104 citations · 413 across the 11 of their papers we have counts for
11 papers
Estimating the local dark matter density in a non-axisymmetric wobbling disc
S. Sivertsson, J. I. Read, H. Silverwood +6
The density of dark matter near the Sun is important for experiments hunting for dark matter particles in the laboratory, and for constraining the local shape of the Milky Way's da…
Measuring the Matter Density of the Galactic Disk Using Stellar Streams
Axel Widmark, Khyati Malhan, Pablo F. de Salas +1
We present a novel method for determining the total matter surface density of the Galactic disk by analysing the kinematics of a dynamically cold stellar stream that passes through…
The Local Dark Matter Density from SDSS-SEGUE G-dwarfs
Sofia Sivertsson, Hamish Silverwood, Justin I. Read +2
We derive the local dark matter density by applying the integrated Jeans equation method from Silverwood et al. (2016) to SDSS-SEGUE G-dwarf data processed and presented by Büdenbe…
A non-parametric method for measuring the local dark matter density
Hamish Silverwood, Sofia Sivertsson, Pascal Steger +2
We present a new method for determining the local dark matter density using kinematic data for a population of tracer stars. The Jeans equation in the -direction is integrated t…
WIMP diffusion in the solar system including solar WIMP-nucleon scattering
Sofia Sivertsson, Joakim Edsjo
Dark matter in the form of Weakly Interacting Massive Particles (WIMPs) can be captured by the Sun and the Earth, sink to their cores, annihilate and produce neutrinos that can be…
Observational constraints on supermassive dark stars
Erik Zackrisson, Pat Scott, Claes-Erik Rydberg +6
Some of the first stars could be cooler and more massive than standard stellar models would suggest, due to the effects of dark matter annihilation in their cores. It has recently…
The WIMP capture process for dark stars in the early universe
Sofia Sivertsson, Paolo Gondolo
The first stars to form in the universe may have been dark stars, powered by dark matter annihilation instead of nuclear fusion. The initial amount of dark matter gathered by the s…
Finding high-redshift dark stars with the James Webb Space Telescope
Erik Zackrisson, Pat Scott, Claes-Erik Rydberg +7
The first stars in the history of the Universe are likely to form in the dense central regions of 10^5-10^6 Msolar cold dark matter halos at z=10-50. The annihilation of dark matte…
Accurate calculations of the WIMP halo around the Sun and prospects for its gamma-ray detection
Sofia Sivertsson, Joakim Edsjo
Galactic weakly interacting massive particles (WIMPs) may scatter off solar nuclei to orbits gravitationally bound to the Sun. Once bound, the WIMPs continue to lose energy by repe…
Gamma rays from ultracompact primordial dark matter minihalos
Pat Scott, Sofia Sivertsson
Ultracompact minihalos have recently been proposed as a new class of dark matter structure. These minihalos would be produced by phase transitions in the early Universe or features…
Accurate calculations of the WIMP halo around the Sun and prospects for gamma ray detection
Sofia Sivertsson, Joakim Edsjö
Weakly interacting massive particles (WIMPs) can be captured by heavenly objects, like the Sun. Under the process of being captured by the Sun, they will build up a population of W…