scholarly journals A Polytropic Solution of the Expanding Universe – Constraining Relativistic and Non-Relativistic Matter Densities Using Astronomical Results

10.5772/24774 ◽  
2011 ◽  
Author(s):  
Ahmet M. ◽  
Michael L.
Keyword(s):  
Expanding Universe ◽  
Relativistic Matter

scholarly journals China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Keyword(s):  
Gravitational Wave ◽  
Hubble Constant ◽  
Gravitational Wave Detector ◽  
Expanding Universe ◽  
Satellite Mission ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Wave Detector ◽  
Wave Antenna ◽  
Gravitational Wave Antenna

AbstractIn this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared with the network of the ground based gravitational wave detectors which can measure the Hubble constant within a 2% uncertainty in the next five years by the standard siren method. Taiji is a Chinese space borne gravitational wave detection mission planned for launch in the early 2030 s. The pilot satellite mission Taiji-1 has been launched in August 2019 to verify the feasibility of Taiji. The results of a few technologies tested on Taiji-1 are presented in this paper.

scholarly journals Dynamics of a spherical object of uniform density in an expanding universe

2013 ◽  
Vol 88 (4) ◽  
Author(s):  
Roshina Nandra ◽  
Anthony N. Lasenby ◽  
Michael P. Hobson
Keyword(s):  
Uniform Density ◽  
Expanding Universe ◽  
Spherical Object

scholarly journals Dynamics of moduli and gaugino condensates in an expanding universe

2010 ◽  
Vol 2010 (02) ◽  
pp. 017-017
Author(s):  
Chloé Papineau ◽  
Marieke Postma ◽  
Saúl Ramos-Sánchez
Keyword(s):  
Expanding Universe

Philosophy of Space and Expanding Universe in G. J. Whitrow

2014 ◽  
Vol 20 (3) ◽  
pp. 233-247
Author(s):  
Giovanni Macchia
Keyword(s):  
Expanding Universe
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