16 citations · 30 across the 4 of their papers we have counts for
5 papers
Linear Perturbations in a coupled cosmon-bolon cosmology
Joschka Beyer
We investigate linear perturbations in the recently proposed cosmon-bolon model of coupled scalar field dark matter and quintessence. We provide an analytical mechanism to average…
Adiabatic perturbations in coupled scalar field cosmologies
Joschka Beyer
We present a comprehensive and gauge invariant treatment of perturbations around cosmological scaling solutions for two canonical scalar fields coupled through a common potential i…
Small scale structures in coupled scalar field dark matter
Joschka Beyer, Christof Wetterich
We investigate structure formation for ultralight scalar field dark matter coupled to quintessence, in particular the cosmon-bolon system. The linear power spectrum is computed by…
Trawling for transits in a sea of noise: A Search for Exoplanets by Analysis of WASP Optical Lightcurves and Follow-up (SEAWOLF)
E. Gaidos, D. R. Anderson, S. Lepine +12
Studies of transiting Neptune-size planets orbiting close to nearby bright stars can inform theories of planet formation because mass and radius and therefore mean density can be a…
Coupled dark energy and dark matter from dilatation anomaly
Joschka Beyer, Sami Nurmi, Christof Wetterich
Cosmological runaway solutions may exhibit an exact dilatation symmetry in the asymptotic limit of infinite time. In this limit, the massless dilaton or cosmon could be accompanied…