Perturbations of the Robertson-Walker space - Multicomponent sources and generalized gravity

view Abstract Citations (168) References (29) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Perturbations of the Robertson-Walker Space: Multicomponent Sources and Generalized Gravity Hwang, Jai-Chan Abstract Cosmological perturbation equations in the Robertson-Walker background applicable to some classes of generalized gravity theories, including multicomponent fluids and fields, are presented. The equations are expressed in a form which does not depend on the frame, and the adaptation of the equations into a particular gauge or into some gauge-invariant formulation becomes trivial. A generalization of formalism applicable to a variety of generalized gravity theories, including most of the gravity theories with scalar field and scalar curvature combination, is developed. Publication: The Astrophysical Journal Pub Date: July 1991 DOI: 10.1086/170206 Bibcode: 1991ApJ...375..443H Keywords: Gauge Invariance; Metric Space; Perturbation Theory; Relativity; Computational Astrophysics; Cosmochemistry; Field Theory (Physics); Scalars; Astrophysics; COSMOLOGY; GALAXIES: FORMATION; GRAVITATION; RELATIVITY full text sources ADS |