Modeling the spectrum of gravitational waves in the primordial Universe

Details Modeling the spectrum of gravitational waves in the primordial Universe Modeling the spectrum of gravitational waves in the primordial Universe

2005-04-07

arxiv.org/abs/gr-qc/0504032v1

AIPConf.Proc.784:800-807,2005

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Proc. of the Conference on Magnetic Fields in the Universe: from laboratories and stars to primordial structures, AIP(NY), eds

Scientific paper

10.1063/1.2077253

Recent observations from type Ia Supernovae and from cosmic microwave background (CMB) anisotropies have revealed that most of the matter of the Universe interacts in a repulsive manner, composing the so-called dark energy constituent of the Universe. The analysis of cosmic gravitational waves (GW) represents, besides the CMB temperature and polarization anisotropies, an additional approach in the determination of parameters that may constrain the dark energy models and their consistence. In recent work, a generalized Chaplygin gas model was considered in a flat universe and the corresponding spectrum of gravitational waves was obtained. The present work adds a massless gas component to that model and the new spectrum is compared to the previous one. The Chaplygin gas is also used to simulate a $\Lambda$-CDM model by means of a particular combination of parameters so that the Chaplygin gas and the $\Lambda$-CDM models can be easily distinguished in the theoretical scenarios here established. The lack of direct observational data is partialy solved when the signature of the GW on the CMB spectra is determined.

Affiliated with

Also associated with

No associations

Rating

Modeling the spectrum of gravitational waves in the primordial Universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Modeling the spectrum of gravitational waves in the primordial Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling the spectrum of gravitational waves in the primordial Universe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-362347