Neutrino Lumps in Quintessence Cosmology

Understand

Neutrinos interacting with the quintessence field can trigger the accelerated expansion of the Universe.

• In such models with a growing neutrino mass the homogeneous cosmological solution is often unstable to perturbations.
• We present static, spherically symmetric solutions of the Einstein equations in the same models.
• They describe astophysical objects composed of neutrinos, held together by gravity and the attractive force mediated by the quintessence field.