Outputs (7)

Ruling out the light weakly interacting massive particle explanation of the Galactic 511 keV line (2016)
Journal Article
Wilkinson, R., Vincent, A., Boehm, C., & McCabe, C. (2016). Ruling out the light weakly interacting massive particle explanation of the Galactic 511 keV line. Physical Review D, 94(10), Article 103525. https://doi.org/10.1103/physrevd.94.103525

Over the past few decades, an anomalous 511 keV gamma-ray line has been observed from the center of the Milky Way. Dark matter (DM) in the form of light (≲10  MeV) weakly interacting massive particles (WIMPs) annihilating into electron-positron pairs... Read More about Ruling out the light weakly interacting massive particle explanation of the Galactic 511 keV line.

Dark matter–radiation interactions: the structure of Milky Way satellite galaxies (2016)
Journal Article
Schewtschenko, J., Baugh, C., Wilkinson, R., Boehm, C., Pascoli, S., & Sawala, T. (2016). Dark matter–radiation interactions: the structure of Milky Way satellite galaxies. Monthly Notices of the Royal Astronomical Society, 461(3), 2282-2287. https://doi.org/10.1093/mnras/stw1078

In the thermal dark matter (DM) paradigm, primordial interactions between DM and Standard Model particles are responsible for the observed DM relic density. In Boehm et al. (2014), we showed that weak-strength interactions between DM and radiation (p... Read More about Dark matter–radiation interactions: the structure of Milky Way satellite galaxies.

Exploring dark matter microphysics with galaxy surveys (2015)
Journal Article
Escudero, M., Mena, O., Vincent, A., Wilkinson, R., & Boehm, C. (2015). Exploring dark matter microphysics with galaxy surveys. Journal of Cosmology and Astroparticle Physics, 2015(09), https://doi.org/10.1088/1475-7516/2015/09/034

We use present cosmological observations and forecasts of future experiments to illustrate the power of large-scale structure (LSS) surveys in probing dark matter (DM) microphysics and unveiling potential deviations from the standard ΛCDM scenario. T... Read More about Exploring dark matter microphysics with galaxy surveys.

Dark matter-radiation interactions: the impact on dark matter haloes (2015)
Journal Article
Schewtschenko, J., Wilkinson, R., Baugh, C., Boehm, C., & Pascoli, S. (2015). Dark matter-radiation interactions: the impact on dark matter haloes. Monthly Notices of the Royal Astronomical Society, 449(4), 3587-3596. https://doi.org/10.1093/mnras/stv431

Interactions between dark matter (DM) and radiation (photons or neutrinos) in the early Universe suppress density fluctuations on small mass scales. Here, we perform a thorough analysis of structure formation in the fully non-linear regime using N-bo... Read More about Dark matter-radiation interactions: the impact on dark matter haloes.

Using the Milky Way satellites to study interactions between cold dark matter and radiation (2014)
Journal Article
Boehm, C., Schewtschenko, J., Wilkinson, R., Baugh, C., & Pascoli, S. (2014). Using the Milky Way satellites to study interactions between cold dark matter and radiation. Monthly Notices of the Royal Astronomical Society: Letters, 445(1), L31-L35. https://doi.org/10.1093/mnrasl/slu115

The cold dark matter (CDM) model faces persistent challenges on small scales. In particular, the model significantly overestimates the number of satellite galaxies around the Milky Way. Attempts to solve this problem remain controversial and have eve... Read More about Using the Milky Way satellites to study interactions between cold dark matter and radiation.

Constraining dark matter-neutrino interactions using the CMB and large-scale structure (2014)
Journal Article
Wilkinson, R., Boehm, C., & Lesgourgues, J. (2014). Constraining dark matter-neutrino interactions using the CMB and large-scale structure. Journal of Cosmology and Astroparticle Physics, 2014(05), https://doi.org/10.1088/1475-7516/2014/05/011

We present a new study on the elastic scattering cross section of dark matter (DM) and neutrinos using the latest cosmological data from Planck and large-scale structure experiments. We find that the strongest constraints are set by the Lyman-alpha f... Read More about Constraining dark matter-neutrino interactions using the CMB and large-scale structure.

Using the CMB angular power spectrum to study Dark Matter-photon interactions (2014)
Journal Article
Wilkinson, R., Lesgourgues, J., & Boehm, C. (2014). Using the CMB angular power spectrum to study Dark Matter-photon interactions. Journal of Cosmology and Astroparticle Physics, 2014(04), https://doi.org/10.1088/1475-7516/2014/04/026

In this paper, we explore the impact of Dark Matter-photon interactions on the CMB angular power spectrum. Using the one-year data release of the Planck satellite, we derive an upper bound on the Dark Matter-photon elastic scattering cross section of... Read More about Using the CMB angular power spectrum to study Dark Matter-photon interactions.