Updated galactic radio constraints on Dark Matter

Cirelli, Marco; Taoso, Marco

doi:10.1088/1475-7516/2016/07/041

Cited by 24 publications

(26 citation statements)

References 80 publications

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“…Looking for radio signals could be equally (if not more) important than searching for anomalous γ -ray production. Radio signatures have already ruled out GeV DM particles with thermal interactions, have constrained DM models in general (e.g., Boehm et al 2004;Crocker et al 2010;Boehm et al 2010;Fornengo et al 2012b;Bringmann et al 2014;Cirelli & Taoso 2016), and could further be used to probe the existence of extremely weakly interacting DM.…”

Section: Extremely Weakly Interacting Dm Candidatesmentioning

confidence: 99%

Fundamental physics with the Square Kilometre Array

Weltman

Bull

Camera

et al. 2020

Publ. Astron. Soc. Aust.

314

169

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The Square Kilometre Array (SKA) is a planned large radio interferometer designed to operate over a wide range of frequencies, and with an order of magnitude greater sensitivity and survey speed than any current radio telescope. The SKA will address many important topics in astronomy, ranging from planet formation to distant galaxies. However, in this work, we consider the perspective of the SKA as a facility for studying physics. We review four areas in which the SKA is expected to make major contributions to our understanding of fundamental physics: cosmic dawn and reionisation; gravity and gravitational radiation; cosmology and dark energy; and dark matter and astroparticle physics. These discussions demonstrate that the SKA will be a spectacular physics machine, which will provide many new breakthroughs and novel insights on matter, energy, and spacetime.

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Section: Extremely Weakly Interacting Dm Candidatesmentioning

confidence: 99%

Fundamental physics with the Square Kilometre Array

Weltman

Bull

Camera

et al. 2020

Publ. Astron. Soc. Aust.

314

169

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“…To compute the IC sky maps, we turn off the propagation of non-MSP CRs. As a first step, we made detailed comparisons of the results obtained with our modified GALPROP package against the literature [33,34,60,61].…”

Section: A Galprop Codementioning

confidence: 99%

Inverse Compton emission from millisecond pulsars in the Galactic bulge

2019

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Analyses of Fermi Gamma-Ray Space Telescope data have revealed a source of excess diffuse gamma rays towards the Galactic center that extends up to roughly ±20 degrees in latitude. The leading theory postulates that this GeV excess is the aggregate emission from a large number of faint millisecond pulsars (MSPs). The electrons and positrons (e ± ) injected by this population could produce detectable inverse-Compton (IC) emissions by up-scattering ambient photons to gamma-ray energies. In this work, we calculate such IC emissions using GALPROP. A triaxial three-dimensional model of the bulge stars obtained from a fit to infrared data is used as a tracer of the putative MSP population. This model is compared against one in which the MSPs are spatially distributed as a Navarro-Frenk-White squared profile. We show that the resulting spectra for both models are indistinguishable, but that their spatial morphologies have salient recognizable features. The IC component above ∼TeV energies carries information on the spatial morphology of the injected e ± . Such differences could potentially be used by future high-energy gamma-ray detectors such as the Cherenkov Telescope Array to provide a viable multiwavelength handle for the MSP origin of the GeV excess.

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“…5 Constraining DM with galactic radio surveys This section is based on the study in [5], where we perform a detailed analysis of the synchrotron signals produced by dark matter annihilations (and decays). We consider different set-ups for the propagation of electrons and positrons, the galactic magnetic field and dark matter properties.…”

Section: Ricap16mentioning

confidence: 99%

Gamma-ray signatures of Dark Matter

Cirelli

2017

EPJ Web Conf.

Self Cite

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Abstract. I review the ways in which Dark Matter can produce gamma-rays (and lower energy photons) and I apply the considerations to three specific examples: the tests of multi-TeV pure-WIMP candidates based on high energy gamma-rays from the Galactic Center or dwarfs, the importance of bremsstrahlung emission for light DM, the updated constraints on DM from all-sky radio surveys of the Milky Way.

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Updated galactic radio constraints on Dark Matter

Cited by 24 publications

References 80 publications

Fundamental physics with the Square Kilometre Array

Fundamental physics with the Square Kilometre Array

Inverse Compton emission from millisecond pulsars in the Galactic bulge

Gamma-ray signatures of Dark Matter

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