Featured Image: H I Gas in the Triangulum Galaxy

These spectacular images are of M33, otherwise known as the Triangulum Galaxy — a spiral galaxy roughly 3 million light-years away. The views on the left and in the center are different Wide-field Infrared Survey Explorer (WISE) filters, and the view on the right is a full-resolution look at the H I gas distribution in M33’s inner disk, made with data from the Dominion Radio Astrophysical Observatory (DRAO) Synthesis Telescope and Arecibo. In a new study, a team of authors led by Zacharie Sie Kam (University of Ouagadougou, Burkina Faso; University of Montreal, Canada) uses the H I gas observations to explore how the mass is distributed throughout M33 and how the gas moves as the galaxy’s disk rotates. To read more about what they learned, check out the paper below.


S. Z. Kam et al 2017 AJ 154 41. doi:10.3847/1538-3881/aa79f3