Reconstruction of Hessence Dark Energy and the Latest Type Ia Supernovae Gold Dataset

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dc.creatorWei, Hao
dc.creatorTang, Ningning
dc.creatorZhang, Shuang Nan
dc.date2006-12-28
dc.date2007-02-28
dc.date.accessioned2026-07-07T10:36:45Z
dc.date.available2026-07-07T10:36:45Z
dc.descriptionRecently, many efforts have been made to build dark energy models whose equation-of-state parameter can cross the so-called phantom divide $w_{de}=-1$. One of them is the so-called hessence dark energy model in which the role of dark energy is played by a non-canonical complex scalar field. In this work, we develop a simple method based on Hubble parameter $H(z)$ to reconstruct the hessence dark energy. As examples, we use two familiar parameterizations for $H(z)$ and fit them to the latest 182 type Ia supernovae Gold dataset. In the reconstruction, measurement errors are fully considered.
dc.description14 pages, 6 figures, revtex4; v2: references added; v3: published version
dc.identifierhttps://arxiv.org/abs/astro-ph/0612746
dc.identifierhttp://arxiv.org/abs/astro-ph/0612746
dc.identifierPhys.Rev.D75:043009,2007
dc.identifierdoi:10.1103/PhysRevD.75.043009
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/180157
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleReconstruction of Hessence Dark Energy and the Latest Type Ia Supernovae Gold Dataset
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