The Accelerating Universe: Role Of -Dark Energy
Ray, Saibal; Mukhopadhyay, Utpal; Ray, Saibal; Mukhopadhyay, Utpal
ISBN 10: 3847372149 ISBN 13: 9783847372141
Editore: Lap Lambert Academic Publishing, 2012
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188 pages. 8.66x5.91x0.43 inches. In Stock. Codice articolo 3847372149
Riassunto:
Discovery of the accelerating Universe through Super Novae Ia observation about a decade ago has resulted in a paradigm shift in cosmological research. The present monograph is a consequence of theoretical investigation of dark energy, the agent supposed to be responsible for accelerating the Universe. Two main features of this work are Einstein’s general relativistic approach and time-varying Λ models of phenomenological character. It has been possible successfully to match the theoretical models with the observational data regarding the age of the Universe. Observational data of time variation of the gravitational constant G has been considered in the typical phenomenological models. Various time dependent equation of state parameter ω have been used to track the entire evolutionary period of the Universe. Possibility of a two-fluid Universe is also in the purview of this work. Another interesting side of this book is the visualization of the inflationary phase through analytic-graphical method and realization of the role of Λ as dark energy in connection to cosmic string. In brief, Einstein’s cosmological constant Λ in its new face has resurfaced through this monograph.
Informazioni sull'autore: Dr. Saibal Ray, Ph.D. from Jadavpur University, Kolkata is an Associate Professor in Government College of Engineering and Ceramic Technology. His area of specialization is Astrophysics and Cosmology. Dr. Utpal Mukhopadhyay received Ph.D. from Jadavpur University under the supervision of Dr. Ray and is a teacher of Barasat Satyabharati Vidyapith.
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Titolo: The Accelerating Universe: Role Of -Dark ...
Casa editrice: Lap Lambert Academic Publishing
Data di pubblicazione: 2012
Legatura: Paperback
Condizione: Brand New