The investigation of detectability of the relic gravitational waves based on the WMAP-9 and Planck

Abstract

The generated relic gravitational waves were underwent several stages of evolution of the universe such as inflation and reheating. These stages were affected on the shape of spectrum of the waves. As well known, at the end of inflation, the scalar field $\varphi$ oscillates quickly around some point where potential $V(\varphi )=\lambda {\varphi }^n$ has a minimum. The end of inflation stage played a crucial role on the further evolution stages of the universe because particles were created and collisions of the created particles were responsible for reheating the universe. There is a general range for the frequency of the spectrum $\sim (0.3\times 10^{-18}-0.6\times 10^{10}$)Hz. It is shown that the reheating temperature can be affect on the frequency of the spectrum as well. There is constraint on the temperature from cosmological observations based on WMAP-9 and Planck. Therefore it is interesting to estimate allowed value of frequencies of the spectrum based on general range of reheating temperature like few MeV $\lesssim T_{rh}\lesssim 10^{16}$ GeV, WMAP-9 and Planck data then compare the spectrum with sensitivity of future detectors such as LISA, BBO and ultimate-DECIGIO. The obtained results of this comparison give us some more chance for detection of the relic gravitational waves.

arXiv commentAccepted by IJMPD on 8 June 2016,2 figures and 14 pages

References in corpus (19)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• First CMB Constraints on the Inflationary Reheating Temperature
• Detecting a gravitational-wave background with next-generation space interferometers
• Ultra-high precision cosmology from gravitational waves
• Gravitational waves constraints on post-inflationary phases stiffer than radiation
• Relic Gravitational Waves in the Accelerating Universe
• Reheating temperature from the CMB
• Relic Gravitational Waves and Their Detection
• Analytic spectrum of relic gravitational waves modified by neutrino free streaming and dark energy
• The Implications of the Microwave Background Anisotropies for Laser-Interferometer-Tested Gravitational Waves
• An exact analytic spectrum of relic gravitational waves in an accelerating universe
• Relic Gravitational Waves with A Running Spectral Index and Its Constraints at High Frequencies
• Modifications by QCD transition and $e^{+}{e}^{-}$ annihilation on analytic spectrum of relic gravitational waves in accelerating universe
• Constraints upon the spectral indices of relic gravitational waves by LIGO S5
• Using pulsar timing arrays and the quantum normalization condition to constrain relic gravitational waves
• Revisit relic gravitational waves based on the latest CMB observations
• Relic gravitational waves in the frame of slow-roll inflation with a power-law potential and the detection
• Modified Amplitude of Gravitational Waves Spectrum
• Imprints of relic gravitational waves on pulsar timing