SKA-Phase 1 sensitivity to synchrotron radio emission from multi-TeV Dark Matter candidates

Cembranos, J. A. R.; Cruz-Dombriz, Álvaro de la; Gammaldi, Viviana; Méndez-Isla, Miguel

doi:10.1016/j.dark.2019.100448

Cited by 23 publications

(38 citation statements)

References 81 publications

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“…Thus, for the TeV energy scale new research windows will be opened by the current generation of cosmic-ray observatories (e.g., H.E.S.S. [339][340][341], IceCube [342]) and the next generation of experiments, e.g., Cherenkov Telescope Array (CTA) [343,344] and the Square Kilometre Array (SKA) [345]. These experiments, beside the detection, will able to constraint the WIMPS mass to much higher value than the current one.…”

Section: The Rotation Curves Profiles and The Nature Of Dark Mattermentioning

confidence: 99%

Einstein, Planck and Vera Rubin: Relevant Encounters Between the Cosmological and the Quantum Worlds

et al. 2021

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In Cosmology and in Fundamental Physics there is a crucial question like: where the elusive substance that we call Dark Matter is hidden in the Universe and what is it made of? that, even after 40 years from the Vera Rubin seminal discovery [1] does not have a proper answer. Actually, the more we have investigated, the more this issue has become strongly entangled with aspects that go beyond the established Quantum Physics, the Standard Model of Elementary particles and the General Relativity and related to processes like the Inflation, the accelerated expansion of the Universe and High Energy Phenomena around compact objects. Even Quantum Gravity and very exotic Dark Matter particle candidates may play a role in framing the Dark Matter mystery that seems to be accomplice of new unknown Physics. Observations and experiments have clearly indicated that the above phenomenon cannot be considered as already theoretically framed, as hoped for decades. The Special Topic to which this review belongs wants to penetrate this newly realized mystery from different angles, including that of a contamination of different fields of Physics apparently unrelated. We show with the works of this ST that this contamination is able to guide us into the required new Physics. This review wants to provide a good number of these “paths or contamination” beyond/among the three worlds above; in most of the cases, the results presented here open a direct link with the multi-scale dark matter phenomenon, enlightening some of its important aspects. Also in the remaining cases, possible interesting contacts emerges. Finally, a very complete and accurate bibliography is provided to help the reader in navigating all these issues.

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Section: The Rotation Curves Profiles and The Nature Of Dark Mattermentioning

confidence: 99%

Einstein, Planck and Vera Rubin: Relevant Encounters Between the Cosmological and the Quantum Worlds

et al. 2021

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“…3 DM-induced emission may also be expected in radio due to synchrotron radiation from secondary particles [48][49][50][51]; yet the high density of radio sources would make any potential association probably very challenging.…”

Section: Dm Constraintsmentioning

confidence: 99%

Constraints to Dark Matter Annihilation from High-Latitude HAWC Unidentified Sources

Coronado-Blázquez

2019

Galaxies

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The ΛCDM cosmological framework predicts the existence of thousands of subhalos in our own Galaxy not massive enough to retain baryons and become visible. Yet, some of them may outshine in gamma rays provided that the dark matter is made of weakly interacting massive particles (WIMPs), that would self-annihilate and would appear as unidentified gamma-ray sources (unIDs) in gamma-ray catalogs. Indeed, unIDs have proven to be competitive targets for dark matter searches with gamma rays. In this work, we focus on the three high-latitude (|b| ≥ 10 o ) sources present in the 2HWC catalog of the High Altitude Water Cherenkov (HAWC) observatory with no clear associations at other wavelenghts. Indeed, only one of these sources, 2HWC J1040+308, is found to be above the HAWC detection threshold when considering 760 days of data, i.e., a factor 1.5 more exposure time than in the original 2HWC catalog. Other gamma-ray instruments such as Fermi-LAT or VERITAS at lower energies do not detect the source. Also, this unID is reported as spatially extended, making it even more interesting in a dark matter search context. While waiting for more data that may shed further light on the nature of this source, we set competitive upper limits on the annihilation cross section by comparing this HAWC unID to expectations based on state-of-the-art N-body cosmological simulations of the Galactic subhalo population. We find these constraints to be particularly competitive for heavy WIMPs, i.e., masses above ∼ 25 (40) TeV in the case of the bb (τ + τ − ) annihilation channel, reaching velocity-averaged cross section values of 2 · 10 −25 (5 · 10 −25 ) cm 3 s −1 . Although far from testing the thermal relic cross section value, the obtained limits are independent and nicely complementary to those from radically different DM analyses and targets, demonstrating once again the high potential of this DM search approach.

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“…The purple dashed-dotted line represents the estimated branon sensitivity for 500 h observation on the dSph Draco with the future CTA [38]. The estimated sensitivity for 1000 h observation on the classical dSph Draco with the planned SKA, assuming the W + W − annihilation mode, are represented by the yellow dotted line [37].…”

Section: Resultsmentioning

confidence: 99%

“…The analysis of AMS-02 e + e − data excludes the orange region [36]. Both exclusion regions were translated to the σv parameter space from [37]. The purple dashed-dotted line represents the estimated branon sensitivity for 500 h observation on the dSph Draco with the future CTA [38].…”

Section: Resultsmentioning

confidence: 99%

Constraining branon dark matter from observations of the Segue 1 dwarf spheroidal galaxy with the MAGIC telescopes

Miener,

Nieto,

Gammaldi

et al. 2022

Preprint

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We present the first search for signatures of brane-world extra-dimensional dark matter (DM) in the very-high-energy gamma-ray band by scrutinizing observations of the dwarf spheroidal galaxy Segue 1 with the Major Atmospheric Gamma Imaging Cherenkov (MAGIC) telescope system. Branons are new degrees of freedom that appear within flexible brane-world models: they are weakly interacting massive particles and natural DM candidates. The ground-based gamma-ray telescopes MAGIC could indirectly detect branon DM in the multi-TeV mass range by observing secondary products of DM annihilation into Standard Model particles. In the absence of a signal, we place constraints on the branon DM parameter space by using a binned likelihood analysis of almost 160-hours deep exposure on the Segue 1 dwarf spheroidal galaxy by the MAGIC telescopes. Our most stringent limit to the thermallyaveraged annihilation cross-section (at 95% confidence level) corresponds to σv 1.4 × 10 −23 cm 3 s −1 at a branon mass of ∼ 0.7 TeV.

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SKA-Phase 1 sensitivity to synchrotron radio emission from multi-TeV Dark Matter candidates

Cited by 23 publications

References 81 publications

Einstein, Planck and Vera Rubin: Relevant Encounters Between the Cosmological and the Quantum Worlds

Einstein, Planck and Vera Rubin: Relevant Encounters Between the Cosmological and the Quantum Worlds

Constraints to Dark Matter Annihilation from High-Latitude HAWC Unidentified Sources

Constraining branon dark matter from observations of the Segue 1 dwarf spheroidal galaxy with the MAGIC telescopes

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