Ammonia in the hot core W51-IRS2: Maser line profiles, variability, and saturation

E. Alkhuja, C. Henkel, Y. T. Yan +6

W51-IRS2 is known to be one of the most prolific sources of interstellar ammonia (NH${}_3$) maser lines. So far, however, many of these inversion lines have rarely been studied. Here…