SPECTRAL LINE SURVEY TOWARD THE SPIRAL ARM OF M51 IN THE 3 AND 2 mm BANDS
SPECTRAL LINE SURVEY TOWARD THE SPIRAL ARM OF M51 IN THE 3 AND 2 mm BANDS
We have conducted a spectral line survey in the 3 and 2 mm bands toward two positions in a spiral arm of M51 (NGC 5194) with the Institut de Radioastronomie Millimétrique 30 m telescope. In this survey, we have identified 13 molecular species, including CN, CCH, N2H+, HNCO, and CH3OH. …