Article

# The CODEX-ESPRESSO experiment: cosmic dynamics, fundamental physics, planets and much more..

[more]
(Impact Factor: 0.27). 12/2007; 122(9-11). DOI: 10.1393/ncb/i2008-10450-9
Source: arXiv

ABSTRACT

CODEX, a high resolution, super-stable spectrograph to be fed by the E-ELT, the most powerful telescope ever conceived, will for the first time provide the possibility of directly measuring the change of the expansion rate of the Universe with time and much more, from the variability of fundamental constants to the search for other earths. A study for the implementation at the VLT of a precursor of CODEX, dubbed ESPRESSO, is presently carried out by a collaboration including ESO, IAC, INAF, IoA Cambridge and Observatoire de Geneve. The present talk is focused on the cosmological aspects of the experiment. Comment: 6 pages Latex, to appear in the proceedings of `A Century of Cosmology', S. Servolo, August 2007, to be published in Il Nuovo Cimento

### Full-text

Available from: Denis Mégevand, Sep 25, 2012
0 Followers
·
• ##### Article: Cosmic Dynamics in $F(R)$ Modified Gravity
[Hide abstract]
ABSTRACT: In this paper we consider FRW cosmology in $F(R)$ modified gravity. It is shown that in particular cases the bouncing solution may appears in the model whereas the equation of state (EoS) parameter may crosses the phantom divider. For the dynamical universe, quantitatively we also find parameters in the model which satisfies two independent tests:the model independent Cosmological Redshift Drift (CRD) test and the type Ia supernova luminosity distances.
• Source
##### Article: Cosmic Dynamics in the Chameleon Cosmology
[Hide abstract]
ABSTRACT: We study in this paper chameleon cosmology applied to Friedmann-Robertson-Walker space, which gives rise to the equation of state (EoS) parameter larger than -1 in the past and less than -1 today, satisfying current observations. We also study cosmological constraints on the model using the time evolution of the cosmological redshift of distant sources which directly probes the expansion history of the universe. Due to the evolution of the universe's expansion rate, the model independent Cosmological Redshift Drift (CRD)test is expected to experience a small, systematic drift as a function of time. The model is supported by the observational data obtained from the test.
International Journal of Modern Physics D 04/2010; 19(05). DOI:10.1142/S0218271810016592 · 1.74 Impact Factor
• Source
##### Article: Cosmic Dynamics in $F(R,\phi)$ Gravity
[Hide abstract]
ABSTRACT: In this paper we consider FRW cosmology in ${F(R,\phi)}$ gravity. It is shown that in particular cases the bouncing behavior may appears in the model whereas the equation of state (EoS) parameter may crosses the phantom divider. For the dynamical universe, quantitatively we also find parameters in the model which satisfies two independent tests:the model independent Cosmological Redshift Drift (CRD) test and the type Ia supernova luminosity distances.
General Relativity and Gravitation 05/2010; 43(6). DOI:10.1007/s10714-011-1148-z · 1.77 Impact Factor