High-Resolution Observations of Molecular Lines toward the Hot Core G28.20-0.04N

Abstract

We present the results from arcsecond resolution observations of various line transitions at 1.3 mm toward hypercompact HII region G28.20-0.04N. With the SMA data, we have detected and mapped the transitions in the CH${}_3$CN, CO, ${}^{13}$CO, SO${}_2$, OCS, and CH${}_3$OH molecular lines as well as the radio recombination line H30$\alpha$. The observations and analysis indicate a hot core associated with G28.20-0.04N. The outflow and possible rotation are detected in this region.

12 pages, 4 figures, accepted for publication in ApJL

References in corpus (3)

• The Early Evolution of Massive Stars: Radio Recombination Line Spectra
• Infall and Outflow of Molecular Gas in Sgr B2
• Internal Dynamics of the Hypercompact H II Region G28.20-0.04N