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Cosmological Constraints on the Sign-Changeable Interactions
Cosmological Constraints the Sign-Changeable Interactions
2011/1/13
Recently, Cai and Su [Phys.\ Rev.\ D {\bf 81}, 103514 (2010)] argued that the sign of interaction $Q$ in the dark sector changed in the approximate redshift range of $0.45\,\lsim\, z\,\lsim\, 0.9$, by...
The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints
The Supernova Legacy Survey 3-year sample Type Ia Supernovae photometric distances
2011/1/10
We present photometric properties and distance measurements of 252 high redshift Type Ia supernovae (0.15 < z < 1.1) discovered during the first three years of the Supernova Legacy Survey (SNLS). Thes...
Cosmological Constraints on the DGP braneworld model with Gamma-ray bursts
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/31
In this paper, we investigate observational constraints on the DGP model with the Gamma-ray bursts (GRBs) at high redshift obtained directly from the Union2 SNe Ia set.