English

Tachyon warm inflationary universe models

Astrophysics 2009-11-11 v1 General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory

Abstract

Warm inflationary universe models in a tachyon field theory are studied. General conditions required for these models to be realizable are derived and discussed. We describe scalar perturbations (in the longitudinal gauge) and tensor perturbations for these scenarios. We develop our models for a constant dissipation parameter Γ\Gamma in one case and one dependent on ϕ\phi in the other case. We have been successful in describing such of inflationary universe models. We use recent astronomical observations for constraining the parameters appearing in our model. Also, our results are compared with their analogous found in the cool inflationary case.

Keywords

Cite

@article{arxiv.astro-ph/0610339,
  title  = {Tachyon warm inflationary universe models},
  author = {R. Herrera and S. del Campo and C. Campuzano},
  journal= {arXiv preprint arXiv:astro-ph/0610339},
  year   = {2009}
}

Comments

21 pages, Accepted by JCAP

R2 v1 2026-07-22T09:14:05.258Z