A direct test of density wave theory in a grand-design spiral galaxy
(2018)
Journal Article
Peterken, T. G., Merrifield, M. R., Aragón-Salamanca, A., Drory, N., Krawczyk, C. M., Masters, K. L., …Westfall, K. B. (2019). A direct test of density wave theory in a grand-design spiral galaxy. Nature Astronomy, 3(2), 178-182. https://doi.org/10.1038/s41550-018-0627-5
The exact nature of the arms of spiral galaxies is still an open question1. It has been widely assumed that spiral arms in galaxies with two distinct symmetrical arms are the products of density waves that propagate around the disk, with the spiral a... Read More about A direct test of density wave theory in a grand-design spiral galaxy.