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Covariant Perturbations in f(R)-Gravity of Multi-Fluid Cosmologies
A study of the formation of cosmic structure in a modified theory of gravity
Paperback
Print on Demand | Lieferzeit: Print on Demand - Lieferbar innerhalb von 3-5 Werktagen I
Artikel-Nr:
9783844314045
Veröffentl:
2011
Einband:
Paperback
Erscheinungsdatum:
01.03.2011
Seiten:
100
Autor:
Amare Abebe
Gewicht:
167 g
Format:
220x150x6 mm
Sprache:
Englisch
Beschreibung:
Amare Abebe BSc: Studied Theoretical Physics at Addis Ababa University. MSc: Studied Cosmology at the National Astrophysics and Space Science Programme (NASSP) at the University of Cape Town. Currently a PhD student in Cosmology at the University of Cape Town.
This book studies the evolution of scalar cosmological perturbations in the 1+3 Covariant Gauge-Invariant formalism for generic f(R) theories of gravity. It provides with a complete set of equations describing the evolution of matter and curvature fluctuations for a multi-fluid cosmological medium. It also deals with a specific model of a radiation-dust fluid universe described by barotropic equations of state where the perturbation equations are applied around a background solution of a specific toy model of gravity and looks at exact solutions for scales much smaller and much larger than the Hubble radius.