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Table 2

Line parameters from Gaussian profile fitting for RRL detections.

Linea Frequency ∫TLdÆ V LSR FWHM T L rmsb
(GHz) (K km s-1) (km s-1) (km s-1) (mK) (mK)
CRL 618
H41α 92.03443 9.02±0.12 −24.3±0.3 47.6±0.8 178 4
H39α 106.73736 11.90±0.05 −24.0±0.1 46.5±0.2 240 2
H31α 210.50177 16.4±0.2 −23.6±0.2 38.3±0.6 403 12
H30α 231.90093 20.2±0.1 −22.9±0.1 37.1±0.2 512 5
H51β 93.60732 1.7±0.1 −22.9±1.7 60±3 27 4
H49β 105.30186 2.17±0.04 −22.6±0.5 59.4±1.2 34 2
H48β 111.88507 2.26±0.06 −23.4±0.6 53.2±1.5 40 4
H55γ 109.53600 0.31±0.12 −23±4 23±14 12 6
He41α 92.07194 0.76±0.07 −25.0±1.8 42±5 17 4
He39α* 106.78085 1.10±0.04 −24.0±0.0 46.5±0.0 22 2
He30α 231.99543 2.08±0.13 −23.5±1.2 42±4 46 5
M 2-9
H41α 92.03443 ............ ............ ............ ............ 7
H39α 106.73736 0.32±0.02 75.5±1.5 40.9±3.1 7 1
H31α 210.50177 ............ ............ ............ ............ 27
H30α 231.90093 0.79±0.07 73.7±1.6 34.7±4.1 21 5
H51β 93.60732 ............ ............ ............ ............ 6
H49β 105.30186 ............ ............ ............ ............ 2
H48β 111.88507 ............ ............ ............ ............ 3
H55γ 109.53600 ............ ............ ............ ............ 2
MWC 922
H41α 92.03443 0.69±0.18 29±5 40±13 16 8
H39α 106.73736 0.89±0.03 32.3±0.5 32.5±1.2 26 2
H31α-blue** 210.50177 3.0±0.5 19.2±1.2 15±3 190 40
H31α-red** 210.50177 2.8±0.5 45.1±1.6 18±4 150 40
H30α-blue** 231.90093 2.85±0.09 19.1±0.3 17.9±0.7 150 6
H30α-red** 231.90093 3.0±0.1 46.2±0.3 20.7±0.8 134 6
H51β 93.60732 ............ ............ ............ ............ 8
H49β 105.30186 0.12±0.02 38±3 29±7 4 2
H48β 111.88507 0.22±0.04 37±3 36±7 6 3
H55γ 109.53600 ............ ............ ............ ............ 3

Notes. Continuum-subtracted line fluxes, TL, are in units of antenna temperature.

(a)

Standard line notation, i.e.,  n + Δn → n level transitions with Δn = 1, 2, or 3 for α, β, and γ lines, respectively.

(b)

Formal rms noise for a ΔÆ ~ 3 km s-1 resolution, as in Figs. 3–5. Baseline subtraction or absolute calibration uncertainties are not included.

(*)

Uncertain due to line blending; line center and width fixed to match the corresponding H39α values.

(**)

The blue and read intensity peaks of the two-horned profile of the H30α and H31α lines in MWC 922 were fitted using two Gaussians.

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