CMB Non-Gaussianity as a Probe of Primordial Magnetic Fields

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• Pranjal Trivedi, University of Delhi
• Tuesday 07 July 2015, 16:00-17:00
• Sackler Lecture Theatre, Institute of Astronomy.

If you have a question about this talk, please contact Paula younger.

Recent evidence for an intergalactic magnetic field pervading the Universe lends support to a primordial origin for cosmic magnetic fields. The non-Gaussianity induced by magnetic fields in the CMB (Cosmic Microwave Background radiation) is a sensitive probe of large-scale primordial magnetic fields. Comparing our theoretical results on the magnetic bispectrum and trispectrum with the latest Planck observations, we place an improved sub-nanoGauss constraint on the present amplitude of large-scale primordial magnetic fields.

This talk is part of the Kavli Institute for Cosmology - Summer Series series.

This talk is included in these lists:

• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Institute of Astronomy Talk Lists
• Kavli Institute for Cosmology - Summer Series
• Kavli Institute for Cosmology Talk Lists
• Sackler Lecture Theatre, Institute of Astronomy

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