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Table 1

Observed spectral lines in ALMA Band 6.

Species Spectral line Rest frequency E up / k ΔV
GHz K km s-1

SiO ν= 0,J = 5−4 217.104919 31.26 0.169
SiO ν= 1,J = 5−4 215.596018 1800.17 0.170
SiO ν= 2,J = 5−4 214.088575 3551.97 0.169
29SiO ν= 0,J = 5−4 214.385752 30.87 0.171
H2O v2 = 1,JKa,Kc = 55,0−64,3 232.68670 3461.88 0.079

Notes. Columns are, from left to right, molecule, quantum numbers of observed transition, rest frequency, energy level of the upper state, and channel width in velocity of the raw data. The SiO and 29SiO transition frequencies were taken form the Cologne Database for Molecular Spectroscopy (CDMS). They are based on laboratory data presented by Müller et al. (2013) and have an accuracy of about 1 kHz, except for the SiO ν= 0,J = 5−4 transition which has an accuracy of 2 kHz. The H2O transition frequency is taken from Belov et al. (1987) and has an accuracy of 50 kHz.

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