INTER-UNIVERSITY  CENTRE  FOR  ASTRONOMY  AND  ASTROPHYSICS
(An Autonomous Institution of the University Grants Commission)

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  SEMINAR

 

PROFESSOR BHARAT RATRA

Kansas State University, USA
 
COSMOLOGICAL SEED MAGNETIC FIELD FROM INFLATION
 
 

A cosmological magnetic field of nG strength on Mpc length scales could be the seed magnetic field needed to explain observed few microG large-scale galactic magnetic fields. The speaker will first briefly review the observational and theoretical motivations for such a seed field, two galactic magnetic field amplification models, and some non-inflationary seed field generation scenarios. He will then discuss an inflation magnetic field generation model. He shall conclude by mentioning possible extensions of this model as well as potentially observable consequences.

 
IUCAA Lecture Hall, Bhaskara 3
December 23, 2015, 11:00 hrs.