25) Vertical velocity flows in nearby spiral galaxies

Abstract: We present the Waves in Nearby Disk Galaxies (WiNDS) survey, comprising 40 nearby low-inclination spiral galaxies observed in Hα using Fabry-Perot Interferometry. From these observations, we derive 2D line-of-sight velocity fields that are analyzed to identify the possible presence of vertical velocity flows in the galactic disks of these low-inclination late-type galaxies. Large and globally coherent flows in the line-of-sight velocity of nearly face-on galaxies can be associated with large vertical displacement of the disk with respect to its mid-plane. Our goal is to characterize how frequent warps and corrugation patterns, such as those observed in the Milky Way, arise in the Local Universe. Our currently available data has allowed us to identify six galaxies with such velocity perturbations that could be associated with strong vertical perturbation in their underlying disks.

Bio: My name is Catalina and I am a Chilean astronomer. Currently, I am doing a PhD at the University of La Serena, where the cleanest skies in the world are.During my undergraduate studies, I worked with globular clusters, looking for a way to automatically detect them. And, in my Master degree I studied on intermediate redshift galaxy clusters doing a morphological classification of galaxy membersAnd now, during my PhD research, I am working with Milky Way-type galaxies, specifically in kinematic and dynamics