Supernova Constraints on Models of Neutrino Dark Energy

Details Supernova Constraints on Models of Neutrino Dark Energy Supernova Constraints on Models of Neutrino Dark Energy

2005-09-10

arxiv.org/abs/astro-ph/0509272v2

Phys.Rev.D73:103503,2006

Astronomy and Astrophysics

Astrophysics

Typos fixed and references updated. Version pressed in PRD

Scientific paper

10.1103/PhysRevD.73.103503

In this paper we use the recently released Type Ia Supernova (SNIa) data to constrain the interactions between the neutrinos and the dark energy scalar fields. In the analysis we take the dark energy scalars to be either Quintessence-like or Phantom-like. Our results show the data mildly favor a model where the neutrinos couple to a phantom-like dark energy scalar, which implies the equation of state of the coupled system behaves like Quintom scenario in the sense of parameter degeneracy. We find future observations like SNAP are potentially promising to measure the couplings between neutrino and dark energy.

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