Instituto de Física y Astronomía

y Centro de Astrofísica de Valparaíso

Calendario de eventos

Evidence for cosmic ray driven galactic winds

Jueves, 15. Noviembre 2018, 14:30
Accesos : 49

Charlista: Dr. Ralph-Jürgen Dettmar

Institución:  Instituto de Astronomía, Ruhr-Universität Bochum

Ciudad/País: Alemania

Abstract: Recent numerical models of the multiphase ISM underline the importance of cosmic rays and magnetic fields for the physics of the ISM in disc galaxies. Observations of properties of the ISM in galactic halos constrain models of the expected exchange of matter between the star-forming disc and the environment (circumgalactic medium, CGM). We present new observational evidence from radio-continuum polarization studies of edge-on galaxies on magnetic field strength and structure as well as cosmic ray electron transport in galactic halos that indicate the existence of galactic winds. The findings are discussed in the context of the disk-halo interaction of the interstellar medium. 

 

In  addition Dr. Dettmar will present a short talk titled: 

 

The "Bochum"-Telescope at ESO/La Silla -- a historical perspective  

 

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