17-22 July 2016
Master Cutlers Hall
Europe/London timezone

Galactic Cold Dark Matter from First Principles

22 Jul 2016, 08:30
30m
Venue: Cutlers' Main Hall (First Floor); Chair: Neil Spooner; Session Managers: Andrew Scarff & Frederic Mouton ()

Venue: Cutlers' Main Hall (First Floor); Chair: Neil Spooner; Session Managers: Andrew Scarff & Frederic Mouton

Speaker

Dr. Luca Visinelli (Nordita)

Description

We show that fluid dynamics applied to galactic Cold Dark Matter (CDM) leads to a family of purely theoretical galactic density profiles that includes the popular Navarro-Frenk-White profile, and diverge at the halo core. When CDM is treated as a Bose-Einstein condensate, the resolution of the fluid dynamics equations leads to a finite halo core, hence avoiding the “cuspy halo problem” found in CDM numerical models. The mass of the CDM particle is predicted to be of the order of 10^−24eV, the same order of magnitude as what predicted in ultra-light scalar CDM models but obtained via a completely different and independent approach.

Primary author

Dr. Luca Visinelli (Nordita)

Presentation Materials

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