Limits on Ionized Gas in M81's Globular Clusters

  title={Limits on Ionized Gas in M81's Globular Clusters},
  author={Joan M. Wrobel and K. E. Johnson},
  journal={Research Notes of the AAS},
We use NSF's Karl G. Jansky Very Large Array to constrain the mass of ionized gas in 206 globular star clusters (GCs) in M81, a nearby spiral galaxy. We detect none of the GCs and impose a typical gas-mass upper limit of 550 solar masses (3-sigma). These findings bear on GC evolution in M81. 



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