Dark matter candidates: a ten-point test

Taoso, Marco; Bertone, Gianfranco; Masiero, A.

doi:10.1088/1475-7516/2008/03/022

Cited by 169 publications

(153 citation statements)

References 476 publications

(795 reference statements)

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“…Many DM candidates have been recently proposed and studied by cosmologists and particle physicists alike [e.g., 4, 5] to explain or constrain the properties of DM [4,5]. Despite that, the origin and nature of DM still remains unknown.…”

Section: Introductionmentioning

confidence: 99%

Gravitational effects of condensed dark matter on strange stars

Panotopoulos

Lopes

2017

Phys. Rev. D

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In the present work we study the gravitational effects of condensed dark matter on strange stars. We consider self-interacting dark matter particles with properties consistent with current observational constraints, and dark matter inside the star is modelled as a Bose-Einstein condensate. We integrate numerically the Tolman-Oppenheimer-Volkoff equations in the two-fluid formalism assuming that strange stars are made of up to 4 per cent of dark matter. It is shown that for a mass of the dark matter particles in the range 50M eV − 160M eV strange stars are characterized by a maximum mass and radius similar to the ones found for neutron stars.

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Section: Introductionmentioning

confidence: 99%

Gravitational effects of condensed dark matter on strange stars

Panotopoulos

Lopes

2017

Phys. Rev. D

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“…This term was introduced in 1933 by Zwicky [1] studying clusters of galaxies, and much later in 1970 Rubin and Ford [2] with optical studies of M31 made the case for DM in galaxies. Although as of today there are many candidates [3], the origin and nature of DM still remains a mystery, and comprises one of the biggest challenges in modern theoretical cosmology. For a review on dark matter see e.g.…”

Section: Introductionmentioning

confidence: 99%

Constraining the parameter space of branon dark matter using white dwarf stars

Panotopoulos

Lopes

2017

Phys. Rev. D

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In the present work we study the branon dark matter particles impact on compact objects, and we provide the first constraints of the parameter space using white dwarf stars. The branon dark matter model is characterized by two free parameters, namely the branon mass particle M and the brane tension factor f . The latter determines the strength of the interaction of branon dark matter particles with baryons. By considering a typical white dwarf star we were able to obtain constraints on branon dark matter and compare with current limits obtained by direct detection searches and dark matter abundance. In particular our results show that i) for heavy branons with a mass M > 10GeV white dwarfs fail to provide us with bounds better than current limits from DM direct detection searches, and ii) for light branons in the mass range 2keV < M < 1GeV , which cannot be probed neither with current dark matter experiments nor with the next generation of detectors, the dark matter abundance constrain determines f as a function of M in the range 0.1GeV < M < 1GeV for the branon mass and 1GeV < f < 5GeV for the brane tension factor. Furthermore, our findings indicate that the limits from white dwarfs are not stronger than the dark matter abundance constrain.

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“…Unfortunately, their nature is totally unknown. The most popular candidates for cold dark matter are WIMPs (weakly interacting massive particles), which can be very heavy [87,88]. Alternatively, cold dark matter can be made of very light particles, like axions [87] or axion-like particles (ALPs) [89,90].…”

Section: Nature Of Dark Mattermentioning

confidence: 99%