34 citations · 101 across the 8 of their papers we have counts for
5 papers · 1 filter
The dynamical origin of the magnetic field distributions in compressible turbulence
Evangelia Ntormousi, Fabio Del Sordo
Magnetohydrodynamical (MHD) simulations of isothermal compressible turbulence report that the density distribution is well described by a lognormal with a variance proportional to…
A dynamo amplifies the magnetic field of a Milky-Way-like galaxy
Evangelia Ntormousi, Konstantinos Tassis, Fabio Del Sordo +2
The magnetic fields of spiral galaxies are so strong that they cannot be primordial. Their typical values are over one billion times higher than any value predicted for the early U…
Stabilizing effect of magnetic helicity on magnetic cavities in the intergalactic medium
Simon Candelaresi, Fabio Del Sordo
We investigate the effect of magnetic helicity on the stability of buoyant magnetic cavities as found in the intergalactic medium. In these cavities, we insert helical magnetic fie…
Is there a left-handed magnetic field in the solar neighborhood? Exploring helical magnetic fields in the interstellar medium through dust polarization power spectra
Andrea Bracco, Simon Candelaresi, Fabio Del Sordo +1
The full-sky Planck polarization data at 850um revealed unexpected properties of the E and B mode power spectra of dust emission in the interstellar medium (ISM). The positive cros…
How can vorticity be produced in irrotationally forced flows?
Fabio Del Sordo, Axel Brandenburg
A spherical hydrodynamical expansion flow can be described as the gradient of a potential. In that case no vorticity should be produced, but several additional mechanisms can drive…