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The Physics of CMBR Anisotropies
Kandaswamy Subramanian
The observed structures in the universe are thought to have arisen from gravitational instability acting on small fluctuations generated in the early universe. These spatial fluctu…
Nonlinear current helicity fluxes in turbulent dynamos and alpha quenching
Kandaswamy Subramanian, Axel Brandenburg
Large scale dynamos produce small scale current helicity as a waste product that quenches the large scale dynamo process (alpha effect). This quenching can be catastrophic (i.e.int…
Primordial Magnetic Fields in the Post-recombination Era and Early Reionization
Shiv K. Sethi, Kandaswamy Subramanian
We explore the ways in which primordial magnetic fields influence the thermal and ionization history of the post-recombination universe. After recombination the universe becomes mo…
Astrophysical magnetic fields and nonlinear dynamo theory
Axel Brandenburg, Kandaswamy Subramanian
The current understanding of astrophysical magnetic fields is reviewed, focusing on their generation and maintenance by turbulence. In the astrophysical context this generation is…