Reconstructing Dark Energy

Simple item page
dc.creatorSahni, Varun
dc.creatorStarobinsky, Alexei
dc.date2006-10-02
dc.date2006-10-23
dc.date.accessioned2026-07-07T10:23:43Z
dc.date.available2026-07-07T10:23:43Z
dc.descriptionThis review summarizes recent attempts to reconstruct the expansion history of the Universe and to probe the nature of dark energy. Reconstruction methods can be broadly classified into parametric and non-parametric approaches. It is encouraging that, even with the limited observational data currently available, different approaches give consistent results for the reconstruction of the Hubble parameter $H(z)$ and the effective equation of state $w(z)$ of dark energy. Model independent reconstruction using current data allows for modest evolution of dark energy density with redshift. However, a cosmological constant (= dark energy with a constant energy density) remains an excellent fit to the data. Some pitfalls to be guarded against during cosmological reconstruction are summarized and future directions for the model independent reconstruction of dark energy are explored.
dc.description28 pages, 7 figures; Invited review for the special issue of Int. J. Mod. Phys. devoted to dark energy and dark matter, IJMP style. Additional references, more discussion
dc.identifierhttps://arxiv.org/abs/astro-ph/0610026
dc.identifierhttp://arxiv.org/abs/astro-ph/0610026
dc.identifierInt.J.Mod.Phys.D15:2105-2132,2006
dc.identifierdoi:10.1142/S0218271806009704
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175933
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleReconstructing Dark Energy
dc.typetext

Files

Collections

arXiv