32 citations · 92 across the 5 of their papers we have counts for
5 papers
Neutrino Lump Fluid in Growing Neutrino Quintessence
Youness Ayaita, Maik Weber, Christof Wetterich
Growing neutrino quintessence addresses the "why now" problem of dark energy by assuming that the neutrinos are coupled to the dark energy scalar field. The coupling mediates an at…
Structure Formation and Backreaction in Growing Neutrino Quintessence
Youness Ayaita, Maik Weber, Christof Wetterich
A dependence of the neutrino masses on the dark energy scalar field could provide a solution to the why now problem of dark energy. The dynamics of the resulting cosmological model…
Investigating clustering dark energy with 3d weak cosmic shear
Youness Ayaita, Bjoern Malte Schaefer, Maik Weber
As observational evidence increasingly consolidates the case for a cosmological constant being the source of the Universe's accelerated expansion, the question whether, and if so,…
Peculiar Velocity Anomaly from Forces Beyond Gravity?
Youness Ayaita, Maik Weber, Christof Wetterich
We address recently reported anomalously large bulk flows on scales of 100 Mpc/h and beyond. These coherent motions of galaxies challenge the standard LCDM concordance model as wel…
Too few spots in the cosmic microwave background
Youness Ayaita, Maik Weber, Christof Wetterich
We investigate the abundance of large-scale hot and cold spots in the WMAP-5 temperature maps and find considerable discrepancies compared to Gaussian simulations based on the LCDM…