scholarly journals Space-based gravitational-wave detectors can determine the thermal history of the early Universe

2008 ◽  
Vol 77 (12) ◽  
Author(s):  
Kazunori Nakayama ◽  
Shun Saito ◽  
Yudai Suwa ◽  
Jun’ichi Yokoyama
Keyword(s):  
Gravitational Wave ◽  
Early Universe ◽  
Thermal History ◽  
Gravitational Wave Detectors ◽  
History Of

scholarly journals Quasi-monolithic mirror suspensions in ground-based gravitational-wave detectors: an overview and look to the future

2018 ◽  
Vol 376 (2120) ◽  
pp. 20170281 ◽  
Author(s):  
Anna-Maria A. van Veggel
Keyword(s):  
Gravitational Wave ◽  
Seismic Isolation ◽  
Thermal Noise ◽  
Fused Silica ◽  
New Era ◽  
The Future ◽  
Gravitational Wave Detectors ◽  
The Status ◽  
History Of ◽  
The Universe

At the commencement of a new era in astrophysics, with added information from direct detections of gravitational-wave (GW) signals, this paper is a testament to the quasi-monolithic suspensions of the test masses of the GW detectors that have enabled the opening of a new window on the universe. The quasi-monolithic suspensions are the final stages in the seismic isolation of the test masses in GW detectors, and are specifically designed to introduce as little thermal noise as possible. The history of the development of the fused-silica quasi-monolithic suspensions, which have been so essential for the first detections of GWs, is outlined and a glimpse into the status of research towards quasi-monolithic suspensions made of sapphire and silicon is given. This article is part of a discussion meeting issue ‘The promises of gravitational-wave astronomy’.

scholarly journals Measurement of parity violation in the early universe using gravitational-wave detectors

2013 ◽  
Vol 726 (1-3) ◽  
pp. 66-71 ◽  
Author(s):  
S.G. Crowder ◽  
R. Namba ◽  
V. Mandic ◽  
S. Mukohyama ◽  
M. Peloso
Keyword(s):  
Gravitational Wave ◽  
Early Universe ◽  
Parity Violation ◽  
Gravitational Wave Detectors

TheSU(11) family unified model and the thermal history of the very early universe

1991 ◽  
Vol 104 (12) ◽  
pp. 1687-1695
Author(s):  
Lu Jizong ◽  
Li Xinzhou ◽  
Zhang Guangyen
Keyword(s):  
Early Universe ◽  
Thermal History ◽  
Unified Model ◽  
History Of

POSSIBLE ANISOTROPIC PHASES IN THE EARLY UNIVERSE AND GRAVITATIONAL WAVE BACKGROUND

1986 ◽  
Vol 01 (11) ◽  
pp. 593-600 ◽  
Author(s):  
D.V. DERYAGIN ◽  
D. YU. GRIGORIEV ◽  
V.A. RUBAKOV ◽  
M.V. SAZHIN
Keyword(s):  
Gravitational Wave ◽  
Early Universe ◽  
Energy Momentum Tensor ◽  
Momentum Tensor ◽  
Gravitational Wave Detectors ◽  
Gravitational Wave Background

We discuss possible anisotropic and inhomogeneous phases in the early Universe at relatively late epochs corresponding to the temperatures 1 GeV –10 TeV . The anisotropy and inhomogeneity of the energy-momentum tensor at the horizon scale gives rise to the generation of a stochastic gravitational wave background. It is shown that the present amplitudes and frequencies of this background may be well within the access of planned gravitational wave detectors.

scholarly journals The Thermal History of the Universe and the Spectrum of Relic Radiation

1974 ◽  
Vol 63 ◽  
pp. 167-173
Author(s):  
R. A. Sunyaev
Keyword(s):  
Energy Release ◽  
Early Universe ◽  
Thermal History ◽  
Energy Production ◽  
Cosmological Models ◽  
Clear Picture ◽  
Evolution Of The Universe ◽  
Strong Turbulence ◽  
History Of ◽  
The Universe

Many of the cosmological models currently under discussion and theories of the origin of galaxies which involve antimatter, strong turbulence and so on result in significant energy release during the evolution of the Universe. It is evident that significant energy production should lead to distortions of the spectrum of the relic radiation. The absence of noticeable deviations from the Planckian spectrum enables us to set limits to the energy release in the early Universe (102 < z< 108). But in order to have a clear picture of possible distortions, let us first review the idealized situation.

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