Fermion or Boson Dark Matter?
Open Access
- 1 January 2020
- journal article
- research article
- Published by Scientific Research Publishing, Inc. in International Journal of Astronomy and Astrophysics
- Vol. 10 (03), 203-223
- https://doi.org/10.4236/ijaa.2020.103011
Abstract
We measure properties of dark matter in four well motivated scenarios: fermions with ultra-relativistic thermal equilibrium (URTE), bosons with URTE, fermions with non-relativistic thermal equilibrium (NRTE), and bosons with NRTE. We attempt to discriminate between these four scenarios with studies of spiral galaxy rotation curves, and galaxy stellar mass distributions. The measurements show evidence for boson dark matter with a significance of 3.5σ, and obtain no significant discrimination between URTE and NRTE.Keywords
This publication has 20 references indexed in Scilit:
- Lyman-alpha forests cool warm dark matterJournal of Cosmology and Astroparticle Physics, 2016
- THE EVOLUTION OF THE GALAXY STELLAR MASS FUNCTION AT z = 4–8: A STEEPENING LOW-MASS-END SLOPE WITH INCREASING REDSHIFTThe Astrophysical Journal, 2016
- The galaxy stellar mass function at 3.5 ≤z≤ 7.5 in the CANDELS/UDS, GOODS-South, and HUDF fieldsAstronomy & Astrophysics, 2015
- Reproducing properties of MW dSphs as descendants of DM-free TDGsMonthly Notices of the Royal Astronomical Society, 2014
- A lower bound on the mass of dark matter particlesJournal of Cosmology and Astroparticle Physics, 2009
- HIGH-RESOLUTION ROTATION CURVES AND GALAXY MASS MODELS FROM THINGSThe Astronomical Journal, 2008
- Dark matter transfer function: Free streaming, particle statistics, and memory of gravitational clusteringPhysical Review D, 2008
- Ellipsoidal collapse and an improved model for the number and spatial distribution of dark matter haloesMonthly Notices of the Royal Astronomical Society, 2001
- Large-scale bias and the peak background splitMonthly Notices of the Royal Astronomical Society, 1999
- Formation of Galaxies and Clusters of Galaxies by Self-Similar Gravitational CondensationThe Astrophysical Journal, 1974