2000ApJS..131..483K

A spectral line survey in the ranges of 84.7-115.6 and 123.5-155.3 GHz has been carried out toward the ultracompact H II region G34.3+0.15 using the 14 m radio telescope at Taeduk Radio Astronomy Observatory (TRAO). The sensitivity achieved is typically 0.03-0.08 K. One hundred twenty-seven lines from 19 distinct species plus nine isotopomers and four ionized species have been detected from the TRAO 3 and 2 mm surveys. Two molecular lines; CH₃OH[3(1)-2(1) A-], CH₃OH[9(0)-8(1) A+] and one unidentified line at the frequency of 148.1119 GHz are newly detected in this survey. These data sets are the first line survey results for G34.3+0.15 in these spectral regions. The column density, rotational temperature and fractional abundance are derived for the CH₃OH, SO, H₂CS, HC₃N, CH₃CN, and CH₃CCH molecules using a rotation diagram analysis.