Table 1. Open in new tab Continuum core...

Name	RA	Dec.	FWHM_Dec.	PA	\|$F_{\rm 3\,mm}^{\rm int.}$\|	\|$F_{\rm 3mm}^{p}$\|	R_core	T_gas	M_core	log(n_core)	Σ_core	V_lsr	ΔV	α_vir
MM1-a	18:53:18.02	1:25:25.7	2.3 × 2.2	21.4	124.2 ± 0.8	54.7 ± 0.2	2.0 ± 0.2	100.0	199 ± 32	7.4	32.7	57.6 ± 0.2	4.5 ± 0.2	0.5
MM1-b	18:53:18.29	1:25:25.9	2.2 × 2.0	102.1	9.6 ± 0.1	9.6 ± 0.2	1.9 ± 0.2	27.6	58 ± 9	7.3	11.0	57.1 ± 0.2	2.9 ± 0.2	0.6
MM1-c	18:53:18.30	1:25:13.6	3.5 × 2.4	16.0	9.1 ± 1.0	2.8 ± 0.2	2.6 ± 0.2	14.2	115 ± 19	7.0	11.1	59.3 ± 0.2	1.1 ± 0.2	0.1
MM1-d	18:53:18.50	1:25:18.4	3.8 × 2.5	32.0	10.3 ± 1.0	3.0 ± 0.2	2.7 ± 0.2	13.8	136 ± 22	7.0	12.1	58.6 ± 0.2	1.8 ± 0.2	0.1
MM1-e	18:53:18.64	1:25:28.0	4.5 × 3.5	112.9	5.6 ± 0.1	1.9 ± 0.2	3.5 ± 0.3	22.6	42 ± 7	6.5	2.2	57.4 ± 0.2	1.6 ± 0.2	0.5
MM1-f	18:53:18.19	1:25:20.3	2.7 × 2.1	152.5	6.9 ± 0.1	5.5 ± 0.2	2.1 ± 0.2	18.6	65 ± 11	7.2	9.5	56.9 ± 0.2	3.3 ± 0.2	0.8
MM1-g	18:53:18.71	1:26:1.3	3.7 × 1.6	151.0	24.5 ± 0.9	9.1 ± 0.2	2.1 ± 0.2	21.7	196 ± 32	7.4	28.3	58.4 ± 0.2	3.4 ± 0.2	0.3
MM2-a	18:53:18.60	1:24:46.7	5.3 × 4.0	23.2	62.3 ± 1.5	9.8 ± 0.2	4.1 ± 0.3	100.0	97 ± 16	6.4	3.8	56.5 ± 0.2	2.5 ± 0.2	0.7
MM2-b	18:53:18.38	1:24:54.1	6.7 × 2.9	0.8	34.0 ± 1.4	5.5 ± 0.2	3.9 ± 0.3	20.8	281 ± 46	6.9	12.2	56.2 ± 0.2	2.7 ± 0.2	0.2

Name

Dec.

FWHM_Dec.

|$F_{\rm 3\,mm}^{\rm int.}$|

|$F_{\rm 3mm}^{p}$|

R_core

T_gas

M_core

log(n_core)

Σ_core

V_lsr

ΔV

α_vir

(J2000)

maj(arcsec) × min(arcsec)

(°)

(mJy)

(mJy beam⁻¹)

(10⁻² pc)

(K)

(M_⊙)

(cm⁻³)

(g cm⁻²)

(km s⁻¹)

MM1-a

18:53:18.02

1:25:25.7

2.3 × 2.2

21.4

124.2 ± 0.8

54.7 ± 0.2

2.0 ± 0.2

100.0

199 ± 32

7.4

32.7

57.6 ± 0.2

4.5 ± 0.2

0.5

MM1-b

18:53:18.29

1:25:25.9

2.2 × 2.0

102.1

9.6 ± 0.1

9.6 ± 0.2

1.9 ± 0.2

27.6

58 ± 9

7.3

11.0

57.1 ± 0.2

2.9 ± 0.2

0.6

MM1-c

18:53:18.30

1:25:13.6

3.5 × 2.4

16.0

9.1 ± 1.0

2.8 ± 0.2

2.6 ± 0.2

14.2

115 ± 19

7.0

11.1

59.3 ± 0.2

1.1 ± 0.2

0.1

MM1-d

18:53:18.50

1:25:18.4

3.8 × 2.5

32.0

10.3 ± 1.0

3.0 ± 0.2

2.7 ± 0.2

13.8

136 ± 22

7.0

12.1

58.6 ± 0.2

1.8 ± 0.2

0.1

MM1-e

18:53:18.64

1:25:28.0

4.5 × 3.5

112.9

5.6 ± 0.1

1.9 ± 0.2

3.5 ± 0.3

22.6

42 ± 7

6.5

2.2

57.4 ± 0.2

1.6 ± 0.2

0.5

MM1-f

18:53:18.19

1:25:20.3

2.7 × 2.1

152.5

6.9 ± 0.1

5.5 ± 0.2

2.1 ± 0.2

18.6

65 ± 11

7.2

9.5

56.9 ± 0.2

3.3 ± 0.2

0.8

MM1-g

18:53:18.71

1:26:1.3

3.7 × 1.6

151.0

24.5 ± 0.9

9.1 ± 0.2

2.1 ± 0.2

21.7

196 ± 32

7.4

28.3

58.4 ± 0.2

3.4 ± 0.2

0.3

MM2-a

18:53:18.60

1:24:46.7

5.3 × 4.0

23.2

62.3 ± 1.5

9.8 ± 0.2

4.1 ± 0.3

100.0

97 ± 16

6.4

3.8

56.5 ± 0.2

2.5 ± 0.2

0.7

MM2-b

18:53:18.38

1:24:54.1

6.7 × 2.9

0.8

34.0 ± 1.4

5.5 ± 0.2

3.9 ± 0.3

20.8

281 ± 46

6.9

12.2

56.2 ± 0.2

2.7 ± 0.2

0.2

Name	RA	Dec.	FWHM_Dec.	PA	\|$F_{\rm 3\,mm}^{\rm int.}$\|	\|$F_{\rm 3mm}^{p}$\|	R_core	T_gas	M_core	log(n_core)	Σ_core	V_lsr	ΔV	α_vir
MM1-a	18:53:18.02	1:25:25.7	2.3 × 2.2	21.4	124.2 ± 0.8	54.7 ± 0.2	2.0 ± 0.2	100.0	199 ± 32	7.4	32.7	57.6 ± 0.2	4.5 ± 0.2	0.5
MM1-b	18:53:18.29	1:25:25.9	2.2 × 2.0	102.1	9.6 ± 0.1	9.6 ± 0.2	1.9 ± 0.2	27.6	58 ± 9	7.3	11.0	57.1 ± 0.2	2.9 ± 0.2	0.6
MM1-c	18:53:18.30	1:25:13.6	3.5 × 2.4	16.0	9.1 ± 1.0	2.8 ± 0.2	2.6 ± 0.2	14.2	115 ± 19	7.0	11.1	59.3 ± 0.2	1.1 ± 0.2	0.1
MM1-d	18:53:18.50	1:25:18.4	3.8 × 2.5	32.0	10.3 ± 1.0	3.0 ± 0.2	2.7 ± 0.2	13.8	136 ± 22	7.0	12.1	58.6 ± 0.2	1.8 ± 0.2	0.1
MM1-e	18:53:18.64	1:25:28.0	4.5 × 3.5	112.9	5.6 ± 0.1	1.9 ± 0.2	3.5 ± 0.3	22.6	42 ± 7	6.5	2.2	57.4 ± 0.2	1.6 ± 0.2	0.5
MM1-f	18:53:18.19	1:25:20.3	2.7 × 2.1	152.5	6.9 ± 0.1	5.5 ± 0.2	2.1 ± 0.2	18.6	65 ± 11	7.2	9.5	56.9 ± 0.2	3.3 ± 0.2	0.8
MM1-g	18:53:18.71	1:26:1.3	3.7 × 1.6	151.0	24.5 ± 0.9	9.1 ± 0.2	2.1 ± 0.2	21.7	196 ± 32	7.4	28.3	58.4 ± 0.2	3.4 ± 0.2	0.3
MM2-a	18:53:18.60	1:24:46.7	5.3 × 4.0	23.2	62.3 ± 1.5	9.8 ± 0.2	4.1 ± 0.3	100.0	97 ± 16	6.4	3.8	56.5 ± 0.2	2.5 ± 0.2	0.7
MM2-b	18:53:18.38	1:24:54.1	6.7 × 2.9	0.8	34.0 ± 1.4	5.5 ± 0.2	3.9 ± 0.3	20.8	281 ± 46	6.9	12.2	56.2 ± 0.2	2.7 ± 0.2	0.2

Table 1.

Open in new tab

Continuum core parameters.

Name	RA	Dec.	FWHM_Dec.	PA	\|$F_{\rm 3\,mm}^{\rm int.}$\|	\|$F_{\rm 3mm}^{p}$\|	R_core	T_gas	M_core	log(n_core)	Σ_core	V_lsr	ΔV	α_vir
	(J2000)	(J2000)	maj(arcsec) × min(arcsec)	(°)	(mJy)	(mJy beam⁻¹)	(10⁻² pc)	(K)	(M_⊙)	(cm⁻³)	(g cm⁻²)	(km s⁻¹)	(km s⁻¹)
MM1-a	18:53:18.02	1:25:25.7	2.3 × 2.2	21.4	124.2 ± 0.8	54.7 ± 0.2	2.0 ± 0.2	100.0	199 ± 32	7.4	32.7	57.6 ± 0.2	4.5 ± 0.2	0.5
MM1-b	18:53:18.29	1:25:25.9	2.2 × 2.0	102.1	9.6 ± 0.1	9.6 ± 0.2	1.9 ± 0.2	27.6	58 ± 9	7.3	11.0	57.1 ± 0.2	2.9 ± 0.2	0.6
MM1-c	18:53:18.30	1:25:13.6	3.5 × 2.4	16.0	9.1 ± 1.0	2.8 ± 0.2	2.6 ± 0.2	14.2	115 ± 19	7.0	11.1	59.3 ± 0.2	1.1 ± 0.2	0.1
MM1-d	18:53:18.50	1:25:18.4	3.8 × 2.5	32.0	10.3 ± 1.0	3.0 ± 0.2	2.7 ± 0.2	13.8	136 ± 22	7.0	12.1	58.6 ± 0.2	1.8 ± 0.2	0.1
MM1-e	18:53:18.64	1:25:28.0	4.5 × 3.5	112.9	5.6 ± 0.1	1.9 ± 0.2	3.5 ± 0.3	22.6	42 ± 7	6.5	2.2	57.4 ± 0.2	1.6 ± 0.2	0.5
MM1-f	18:53:18.19	1:25:20.3	2.7 × 2.1	152.5	6.9 ± 0.1	5.5 ± 0.2	2.1 ± 0.2	18.6	65 ± 11	7.2	9.5	56.9 ± 0.2	3.3 ± 0.2	0.8
MM1-g	18:53:18.71	1:26:1.3	3.7 × 1.6	151.0	24.5 ± 0.9	9.1 ± 0.2	2.1 ± 0.2	21.7	196 ± 32	7.4	28.3	58.4 ± 0.2	3.4 ± 0.2	0.3
MM2-a	18:53:18.60	1:24:46.7	5.3 × 4.0	23.2	62.3 ± 1.5	9.8 ± 0.2	4.1 ± 0.3	100.0	97 ± 16	6.4	3.8	56.5 ± 0.2	2.5 ± 0.2	0.7
MM2-b	18:53:18.38	1:24:54.1	6.7 × 2.9	0.8	34.0 ± 1.4	5.5 ± 0.2	3.9 ± 0.3	20.8	281 ± 46	6.9	12.2	56.2 ± 0.2	2.7 ± 0.2	0.2

Name	RA	Dec.	FWHM_Dec.	PA	\|$F_{\rm 3\,mm}^{\rm int.}$\|	\|$F_{\rm 3mm}^{p}$\|	R_core	T_gas	M_core	log(n_core)	Σ_core	V_lsr	ΔV	α_vir
	(J2000)	(J2000)	maj(arcsec) × min(arcsec)	(°)	(mJy)	(mJy beam⁻¹)	(10⁻² pc)	(K)	(M_⊙)	(cm⁻³)	(g cm⁻²)	(km s⁻¹)	(km s⁻¹)
MM1-a	18:53:18.02	1:25:25.7	2.3 × 2.2	21.4	124.2 ± 0.8	54.7 ± 0.2	2.0 ± 0.2	100.0	199 ± 32	7.4	32.7	57.6 ± 0.2	4.5 ± 0.2	0.5
MM1-b	18:53:18.29	1:25:25.9	2.2 × 2.0	102.1	9.6 ± 0.1	9.6 ± 0.2	1.9 ± 0.2	27.6	58 ± 9	7.3	11.0	57.1 ± 0.2	2.9 ± 0.2	0.6
MM1-c	18:53:18.30	1:25:13.6	3.5 × 2.4	16.0	9.1 ± 1.0	2.8 ± 0.2	2.6 ± 0.2	14.2	115 ± 19	7.0	11.1	59.3 ± 0.2	1.1 ± 0.2	0.1
MM1-d	18:53:18.50	1:25:18.4	3.8 × 2.5	32.0	10.3 ± 1.0	3.0 ± 0.2	2.7 ± 0.2	13.8	136 ± 22	7.0	12.1	58.6 ± 0.2	1.8 ± 0.2	0.1
MM1-e	18:53:18.64	1:25:28.0	4.5 × 3.5	112.9	5.6 ± 0.1	1.9 ± 0.2	3.5 ± 0.3	22.6	42 ± 7	6.5	2.2	57.4 ± 0.2	1.6 ± 0.2	0.5
MM1-f	18:53:18.19	1:25:20.3	2.7 × 2.1	152.5	6.9 ± 0.1	5.5 ± 0.2	2.1 ± 0.2	18.6	65 ± 11	7.2	9.5	56.9 ± 0.2	3.3 ± 0.2	0.8
MM1-g	18:53:18.71	1:26:1.3	3.7 × 1.6	151.0	24.5 ± 0.9	9.1 ± 0.2	2.1 ± 0.2	21.7	196 ± 32	7.4	28.3	58.4 ± 0.2	3.4 ± 0.2	0.3
MM2-a	18:53:18.60	1:24:46.7	5.3 × 4.0	23.2	62.3 ± 1.5	9.8 ± 0.2	4.1 ± 0.3	100.0	97 ± 16	6.4	3.8	56.5 ± 0.2	2.5 ± 0.2	0.7
MM2-b	18:53:18.38	1:24:54.1	6.7 × 2.9	0.8	34.0 ± 1.4	5.5 ± 0.2	3.9 ± 0.3	20.8	281 ± 46	6.9	12.2	56.2 ± 0.2	2.7 ± 0.2	0.2

Note. R_core is derived from R_eff/3600 × π/180 × D given the relation |$R_{\rm eff} = \sqrt{FWHM_{\rm dec}^{\rm maj}\times FWHM_{\rm dec}^{\rm min}}/2$|⁠, and the distance D of the core. Gas temperature for all the cores, except for MM1-a and MM2-a, is estimated from the kinetic temperature map obtained from VLA observations of NH₃ by Lu et al. (2014). For cores MM1-a and MM2-a, the temperature is assumed to be 100 K, given their association with a hot molecular core and an UC-H ii region, respectively. V_lsr and ΔV along with the associated errors are derived from single Gaussian component fit to the average spectrum of H¹³CO⁺ (1–0) over each core. The errors for the fluxes result from the 2D Gaussian fitting in the core extraction, while the ones for R_core, M_core, and n_core are mainly due to the distance uncertainty.

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