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Cosmic ray heating of cold streams: Implications for the gas supply and growth of massive galaxies
Ellis R. Owen, Nicolas Ledos, Evangelia Ntormousi +3
Recent observations have demonstrated the presence of cosmic rays (CRs) in cosmic-web filaments. Cold streams supply gas inflows from these filaments into massive galaxies during t…
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…
SIMPLIFI -- Study of Interstellar Magnetic Polarization: a Legacy Investigation of Filaments. I. Magnetically-Guided Accretion onto the DR21 Ridge
Thushara G. S. Pillai, Jens Kauffmann, Juan D. Soler +15
We present first results from SIMPLIFI (Study of Interstellar Magnetic Polarization: a Legacy Investigation of Filaments), a SOFIA/HAWC+ polarimetric survey of Galac…
Is feedback-free star formation possible?
A. Ferrara, D. Manzoni, E. Ntormousi
It has been suggested that, if the free-fall time of star-forming clouds is shorter than the lifetime ( Myr) of massive stars exploding as supernovae (SN), a large frac…
Magnetic field amplification during a turbulent collapse
Axel Brandenburg, Evangelia Ntormousi
The question of whether a dynamo can be triggered by gravitational collapse is of great interest, especially for the early Universe. Here, we employ supercomoving coordinates to st…
Magnetising galaxies with cold inflows
Nicolas Ledos, Evangelia Ntormousi, Shinsuke Takasao +1
High-redshift () galaxies accrete circumgalactic gas through cold streams. Recent high-resolution MHD simulations of these streams showed a significant amplification of t…