Can the morphology of gamma-ray emission distinguish annihilating from decaying dark matter?

Celine Boehm; Joseph Silk; Timur Delahaye

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Can the morphology of gamma-ray emission distinguish annihilating from decaying dark matter?

Celine Boehm, Timur Delahaye, Joseph Silk

Astrophysics of Galaxies · Submitted 5 Mar 2010

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

The authors' main claim Our main conclusion is that distinguishing annihilating from decaying dark matter may only be possible if the propagation parameters correspond to the most optimistic diffusion models.

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arXiv ID1003.1225 (version 1)

Pith IDA3MCHE6A, Pith's permanent record of this paper and its review

CitationCeline Boehm, Joseph Silk, Timur Delahaye. "Can the morphology of gamma-ray emission distinguish annihilating from decaying dark matter?." arXiv:1003.1225 (2010). https://pith.science/paper/A3MCHE6A

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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-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,339 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.95 · human participants 0.01 · controlled comparison 0.16 · randomized assignment 0.01 · states quantitative result 0.13 · compares with prior results 0.23 · mentions code or data availability 0.02.

The abstract, sentence by sentence

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

The recent results from the PAMELA, ATIC, FERMI and HESS experiments have focused attention on the possible existence of high energy cosmic ray e^+ e^- that may originate from dark matter (DM) annihilations or decays in the Milky Way. Here we examine the morphology of the gamma-ray emission after propagation of the electrons generated by both annihilating and decaying dark matter models. We focus on photon energies of 1 GeV, 10 GeV, 50 GeV (relevant for the FERMI satellite) and consider different propagation parameters. Our main conclusion is that distinguishing annihilating from decaying dark matter may only be possible if the propagation parameters correspond to the most optimistic diffusion models. In addition, we point to examples where morphology can lead to an erroneous interpretation of the source injection energy.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	The recent results from the PAMELA, ATIC, FERMI and HESS experiments have focused attention on the possible existence of high energy cosmic ray e^+ e^- that may originate from dark matter (DM) annihilations or decays in the Milky Way.	background 1.00	0.04	0.01	hedged possibility 0.96
s1	Here we examine the morphology of the gamma-ray emission after propagation of the electrons generated by both annihilating and decaying dark matter models.	contribution 0.97	0.91	0.01	asserted 0.74
s2	We focus on photon energies of 1 GeV, 10 GeV, 50 GeV (relevant for the FERMI satellite) and consider different propagation parameters.	method 0.96	0.77	0.02	asserted 0.61
s3	Our main conclusion is that distinguishing annihilating from decaying dark matter may only be possible if the propagation parameters correspond to the most optimistic diffusion models.	result 0.71	0.89	0.99	hedged possibility 0.99
s4	In addition, we point to examples where morphology can lead to an erroneous interpretation of the source injection energy.	result 0.76	0.86	0.02	asserted 0.79

What kind of paper the classifier reports this is: simulation study 0.91 · evidence from simulation or computation 0.98.

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arXiv listing abstract v1

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full text
figures and tables
references and citing sentences
relations to other papers

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P abstract

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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

The recent results from the PAMELA, ATIC, FERMI and HESS experiments have focused attention on the possible existence of high energy cosmic ray e^+ e^- that may originate from dark matter (DM) annihilations or decays in the Milky Way. Here we examine the morphology of the gamma-ray emission after propagation of the electrons generated by both annihilating and decaying dark matter models. We focus on photon energies of 1 GeV, 10 GeV, 50 GeV (relevant for the FERMI satellite) and consider different propagation parameters. Our main conclusion is that distinguishing annihilating from decaying dark matter may only be possible if the propagation parameters correspond to the most optimistic diffusion models. In addition, we point to examples where morphology can lead to an erroneous interpretation of the source injection energy.

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References

How the literature uses it

9 arXiv papers cite this in 10 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 · 8 sentences without a confident label

Cites it as support 1 paper

Starlight is brightest towards the Galactic center; together with the geometry of the Galactic cosmic-ray diffusion zone this causes the ICS dark matter signal to be elongated and aligned with the Galactic plane – in contrast to the approximately spherical prompt component of the signal, making it potentially difficult to discriminate from an ICS signal from dark matter annihilation [ref] .

Indirect Searches for Decaying Dark Matter · Inverse Compton Scattering · 0.98

Cites it as background 1 paper

Many efforts [ref] have been devoted to extract indirect dark matter signatures or to set limits on a large class of WIMP models by investigating the Fermi-LAT diffuse gamma-ray measurements.

Inverse Compton gamma-rays from Galactic dark matter annihilation: Anisotropy signatures · Introduction · 0.80

What it cites · 2 sentences without a confident label

Uses the method or tool of 2 papers

To generate these maps, we apply the propagation scheme introduced by [ref] , modified according to [ref] for primary electrons.

Cosmic Rays below Z=30 in a diffusion model: new constraints on propagation parameters · Producing gamma-ray maps · 0.99
To generate these maps, we apply the propagation scheme introduced by [ref] , modified according to [ref] for primary electrons.

Inverse Compton Emission from Galactic Supernova Remnants: Effect of the Interstellar Radiation Field · Producing gamma-ray maps · 0.99

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