Speaker
Description
Modern computational advancements have brought about a resurgence in the consideration of cosmic-rays for driving galactic outflows. This is particularly important in normal galaxies whose thermal and radiation pressure alone is insufficient to expel gas and dust from the disk. Synchrotron radio emission is one of the only—and by far the most accessible—direct tracers of cosmic-rays in galaxies. While deep radio images trace the diffusion of cosmic rays from star-forming regions in the disk, they also unveil the expulsion of cosmic rays into the surrounding circumgalactic material (CGM). I will present the serendipitous discovery of a potential case for purely cosmic-ray driven superwinds in a nearby galaxy. Combining the radio synchrotron signatures with HI spectral line imaging, optical integral field spectroscopy, and X-ray observations fully account for all phases of the ISM and CGM. Using this comprehensive approach, I will detail the likelihood that these are primarily cosmic-ray driven winds and how we can further constrain the presence of these winds in future multiwavelength datasets.
