107 citations · 466 across the 22 of their papers we have counts for
9 papers · 1 filter
New Frontiers in Cosmology and Galaxy Formation: Challenges for the Future
Richard Ellis, Joseph Silk
(Abridged) Cosmology faces three distinct challenges in the next decade. (1) The dark sector, both dark matter and dark energy, dominates the Universe. Key questions include determ…
Solving the cosmic lithium problems with primordial late-decaying particles
Daniel Cumberbatch, Kazuhide Ichikawa, Masahiro Kawasaki +3
We investigate the modifications to predictions for the abundances of light elements from standard Big-Bang nucleosynthesis when exotic late-decaying particles with lifetimes excee…
Accounting for the Unresolved X-ray Background with Sterile Neutrino Dark Matter
Daniel Cumberbatch, Joseph Silk
We consider a scenario where keV sterile neutrinos constitute all of the currently inferred dark matter abundance, whose radiative decays could potentially account for the flux con…
Monolithic or hierarchical star formation? A new statistical analysis
Marios Kampakoglou, Roberto Trotta, Joe Silk
We consider an analytic model of cosmic star formation which incorporates supernova feedback, gas accretion and enriched outflows, reproducing the history of cosmic star formation,…
A new test of the light dark matter hypothesis
Celine Boehm, Joseph Silk
Detection of a surprisingly high flux of positron annihilation radiation from the inner galaxy has motivated the proposal that dark matter is made of weakly interacting light parti…
Constraints on CPT violation from WMAP three year polarization data: a wavelet analysis
Paolo Cabella, Paolo Natoli, Joseph Silk
We perform a wavelet analysis of the temperature and polarization maps of the Cosmic Microwave Background (CMB) delivered by the WMAP experiment in search for a parity violating si…