Speaker
Brynmor Haskell
(Universita' degli Studi di Milano, Italy)
Description
Vortex pinning in neutron stars: i.e. strong interactions between superfluid neutron vortices and normal components of the star, is a key ingredient in theoretical models for astrophysical phenomena such as pulsar glitches.
In this talk I will describe how we can make progress in understanding the nature of pinning by studying a laboratory analogue system, i.e. superfluid Helium 3 in the presence of pinning to different kinds of aerogel.
I will discuss the results that can be obtained from the results of experiments in such systems, and also briefly describe simulations of vortex motion in neutron star crusts, that allow to extrapolate the results to conditions that cannot be studied in terrestrial systems.
Authors
Brynmor Haskell
(Universita' degli Studi di Milano, Italy)
Samuli Autti
(Lancaster University, UK)
Vanessa Graber
(Royal Holloway University UK)