| Recent observations at a variety of wavelengths have shown that the stellar disks of spiral galaxies extend much farther in radius than previously thought. We are exploring this component to understand the kinematics
of the material, in hopes of understanding how galaxies grow with time.
Below is a comparison of the outerskirts of M 94 (left image is U-band
imaging taken with the LBT and right image is GALEX NUV image). This
comparison highlights some of the outerdisk blue knots and also the
complexity of their structure that is not quite evident in the GALEX
data.
See papers 15, 19, 25, and 31 in publication list for related work.
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