Looks like. So this would be the first galaxy that actually seems to rotate following the laws of gravity as we know them.
The data on the 10 globular clusters the team tracked showed them moving much more slowly than would be expected. That led to an estimated mass that was extremely low for a galaxy—on the order of 10^8 solar masses. Using the amount of light emitted by the galaxy produced an estimate of the total mass of stars in the galaxy that was also in the neighborhood of 10^8. Normally, we infer that there's dark matter around because the galaxy appears to have a lot more matter than the amount provided by the stars we can see. But in this case, there's a minimal difference between the two.
Not necessarily. Globular clusters are sorta like mini galaxies outside the main galaxy. I didn't see anything indicating whether the main collection of stars is itself spinning.
The data on the 10 globular clusters the team tracked showed them moving much more slowly than would be expected. That led to an estimated mass that was extremely low for a galaxy—on the order of 10^8 solar masses. Using the amount of light emitted by the galaxy produced an estimate of the total mass of stars in the galaxy that was also in the neighborhood of 10^8. Normally, we infer that there's dark matter around because the galaxy appears to have a lot more matter than the amount provided by the stars we can see. But in this case, there's a minimal difference between the two.
https://arstechnica.com/science/2018/03/galaxy-seems-to-lack...
Edit: 10^8, not 108.