Dr Mark Lovell's Outputs (5)

Exploiting flux ratio anomalies to probe warm dark matter in future large-scale surveys (2019)
Journal Article
Harvey, D., Valkenburg, W., Tamone, A., Boyarsky, A., Courbin, F., & Lovell, M. (2020). Exploiting flux ratio anomalies to probe warm dark matter in future large-scale surveys. Monthly Notices of the Royal Astronomical Society, 491(3), 4247-4253. https://doi.org/10.1093/mnras/stz3305

Flux ratio anomalies in strong gravitationally lensed quasars constitute a unique way to probe the abundance of non-luminous dark matter haloes, and hence the nature of dark matter. In this paper, we identify double-imaged quasars as a statistically... Read More about Exploiting flux ratio anomalies to probe warm dark matter in future large-scale surveys.

The lensing properties of subhaloes in massive elliptical galaxies in sterile neutrino cosmologies (2019)
Journal Article
Despali, G., Lovell, M., Vegetti, S., Crain, R. A., & Oppenheimer, B. D. (2020). The lensing properties of subhaloes in massive elliptical galaxies in sterile neutrino cosmologies. Monthly Notices of the Royal Astronomical Society, 491(1), 1295-1310. https://doi.org/10.1093/mnras/stz3068

We use high-resolution hydrodynamical simulations run with the EAGLE model of galaxy formation to study the differences between the properties of – and subsequently the lensing signal from – subhaloes of massive elliptical galaxies at redshift 0.2, i... Read More about The lensing properties of subhaloes in massive elliptical galaxies in sterile neutrino cosmologies.

Diverse dark matter density at sub-kiloparsec scales in Milky Way satellites: Implications for the nature of dark matter (2019)
Journal Article
Zavala, J., Lovell, M. R., Vogelsberger, M., & Burger, J. D. (2019). Diverse dark matter density at sub-kiloparsec scales in Milky Way satellites: Implications for the nature of dark matter. Physical Review D, 100(6), Article 063007. https://doi.org/10.1103/physrevd.100.063007

Milky Way (MW) satellites reside within dark matter (DM) subhalos with a broad distribution of circular velocity profiles. This diversity is enhanced with the inclusion of ultrafaint satellites, which seemingly have very high DM densities, albeit wit... Read More about Diverse dark matter density at sub-kiloparsec scales in Milky Way satellites: Implications for the nature of dark matter.

Simulating the Dark Matter Decay Signal from the Perseus Galaxy Cluster (2019)
Journal Article
Lovell, M. R., Iakubovskyi, D., Barnes, D., Bose, S., Frenk, C. S., Theuns, T., & Hellwing, W. A. (2019). Simulating the Dark Matter Decay Signal from the Perseus Galaxy Cluster. Astrophysical Journal Letters, 875(2), Article L24. https://doi.org/10.3847/2041-8213/ab13ac

the C-EAGLE simulations of galaxy clusters to predict the flux, width, and shape of a dark matter decay line, paying particular attention to the unexplained 3.55keV line detected in the spectra of some galaxies and clusters, and the upcoming XRISM X... Read More about Simulating the Dark Matter Decay Signal from the Perseus Galaxy Cluster.

The signal of decaying dark matter with hydrodynamical simulations (2019)
Journal Article
Lovell, M. R., Barnes, D., Bahé, Y., Schaye, J., Schaller, M., Theuns, T., Bose, S., Crain, R. A., Vecchia, C. D., Frenk, C. S., Hellwing, W., Kay, S. T., Ludlow, A. D., & Bower, R. G. (2019). The signal of decaying dark matter with hydrodynamical simulations. Monthly Notices of the Royal Astronomical Society, 485(3), 4071-4089. https://doi.org/10.1093/mnras/stz691

Dark matter particles may decay, emitting photons. Drawing on the EAGLE family of hydrodynamic simulations of galaxy formation – including the APOSTLE and C-EAGLE simulations – we assess the systematic uncertainties and scatter on the decay flux from... Read More about The signal of decaying dark matter with hydrodynamical simulations.