1990/05/01 by Paul T. P. Ho, Robert N. Martin, Jean L. Turner +1 · 3 citations
Physics and Astronomy · Engineering · #Astrophysics and Star Formation Studies #Astronomy and Astrophysical Research #Astronomical Observations and Instrumentation
paper · doi:10.1086/185728
openalex publication_date 1990/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
Extragalactic NH3_ is successfully imaged with 5" resolution using the VLA. Essentially all the single-dish flux is recovered in the interferometer maps. The hot gas (>~ 70 K), inferred from single-dish NH3_ line intensity ratios, appears to be closely associated with the innernost portions of the nuclear bar seen in CO. Small-scale anticorrelation of the NH3_ emission with the central thernal radio continuum emission is likely to be due to heating and photoionization effects.