =. doi:10.1051/0004-6361/201629178 , archivePrefix =. 1610.06175 , primaryClass =
-
[16]
, keywords =
Study of the Diffuse Gamma-Ray Emission from the Galactic Plane with ARGO-YBJ. , keywords =. doi:10.1088/0004-637X/806/1/20 , archivePrefix =. 1507.06758 , primaryClass =
-
[17]
arXiv e-prints , keywords =
Measurement of ultra-high-energy diffuse gamma-ray emission of the Galactic plane from 10 TeV to 1 PeV with LHAASO-KM2A. arXiv e-prints , keywords =. doi:10.48550/arXiv.2305.05372 , archivePrefix =. 2305.05372 , primaryClass =
-
[18]
, keywords =
Incremental Fermi Large Area Telescope Fourth Source Catalog. , keywords =. doi:10.3847/1538-4365/ac6751 , archivePrefix =. 2201.11184 , primaryClass =
-
[19]
Three-dimensional distribution of the ISM in the Milky Way Galaxy: 1
Nakanishi, Hiroyuki and Sofue, Yoshiaki. Three-dimensional distribution of the ISM in the Milky Way Galaxy: 1. The HI disk. Publ. Astron. Soc. Jap. 2003. doi:10.1093/pasj/55.1.191. arXiv:astro-ph/0304338
2003 arXiv
-
[20]
IceCube Results and Perspective for Neutrinos from LHAASO Sources
Fang, Ke and Halzen, Francis. IceCube Results and Perspective for Neutrinos from LHAASO Sources. 2024. arXiv:2404.15944
2024 arXiv
-
[21]
Cosmic-ray propagation with DRAGON2 : I
Evoli, Carmelo and Gaggero, Daniele and Vittino, Andrea and Di Bernardo, Giuseppe and Di Mauro, Mattia and Ligorini, Arianna and Ullio, Piero and Grasso, Dario. Cosmic-ray propagation with DRAGON2 : I. numerical solver and astrophysical ingredients. JCAP. 2017. doi:10.1088/147...
2017 arXiv
-
[22]
and others
Alfaro, R. and others. Search for Joint Multimessenger Signals from Potential Galactic Cosmic-Ray Accelerators with HAWC and IceCube. Astrophys. J. 2024. doi:10.3847/1538-4357/ad812f. arXiv:2405.03817
2024
-
[23]
Gamma-ray sky points to radial gradients in cosmic-ray transport , volume=
Gaggero, Daniele and Urbano, Alfredo and Valli, Mauro and Ullio, Piero , year=. Gamma-ray sky points to radial gradients in cosmic-ray transport , volume=. Physical Review D , publisher=. doi:10.1103/physrevd.91.083012 , number=
-
[24]
, keywords =
Unresolved Sources Naturally Contribute to PeV Gamma-Ray Diffuse Emission Observed by Tibet AS. , keywords =. doi:10.3847/1538-4357/ac4df4 , archivePrefix =. 2107.14584 , primaryClass =
-
[27]
and Abhir, J
Abe, S. and Abhir, J. and Abhishek, A. and Acero, F. and Acharyya, A. and Adam, R. and Aguasca-Cabot, A. and Agudo, I. and Aguirre-Santaella, A. and Alfaro, J. and Alvarez-Crespo, N. and Alves Batista, R. and Amans, J.-P. and Amato, E. and Ambrosi, G. and Ambrosino, F. and Ang...
-
[28]
Evidence for PeV Proton Acceleration from Fermi-LAT Observations of SNR G106.3+2.7
Fang, Ke and Kerr, Matthew and Blandford, Roger and Fleischhack, Henrike and Charles, Eric. Evidence for PeV Proton Acceleration from Fermi-LAT Observations of SNR G106.3+2.7. Phys. Rev. Lett. 2022. doi:10.1103/PhysRevLett.129.071101. arXiv:2208.05457
2022 arXiv
-
[29]
and Aharonian, F
Abramowski, A. and Aharonian, F. and Ait Benkhali, F. and Akhperjanian, A. G. and Angüner, E. O. and Backes, M. and Balenderan, S. and Balzer, A. and Barnacka, A. and Becherini, Y. and Becker Tjus, J. and Berge, D. and Bernhard, S. and Bernlöhr, K. and Birsin, E. and Biteau, J...
-
[31]
, keywords =
Diffuse Emission of Galactic High-energy Neutrinos from a Global Fit of Cosmic Rays. , keywords =. doi:10.3847/1538-4357/acc1e2 , archivePrefix =. 2211.15607 , primaryClass =
-
[32]
Galactic plane survey
The H.E.S.S. Galactic plane survey. , keywords =. doi:10.1051/0004-6361/201732098 , archivePrefix =. 1804.02432 , primaryClass =
-
[33]
Where are Milky Way's hadronic PeVatrons?
Sudoh, Takahiro and Beacom, John F. Where are Milky Way's hadronic PeVatrons?. Phys. Rev. D. 2023. doi:10.1103/PhysRevD.107.043002. arXiv:2209.03970
2023 arXiv
-
[34]
Galactic and Extragalactic Analysis of the Astrophysical Muon Neutrino Flux with 12.3 years of IceCube Track Data
Fuerst, Philipp Michael and others. Galactic and Extragalactic Analysis of the Astrophysical Muon Neutrino Flux with 12.3 years of IceCube Track Data. PoS. 2023. doi:10.22323/1.444.1046
2023 doi
- [35]
-
[36]
Measurement of very-high-energy diffuse gamma-ray emission from |b|<5 degree of the Galactic plane with LHAASO-WCDA
Li, Huicai. Measurement of very-high-energy diffuse gamma-ray emission from |b|<5 degree of the Galactic plane with LHAASO-WCDA. PoS. doi:10.22323/1.444.0672
-
[37]
High-Energy Neutrino Signatures of Newborn Pulsars In the Local Universe
Fang, Ke. High-Energy Neutrino Signatures of Newborn Pulsars In the Local Universe. JCAP. 2015. doi:10.1088/1475-7516/2015/06/004. arXiv:1411.2174
2015 arXiv
-
[38]
, keywords =
Diffuse fluxes of cosmic high-energy neutrinos. , keywords =. doi:10.1086/156919 , adsurl =
-
[39]
and others
Albert, A. and others. Extended TeV Halos May Commonly Exist around Middle-Aged Pulsars. Phys. Rev. Lett. 2025. doi:10.1103/PhysRevLett.134.171005. arXiv:2505.00175
2025 arXiv
-
[42]
, keywords =
Neutrino Fluxes from Different Classes of Galactic Sources. , keywords =. doi:10.3847/1538-4357/ad4960 , archivePrefix =. 2403.05288 , primaryClass =
-
[43]
Galactic diffuse neutrino emission from sources beyond the discovery horizon
Ambrosone, Antonio and Groth, Kathrine M rch and Peretti, Enrico and Ahlers, Markus. Galactic diffuse neutrino emission from sources beyond the discovery horizon. Phys. Rev. D. 2024. doi:10.1103/PhysRevD.109.043007. arXiv:2306.17285
2024 arXiv
-
[44]
, keywords =
Unveiling the Nature of Galactic TeV Sources with IceCube Results. , keywords =. doi:10.3847/2041-8213/acff60 , archivePrefix =. 2307.07451 , primaryClass =
-
[45]
Aartsen, M. G. and others. Characteristics of the diffuse astrophysical electron and tau neutrino flux with six years of IceCube high energy cascade data. Phys. Rev. Lett. 2020. doi:10.1103/PhysRevLett.125.121104. arXiv:2001.09520
2020
-
[46]
Nature Astronomy , keywords =
The Milky Way revealed to be a neutrino desert by the IceCube Galactic plane observation. Nature Astronomy , keywords =. doi:10.1038/s41550-023-02128-0 , archivePrefix =. 2306.17275 , primaryClass =
-
[47]
Modelling the Galactic very-high-energy -ray source population
Steppa, Constantin and Egberts, Kathrin. Modelling the Galactic very-high-energy -ray source population. Astron. Astrophys. 2020. doi:10.1051/0004-6361/202038172. arXiv:2010.03305
2020 arXiv
-
[48]
Planck 2013 results. XIII. Galactic CO emission. , keywords =. doi:10.1051/0004-6361/201321553 , archivePrefix =. 1303.5073 , primaryClass =
2013 arXiv
-
[49]
and others
Abbasi, R. and others. Observation of high-energy neutrinos from the Galactic plane. 2026. arXiv:to be updated
2026
-
[50]
and others
Abbasi, R. and others. Observation of high-energy neutrinos from the Galactic plane. Science. 2023. doi:10.1126/science.adc9818. arXiv:2307.04427
2023
-
[51]
36th International Cosmic Ray Conference (ICRC2019) , year = 2019, series =
Measurement of the diffuse astrophysical muon-neutrino spectrum with ten years of IceCube data. 36th International Cosmic Ray Conference (ICRC2019) , year = 2019, series =
2019
-
[52]
arXiv e-prints , keywords =
Galactic cosmic ray propagation: sub-PeV diffuse gamma-ray and neutrino emission. arXiv e-prints , keywords =
-
[53]
Aiello and S.E
S. Aiello and S.E. Akrame and F. Ameli and E. Sensitivity of the KM3NeT/ARCA neutrino telescope to point-like neutrino sources , journal =. 2019 , issn =. doi:https://doi.org/10.1016/j.astropartphys.2019.04.002 , url =
2019 doi
-
[54]
, keywords =
Fermi Large Area Telescope Third Source Catalog. , keywords =. doi:10.1088/0067-0049/218/2/23 , archivePrefix =. 1501.02003 , primaryClass =
-
[55]
arXiv e-prints , keywords =
IceCube-Gen2: The Window to the Extreme Universe. arXiv e-prints , keywords =
-
[56]
arXiv e-prints , keywords =
Implications of the detection of sub-PeV diffuse rays from the Galactic disk apart from discrete sources. arXiv e-prints , keywords =
-
[57]
the search for a prompt component
Atmospheric leptons. the search for a prompt component. European Physical Journal Web of Conferences , year = 2013, series =. doi:10.1051/epjconf/20125209004 , archivePrefix =. 1303.1431 , primaryClass =
2013
-
[58]
, keywords =
Parameterization of , e ^ +/- , and Neutrino Spectra Produced by p-p Interaction in Astronomical Environments. , keywords =. doi:10.1086/505189 , archivePrefix =. astro-ph/0605581 , primaryClass =
-
[59]
, keywords =
EGRET Observations of the Diffuse Gamma-Ray Emission from the Galactic Plane. , keywords =. doi:10.1086/304012 , adsurl =
-
[60]
, keywords =
IceCube and HAWC constraints on very-high-energy emission from the Fermi bubbles. , keywords =. doi:10.1103/PhysRevD.96.123007 , archivePrefix =. 1704.03869 , primaryClass =
-
[61]
arXiv e-prints , keywords =
The Payload for Ultrahigh Energy Observations (PUEO): A White Paper. arXiv e-prints , keywords =
-
[62]
arXiv e-prints , keywords =
The POEMMA (Probe of Extreme Multi-Messenger Astrophysics) Observatory. arXiv e-prints , keywords =
-
[63]
Science China Physics, Mechanics, and Astronomy , keywords =
The Giant Radio Array for Neutrino Detection (GRAND): Science and design. Science China Physics, Mechanics, and Astronomy , keywords =. doi:10.1007/s11433-018-9385-7 , archivePrefix =. 1810.09994 , primaryClass =
-
[64]
arXiv e-prints , keywords =
Baikal-GVD: status and prospects. arXiv e-prints , keywords =
-
[65]
Journal of Physics G Nuclear Physics , keywords =
Letter of intent for KM3NeT 2.0. Journal of Physics G Nuclear Physics , keywords =. doi:10.1088/0954-3899/43/8/084001 , archivePrefix =. 1601.07459 , primaryClass =
-
[66]
Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC. Phys. Rev. Lett. 2020. doi:10.1103/PhysRevLett.124.021102. arXiv:1909.08609
2020 arXiv
-
[67]
, keywords =
Closing in on the origin of Galactic cosmic rays using multimessenger information. , keywords =. doi:10.1016/j.physrep.2020.05.002 , archivePrefix =. 2002.00964 , primaryClass =
2020 arXiv
-
[68]
, keywords =
Cosmic-ray energy spectrum and composition up to the ankle: the case for a second Galactic component. , keywords =. doi:10.1051/0004-6361/201628894 , archivePrefix =. 1605.03111 , primaryClass =
-
[69]
Astroparticle Physics , keywords =
The shape of the cosmic ray proton spectrum. Astroparticle Physics , keywords =. doi:10.1016/j.astropartphys.2020.102441 , archivePrefix =. 1911.01311 , primaryClass =
2020
-
[70]
arXiv e-prints , keywords =
KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays. arXiv e-prints , keywords =
-
[71]
, keywords =
Cosmic ray spectrum and composition from PeV to EeV using 3 years of data from IceTop and IceCube. , keywords =. doi:10.1103/PhysRevD.100.082002 , archivePrefix =. 1906.04317 , primaryClass =
1906 arXiv
-
[72]
M. G. Aartsen and M. Ackermann and J. Adams and J. A. Aguilar and M. Ahlers and M. Ahrens and I. Al Samarai and D. Altmann and K. Andeen and T. Anderson and I. Ansseau and G. Anton and C. Argüelles and J. Auffenberg and S. Axani and H. Bagherpour and X. Bai and J. P. Barron an...
-
[74]
Progress of Theoretical Physics , year = 1952, month = nov, volume =
Propagation of the Cosmic Radiation through Intersteller Space. Progress of Theoretical Physics , year = 1952, month = nov, volume =. doi:10.1143/ptp/8.5.571 , adsurl =
1952 doi
-
[75]
First Detection of sub-PeV Diffuse Gamma Rays from the Galactic Disk: Evidence for Ubiquitous Galactic Cosmic Rays beyond PeV Energies , author =. Phys. Rev. Lett. , volume =. 2021 , month =. doi:10.1103/PhysRevLett.126.141101 , url =
2021 doi
-
[76]
, keywords =
Constraints on the distribution of supernova remnants with Galactocentric radius. , keywords =. doi:10.1093/mnras/stv1885 , archivePrefix =. 1508.02931 , primaryClass =
-
[77]
II: anisotropy
Diffusive propagation of cosmic rays from supernova remnants in the Galaxy. II: anisotropy. , keywords =. doi:10.1088/1475-7516/2012/01/011 , archivePrefix =. 1105.4529 , primaryClass =
2012 arXiv
-
[78]
Mapping and modeling the Galactic disk
The Milky Way's stellar disk. Mapping and modeling the Galactic disk. , keywords =. doi:10.1007/s00159-013-0061-8 , archivePrefix =. 1301.3168 , primaryClass =
-
[79]
, keywords =
Probing the Galactic origin of the IceCube excess with gamma rays. , keywords =. doi:10.1103/PhysRevD.90.023010 , archivePrefix =. 1309.4077 , primaryClass =
-
[80]
, keywords =
Interstellar Dust Grains. , keywords =. doi:10.1146/annurev.astro.41.011802.094840 , archivePrefix =. astro-ph/0304489 , primaryClass =
-
[81]
, keywords =
Absorption of very high energy gamma rays in the Milky Way. , keywords =. doi:10.1103/PhysRevD.94.063009 , archivePrefix =. 1608.01587 , primaryClass =
-
[82]
Astroparticle Physics , keywords =
On the knee in the energy spectrum of cosmic rays. Astroparticle Physics , keywords =. doi:10.1016/S0927-6505(02)00198-6 , archivePrefix =. astro-ph/0210453 , primaryClass =
-
[83]
, keywords =
Development of the Model of Galactic Interstellar Emission for Standard Point-source Analysis of Fermi Large Area Telescope Data. , keywords =. doi:10.3847/0067-0049/223/2/26 , archivePrefix =. 1602.07246 , primaryClass =
-
[84]
, keywords =
Galactic diffuse gamma rays meet the PeV frontier. , keywords =. doi:10.1051/0004-6361/202243714 , archivePrefix =. 2203.15759 , primaryClass =
-
[85]
Universe , keywords =
The Hunt for Pevatrons: The Case of Supernova Remnants. Universe , keywords =. doi:10.3390/universe7090324 , archivePrefix =. 2110.07956 , primaryClass =
-
[86]
Abeysekara, A. U. and others. Very high energy particle acceleration powered by the jets of the microquasar SS 433. Nature. 2018. doi:10.1038/s41586-018-0565-5. arXiv:1810.01892
2018 arXiv
-
[87]
Science , keywords =
Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth. Science , keywords =. doi:10.1126/science.aan4880 , archivePrefix =. 1711.06223 , primaryClass =
-
[88]
Galactic Plane Survey
The population of TeV pulsar wind nebulae in the H.E.S.S. Galactic Plane Survey. , keywords =. doi:10.1051/0004-6361/201629377 , archivePrefix =. 1702.08280 , primaryClass =
-
[89]
Nature Astronomy , keywords =
Resolving the Crab pulsar wind nebula at teraelectronvolt energies. Nature Astronomy , keywords =. doi:10.1038/s41550-019-0910-0 , archivePrefix =. 1909.09494 , primaryClass =
1909 arXiv
-
[90]
Science , keywords =
Peta-electron volt gamma-ray emission from the Crab Nebula. Science , keywords =. doi:10.1126/science.abg5137 , archivePrefix =. 2111.06545 , primaryClass =
- [91]
-
[92]
The First LHAASO Catalog of Gamma-Ray Sources
Cao, Zhen and others. The First LHAASO Catalog of Gamma-Ray Sources. Astrophys. J. Suppl. 2024. doi:10.3847/1538-4365/acfd29. arXiv:2305.17030
2024
-
[93]
and others
Abreu, P. and others. Science Prospects for the Southern Wide-field Gamma-ray Observatory: SWGO. 2025. arXiv:2506.01786
2025
-
[94]
arXiv e-prints , keywords =
The First LHAASO Catalog of Gamma-Ray Sources. arXiv e-prints , keywords =. doi:10.48550/arXiv.2305.17030 , archivePrefix =. 2305.17030 , primaryClass =
-
[95]
, keywords =
Constraints on Gamma-Ray Emission from the Galactic Plane at 300 TeV. , keywords =. doi:10.1086/305096 , archivePrefix =. astro-ph/9703063 , primaryClass =
-
[96]
, keywords =
Measurement of the Crab Nebula Spectrum Past 100 TeV with HAWC. , keywords =. doi:10.3847/1538-4357/ab2f7d , archivePrefix =. 1905.12518 , primaryClass =
1905 arXiv
-
[97]
Galactic Gamma-Ray Diffuse Emission at TeV energies with HAWC Data
Abeysekara, Anushka Udara and others. Galactic Gamma-Ray Diffuse Emission at TeV energies with HAWC Data. PoS. 2021. doi:10.22323/1.395.0835
2021 doi
-
[98]
Borione and M
A. Borione and M. A. Catanese and M. C. Chantell and C. E. Covault and J. W. Cronin and B. E. Fick and L. F. Fortson and J. Fowler and M. A. K. Glasmacher and K. D. Green and D. B. Kieda and J. Matthews and B. J. Newport and D. Nitz and R. A. Ong and S. Oser and D. Sinclair an...
-
[99]
Pulsar TeV Halos Explain the Diffuse TeV Excess Observed by Milagro , author =. Phys. Rev. Lett. , volume =. 2018 , month =
2018
-
[100]
36th International Cosmic Ray Conference (ICRC2019) , year = 2019, series =
IceCube Search for Galactic Neutrino Sources based on HAWC Observations of the Galactic Plane. 36th International Cosmic Ray Conference (ICRC2019) , year = 2019, series =
2019
-
[101]
arXiv e-prints , keywords =
Origin of Galactic sub-PeV diffuse gamma-ray emission: Constraints from high-energy neutrino observations. arXiv e-prints , keywords =
-
[102]
, keywords =
Galactic neutrinos in the TeV to PeV range. , keywords =. doi:10.1103/PhysRevD.93.013009 , archivePrefix =. 1505.03156 , primaryClass =
-
[103]
, keywords =
The Gamma-Ray and Neutrino Sky: A Consistent Picture of Fermi-LAT, Milagro, and IceCube Results. , keywords =. doi:10.1088/2041-8205/815/2/L25 , archivePrefix =. 1504.00227 , primaryClass =
-
[104]
Astroparticle Physics , year = 1993, month = jul, volume =
Diffuse radiation from cosmic ray interactions in the galaxy. Astroparticle Physics , year = 1993, month = jul, volume =. doi:10.1016/0927-6505(93)90014-5 , adsurl =
1993 doi
-
[105]
arXiv e-prints , keywords =
The Large High Altitude Air Shower Observatory (LHAASO) Science White Paper. arXiv e-prints , keywords =
-
[106]
, keywords =
Identification of the TeV Gamma-Ray Source ARGO J2031+4157 with the Cygnus Cocoon. , keywords =
-
[107]
Review of Particle Physics , author =. Phys. Rev. D , volume =. 2018 , month =. doi:10.1103/PhysRevD.98.030001 , url =
2018 doi
-
[108]
Bulletin of the American Astronomical Society , year = 2019, volume =
The Southern Wide-Field Gamma-Ray Observatory (SWGO): A Next-Generation Ground-Based Survey Instrument. Bulletin of the American Astronomical Society , year = 2019, volume =
2019
-
[109]
, keywords =
GeV-TeV Counterparts of SS 433/W50 from Fermi-LAT and HAWC Observations. , keywords =. doi:10.3847/2041-8213/ab62b8 , archivePrefix =. 2001.03599 , primaryClass =
2001 arXiv
-
[110]
, keywords =
Fermi Large Area Telescope Fourth Source Catalog. , keywords =. doi:10.3847/1538-4365/ab6bcb , archivePrefix =. 1902.10045 , primaryClass =
1902 arXiv
-
[112]
, keywords =
A multi-component model for observed astrophysical neutrinos. , keywords =. doi:10.1051/0004-6361/201832731 , archivePrefix =. 1801.07277 , primaryClass =
-
[113]
Abeysekara, A. U. and others. Author Correction: HAWC observations of the acceleration of very-high-energy cosmic rays in the Cygnus Cocoon [doi: 10.1038/s41550-021-01318-y]. Nature Astron. 2021. doi:10.1038/s41550-021-01361-9. arXiv:2103.06820
2021 arXiv
-
[114]
Bartoli and P
B. Bartoli and P. Bernardini and X. J. Bi and P. Branchini and A. Budano and P. Camarri and Z. Cao and R. Cardarelli and S. Catalanotti and S. Z. Chen and T. L. Chen and P. Creti and S. W. Cui and B. Z. Dai and A. D'Amone and Danzengluobu and I. De Mitri and B. D'Ettorre Piazz...
-
[115]
Ackermann and others , title =
M. Ackermann and others , title =. doi:10.1088/0004-637x/750/1/3 , url =
-
[116]
, keywords =
Joint Constraints on Galactic Diffuse Neutrino Emission from the ANTARES and IceCube Neutrino Telescopes. , keywords =. doi:10.3847/2041-8213/aaeecf , archivePrefix =. 1808.03531 , primaryClass =
-
[117]
and others , year=
Abdollahi, S. and others , year=. Fermi Large Area Telescope Fourth Source Catalog , volume=. The Astrophysical Journal Supplement Series , publisher=. doi:10.3847/1538-4365/ab6bcb , number=
-
[118]
2024 , eprint=
Fermi Large Area Telescope Fourth Source Catalog Data Release 4 (4FGL-DR4) , author=. 2024 , eprint=
2024
-
[119]
2026 , eprint=
The Fourth HAWC Catalog of Very-High-Energy Gamma-Ray Sources , author=. 2026 , eprint=
2026
-
[120]
and others , year=
Archer, A. and others , year=. HESS J1943+213: An Extreme Blazar Shining through the Galactic Plane , volume=. The Astrophysical Journal , publisher=. doi:10.3847/1538-4357/aacbd0 , number=
-
[121]
Gammapy: A Python package for gamma-ray astronomy , volume=
Donath, Axel and others , year=. Gammapy: A Python package for gamma-ray astronomy , volume=. doi:10.1051/0004-6361/202346488 , journal=
-
[122]
and others , year=
Ajello, M. and others , year=. 3FHL: The Third Catalog of Hard Fermi-LAT Sources , volume=. The Astrophysical Journal Supplement Series , publisher=. doi:10.3847/1538-4365/aa8221 , number=
-
[123]
Abeysekara, A. U. and others , year=. The 2HWC HAWC Observatory Gamma-Ray Catalog , volume=. The Astrophysical Journal , publisher=. doi:10.3847/1538-4357/aa7556 , number=
-
[124]
2025 , eprint=
Enhancing searches for astrophysical neutrino sources in IceCube with machine learning and improved spatial modeling , author=. 2025 , eprint=
2025
-
[125]
2024 , issn =
An ultrahigh-energy γ-ray bubble powered by a super PeVatron , journal =. 2024 , issn =. doi:https://doi.org/10.1016/j.scib.2023.12.040 , url =
2024 doi
-
[126]
2026 , eprint=
Search for an all-sky and a Galactic Ridge diffuse neutrino emission with the first 2 years of KM3NeT/ARCA data , author=. 2026 , eprint=
2026
-
[127]
and Alves, S
Albert, A. and Alves, S. and André, M. and Ardid, M. and Ardid, S. and Aubert, J.-J. and Aublin, J. and Baret, B. and Basa, S. and Becherini, Y. and Belhorma, B. and Bendahman, M. and Benfenati, F. and Bertin, V. and Biagi, S. and Bissinger, M. and Boumaaza, J. and Bouta, M. a...
Reviewed August 11, 2026 · model on record in the stance chip above.
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