Chasing discs around O-type (proto)stars: Evidence from ALMA observations

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Volume 602 (June 2017)

A&A, 602 (2017) A59

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Table 2

Spectral windows covered by the correlator set-up, with corresponding spectral resolutions and noise per channel.

Frequency range	Resolution	1σ noise^a	Molecule^b
(GHz)	(kHz)	(mJy/beam)

216.976–218.849	1953.1	1.3	SiO
219.533–219.767	488.3	1.5
220.303–220.537	244.1	2.0	CH₃CN
220.533–220.767	244.1	1.9	CH₃CN
221.213–221.447	488.3	1.8	CH₃CN ν₈ = 1
231.803–232.037	488.3	1.8	¹³CH₃CN
232.033–232.267	488.3	1.6	¹³CH₃CN
232.903–233.137	488.2	1.7
233.133–233.367	488.3	1.5
235.283–235.517	488.3	1.4
235.853–236.087	488.3	1.6
236.083–236.317	488.3	1.5
236.313–236.547	488.3	1.6

Notes.

^(a)

The noise has been estimated in the channel corresponding to the strongest emission in the bandwidth. This value is only indicative, as it can change significantly from source to source.

^(b)

Only the species analysed in the present study are reported.

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