Ammonia NH3(1, 1) and (2, 2) spectra toward the molecular core SS2A. The channel spacing is 0.039 km s-1; the spectral resolution FWHP = 0.045 km s-1. The red curves show the fit of a one- or two-component Gaussian model (the latter is marked by two vertical ticks at the position of the central NH3 line) to the original data.
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