Indranil Banik

Indranil Banik is a British astrophysicist and postdoctoral fellow at the Institute for Cosmology and Gravitation at the University of Portsmouth.
Education
Indranil Banik was an undergraduate student at Trinity College, Cambridge (MSc) and a graduate student at the University of Saint Andrews. He held postdoctoral appointments at the Universities of Bonn and Saint Andrews, before moving to Portsmouth.
Career
His fields of specialty include the alternative to dark matter known as Modified Newtonian Dynamics, galaxy dynamics and evolution, the dynamics of wide binary stars, and cosmological research into the .
Known in Modified Newtonian Dynamics for his research into its prediction that the Milky Way and Andromeda galaxies had a past close flyby, Banik conducted detailed simulations of this flyby. The results showed this to be a promising explanation for the planes of satellite galaxies around the Milky Way and Andromeda. Banik led a detailed study that used the dynamics of wide binary stars to test Modified Newtonian Dynamics.
Banik is also known in cosmology for his pioneering investigations into the Hubble tension. He argues this is related to our location within a large underdensity or void. This approach achieved an important success with the successful prediction of the bulk flow curve, a measure of the velocity field in the local Universe.

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