Neutrino Lumps in Quintessence Cosmology

Abstract

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. We discuss their characteristics as a function of the present neutrino mass. We suggest that these objects are the likely outcome of the growth of cosmological perturbations.

9 pages, 4 figures, references and discussion of formation added

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• Very large scale structures in growing neutrino quintessence
• Neutrino lumps and the Cosmic Microwave Background
• Structure Formation and Backreaction in Growing Neutrino Quintessence
• Hiding a neutron star inside a wormhole
• Oscillating nonlinear large scale structure in growing neutrino quintessence
• Neutrino Lump Fluid in Growing Neutrino Quintessence
• Mass freezing in growing neutrino quintessence
• Wormhole solutions supported by interacting dark matter and dark energy
• Nonlinear matter spectra in growing neutrino quintessence
• Nonlinear growing neutrino cosmology
• Majorana Neutrino Superfluidity and Stability of Neutrino Dark Energy
• Neutrino Dark Energy With More Than One Neutrino Species
• A new take on the inflationary quintessence
• Static structure of chameleon dark Matter as an explanation of dwarf spheroidal galactic core
• Backreaction in Growing Neutrino Quintessence
• Probing Long-Range Forces Between Neutrinos with Cosmic Structures
• Chameleon dark matter stars
• Neutrino Dark Energy in Grand Unified Theories
• Growing neutrino cosmology