Star formation in Nuclear Rings

9 July 2021

Star-forming rings around the nuclei of galaxies are a common phenomena and they are a laboratory for studying extreme star formation. In “A Comparison between Nuclear Ring Star Formation in LIRGs and Normal Galaxies with the Very Large Array” (Song+) we study the star formation properties of nuclear rings in a set of normal star forming galaxies and a set of luminous infrared galaxies. A key finding is that the nuclear rings in LIRGs account for a higher fraction of their total star formation than the rings in normal star-forming galaxies. We further quantify the sizes and star formation properties of individual regions within the nuclear rings. The paper has been accepted for publication in the Astrophysical Journal and a preprint is available.