https://digitalcommons.chapman.edu/scs_articles/118/
"Sub-Arc Second 2 Centimeter Continuum and SiO Spectral Line Observatio" by J. M. Hollis, A. G....
ub-arc second (- 0'.'15) VLA observations at 2 em have resolved the previously reported 6 em H II region, which engulfs the R Aquarii binary system, into two...