Table 2. Open in new tab Observed...

	Molecule	Beam size	δv	rms	δν
Cloud C	α(J2000) = 18:42:52.3, δ(J2000) = −4:02:26.2, map size = 264 × 252 arcsec²
	H¹³CO⁺ (1–0)	30	0.28	0.010	80
	HN¹³C (1–0)	30	0.28	0.007	80
	SiO (2–1 )	30	0.56	0.010	160
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.32	0.014	160
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.32	0.014	160
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.32	0.014	160
Cloud F	α(J2000) = 18:53:18, δ(J2000) = 1:27:22.1, map size = 144 × 264 arcsec²
	H¹³CO⁺ (1–0)	30	0.14	0.012	40
	HN¹³C (1–0)	30	0.14	0.011	40
	SiO (2–1 )	30	0.56	0.006	160
	CH₃OH (3_{1, 2}–2_{1, 1})	18	0.80	0.005	380
	CH₃OH (3_{−2, 2}–2_{−2, 1})	18	0.80	0.005	380
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.80	0.005	380
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.80	0.005	380
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.80	0.006	380
Cloud G	α(J2000) = 18:56:45, δ(J2000) = 1:21:45.0, map size = 204 × 240 arcsec²
	H¹³CO⁺ (1–0)	30	0.28	0.011	80
	HN¹³C (1–0)	30	0.28	0.010	80
	SiO (2–1 )	30	0.28	0.011	80
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.40	0.008	190
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.40	0.008	190
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.40	0.008	190

Molecule

Beam size

δv

rms

δν

(arcsec)

(km s⁻¹)

(K)

(kHz)

Cloud C

α(J2000) = 18:42:52.3, δ(J2000) = −4:02:26.2, map size = 264 × 252 arcsec²

H¹³CO⁺ (1–0)

0.28

0.010

HN¹³C (1–0)

0.28

0.007

SiO (2–1 )

0.56

0.010

160

CH₃OH (3_{0, 3}–2|$_{0,2}^{++}$|⁠)

0.32

0.014

160

CH₃OH (3_{−1, 3}–2_{−1, 2})

0.32

0.014

160

CH₃OH (3_{0, 3}–2_{0, 2})

0.32

0.014

160

Cloud F

α(J2000) = 18:53:18, δ(J2000) = 1:27:22.1, map size = 144 × 264 arcsec²

H¹³CO⁺ (1–0)

0.14

0.012

HN¹³C (1–0)

0.14

0.011

SiO (2–1 )

0.56

0.006

160

CH₃OH (3_{1, 2}–2_{1, 1})

0.80

0.005

380

CH₃OH (3_{−2, 2}–2_{−2, 1})

0.80

0.005

380

CH₃OH (3_{0, 3}–2|$_{0,2}^{++}$|⁠)

0.80

0.005

380

CH₃OH (3_{−1, 3}–2_{−1, 2})

0.80

0.005

380

CH₃OH (3_{0, 3}–2_{0, 2})

0.80

0.006

380

Cloud G

α(J2000) = 18:56:45, δ(J2000) = 1:21:45.0, map size = 204 × 240 arcsec²

H¹³CO⁺ (1–0)

0.28

0.011

HN¹³C (1–0)

0.28

0.010

SiO (2–1 )

0.28

0.011

CH₃OH (3_{0, 3}–2|$_{0,2}^{++}$|⁠)

0.40

0.008

190

CH₃OH (3_{−1, 3}–2_{−1, 2})

0.40

0.008

190

CH₃OH (3_{0, 3}–2_{0, 2})

0.40

0.008

190

	Molecule	Beam size	δv	rms	δν
Cloud C	α(J2000) = 18:42:52.3, δ(J2000) = −4:02:26.2, map size = 264 × 252 arcsec²
	H¹³CO⁺ (1–0)	30	0.28	0.010	80
	HN¹³C (1–0)	30	0.28	0.007	80
	SiO (2–1 )	30	0.56	0.010	160
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.32	0.014	160
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.32	0.014	160
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.32	0.014	160
Cloud F	α(J2000) = 18:53:18, δ(J2000) = 1:27:22.1, map size = 144 × 264 arcsec²
	H¹³CO⁺ (1–0)	30	0.14	0.012	40
	HN¹³C (1–0)	30	0.14	0.011	40
	SiO (2–1 )	30	0.56	0.006	160
	CH₃OH (3_{1, 2}–2_{1, 1})	18	0.80	0.005	380
	CH₃OH (3_{−2, 2}–2_{−2, 1})	18	0.80	0.005	380
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.80	0.005	380
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.80	0.005	380
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.80	0.006	380
Cloud G	α(J2000) = 18:56:45, δ(J2000) = 1:21:45.0, map size = 204 × 240 arcsec²
	H¹³CO⁺ (1–0)	30	0.28	0.011	80
	HN¹³C (1–0)	30	0.28	0.010	80
	SiO (2–1 )	30	0.28	0.011	80
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.40	0.008	190
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.40	0.008	190
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.40	0.008	190

Table 2.

Open in new tab

Observed molecular transitions, final beam sizes, and velocity resolution of the data cubes used in our analysis.

	Molecule	Beam size	δv	rms	δν
		(arcsec)	(km s⁻¹)	(K)	(kHz)
Cloud C	α(J2000) = 18:42:52.3, δ(J2000) = −4:02:26.2, map size = 264 × 252 arcsec²
	H¹³CO⁺ (1–0)	30	0.28	0.010	80
	HN¹³C (1–0)	30	0.28	0.007	80
	SiO (2–1 )	30	0.56	0.010	160
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.32	0.014	160
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.32	0.014	160
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.32	0.014	160
Cloud F	α(J2000) = 18:53:18, δ(J2000) = 1:27:22.1, map size = 144 × 264 arcsec²
	H¹³CO⁺ (1–0)	30	0.14	0.012	40
	HN¹³C (1–0)	30	0.14	0.011	40
	SiO (2–1 )	30	0.56	0.006	160
	CH₃OH (3_{1, 2}–2_{1, 1})	18	0.80	0.005	380
	CH₃OH (3_{−2, 2}–2_{−2, 1})	18	0.80	0.005	380
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.80	0.005	380
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.80	0.005	380
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.80	0.006	380
Cloud G	α(J2000) = 18:56:45, δ(J2000) = 1:21:45.0, map size = 204 × 240 arcsec²
	H¹³CO⁺ (1–0)	30	0.28	0.011	80
	HN¹³C (1–0)	30	0.28	0.010	80
	SiO (2–1 )	30	0.28	0.011	80
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.40	0.008	190
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.40	0.008	190
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.40	0.008	190

	Molecule	Beam size	δv	rms	δν
		(arcsec)	(km s⁻¹)	(K)	(kHz)
Cloud C	α(J2000) = 18:42:52.3, δ(J2000) = −4:02:26.2, map size = 264 × 252 arcsec²
	H¹³CO⁺ (1–0)	30	0.28	0.010	80
	HN¹³C (1–0)	30	0.28	0.007	80
	SiO (2–1 )	30	0.56	0.010	160
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.32	0.014	160
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.32	0.014	160
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.32	0.014	160
Cloud F	α(J2000) = 18:53:18, δ(J2000) = 1:27:22.1, map size = 144 × 264 arcsec²
	H¹³CO⁺ (1–0)	30	0.14	0.012	40
	HN¹³C (1–0)	30	0.14	0.011	40
	SiO (2–1 )	30	0.56	0.006	160
	CH₃OH (3_{1, 2}–2_{1, 1})	18	0.80	0.005	380
	CH₃OH (3_{−2, 2}–2_{−2, 1})	18	0.80	0.005	380
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.80	0.005	380
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.80	0.005	380
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.80	0.006	380
Cloud G	α(J2000) = 18:56:45, δ(J2000) = 1:21:45.0, map size = 204 × 240 arcsec²
	H¹³CO⁺ (1–0)	30	0.28	0.011	80
	HN¹³C (1–0)	30	0.28	0.010	80
	SiO (2–1 )	30	0.28	0.011	80
	CH₃OH (3_{0, 3}–2\|$_{0,2}^{++}$\|⁠)	18	0.40	0.008	190
	CH₃OH (3_{−1, 3}–2_{−1, 2})	18	0.40	0.008	190
	CH₃OH (3_{0, 3}–2_{0, 2})	18	0.40	0.008	190

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