Molecular Line Observations of Ammonia and Methanol towards Ionized-Jet Candidates

Our group is focused on the study of star formation particularly on the analysis of high-mass star forming regions by conducting observations at radio frequencies. We carried out follow up observations of three high mass star forming regions for the detections of CH3OH and NH3 reported by Sanchez Tovar et al. (2023).There was a need for follow up observations as the observations of Sanchez Tovar et al. (2023) were conducted at low resolution and the nature of the emission lines was unclear. We confirmed the detections in the sample of high-mass stellar objects and carried out a detailed analysis of the spectral line. As our observations were of high resolution, the main part of this work was to optimize the channel widths by retaining the velocity information. The spectral lines were found to be extended with linewidths greater than 5 km/s which indicates thermal emission. In addition, we detected two masers (methanol transition 6(2)-6(1) and 7(2)-7(1)) offset by 6.5 arcsec relative to ionized jet candidates in IRAS 18089-1732. This work confirmed that Sanchez Tovar et al. (2023)’s detections are reliable and the coincidence of CH3OH and NH3 emission with ionized jets demonstrates a relation between jets and their molecular environments which can be further investigated.