Colliding filaments in the molecular cloud G34 | Astronomy & Astrophysics (A&A)

Open Access

Table 2

Physical parameters of the clumps.

ID	l	b	R_eff	σ_tot	T_ex	$N_{H_{2}}$ ${N_{{{\rm{H}}_2}}}$	M	M_vir	α_vir	Σ
	(deg)	(deg)	(pc)	(km s⁻¹)	(K)	(10²¹ cm⁻²)	(M_⊙)	(M_⊙)		(10⁻³ g cm⁻²)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)	(11)
1	34.55	−1.35	2.18	${0.80}_{- 0.07}^{+ 0.07}$ $0.80_{ - 0.07}^{ + 0.07}$	${8.43}_{- 0.16}^{+ 0.16}$ $8.43_{ - 0.16}^{ + 0.16}$	${9.24}_{- 3.08}^{+ 3.08}$ $9.24_{ - 3.08}^{ + 3.08}$	${777.90}_{- 1198.73}^{+ 1198.73}$ $777.90_{ - 1198.73}^{ + 1198.73}$	${1020.31}_{- 275.34}^{+ 275.34}$ $1020.31_{ - 275.34}^{ + 275.34}$	${1.31}_{- 2.05}^{+ 2.05}$ $1.31_{ - 2.05}^{ + 2.05}$	${10.84}_{- 3.63}^{+ 3.63}$ $10.84_{ - 3.63}^{ + 3.63}$
2	34.41	−1.07	2.61	${0.91}_{- 0.10}^{+ 0.10}$ $0.91_{ - 0.10}^{ + 0.10}$	${9.40}_{- 0.19}^{+ 0.19}$ $9.40_{ - 0.19}^{ + 0.19}$	${11.54}_{- 3.85}^{+ 3.85}$ $11.54_{ - 3.85}^{ + 3.85}$	${1249.69}_{- 1859.41}^{+ 1859.41}$ $1249.69_{ - 1859.41}^{ + 1859.41}$	${1623.14}_{- 480.17}^{+ 480.17}$ $1623.14_{ - 480.17}^{ + 480.17}$	${1.30}_{- 1.97}^{+ 1.97}$ $1.30_{ - 1.97}^{ + 1.97}$	${12.16}_{- 3.94}^{+ 3.94}$ $12.16_{ - 3.94}^{ + 3.94}$
3	35.84	−0.88	2.46	${0.87}_{- 0.17}^{+ 0.17}$ $0.87_{ - 0.17}^{ + 0.17}$	${9.40}_{- 0.17}^{+ 0.17}$ $9.40_{ - 0.17}^{ + 0.17}$	${9.40}_{- 3.13}^{+ 3.13}$ $9.40_{ - 3.13}^{ + 3.13}$	${1357.11}_{- 1578.66}^{+ 1578.66}$ $1357.11_{ - 1578.66}^{ + 1578.66}$	${1485.92}_{- 647.55}^{+ 647.55}$ $1485.92_{ - 647.55}^{ + 647.55}$	${1.09}_{- 1.36}^{+ 1.36}$ $1.09_{ - 1.36}^{ + 1.36}$	${14.94}_{- 3.78}^{+ 3.78}$ $14.94_{ - 3.78}^{ + 3.78}$
4	34.45	−0.79	1.68	${0.88}_{- 0.11}^{+ 0.11}$ $0.88_{ - 0.11}^{ + 0.11}$	${10.23}_{- 0.14}^{+ 0.14}$ $10.23_{ - 0.14}^{ + 0.14}$	${13.31}_{- 4.44}^{+ 4.44}$ $13.31_{ - 4.44}^{ + 4.44}$	${731.93}_{- 1109.14}^{+ 1109.14}$ $731.93_{ - 1109.14}^{ + 1109.14}$	${1070.37}_{- 343.96}^{+ 343.96}$ $1070.37_{ - 343.96}^{ + 343.96}$	${1.46}_{- 2.27}^{+ 2.27}$ $1.46_{ - 2.27}^{ + 2.27}$	${17.27}_{- 5.62}^{+ 5.62}$ $17.27_{ - 5.62}^{ + 5.62}$
5*	34.38	−0.71	1.90	${0.70}_{- 0.10}^{+ 0.10}$ $0.70_{ - 0.10}^{ + 0.10}$	${9.70}_{- 0.15}^{+ 0.15}$ $9.70_{ - 0.15}^{ + 0.15}$	${13.18}_{- 4.39}^{+ 4.39}$ $13.18_{ - 4.39}^{ + 4.39}$	${758.43}_{- 1116.33}^{+ 1116.33}$ $758.43_{ - 1116.33}^{ + 1116.33}$	${694.46}_{- 247.23}^{+ 247.23}$ $694.46_{ - 247.23}^{ + 247.23}$	${0.92}_{- 1.39}^{+ 1.39}$ $0.92_{ - 1.39}^{ + 1.39}$	${13.99}_{- 4.45}^{+ 4.45}$ $13.99_{ - 4.45}^{ + 4.45}$
6*	35.10	−0.39	2.66	${0.74}_{- 0.10}^{+ 0.10}$ $0.74_{ - 0.10}^{ + 0.10}$	${9.57}_{- 0.21}^{+ 0.21}$ $9.57_{ - 0.21}^{ + 0.21}$	${10.23}_{- 3.41}^{+ 3.41}$ $10.23_{ - 3.41}^{ + 3.41}$	${1852.42}_{- 2250.47}^{+ 2250.47}$ $1852.42_{ - 2250.47}^{ + 2250.47}$	${1339.05}_{- 458.28}^{+ 458.28}$ $1339.05_{ - 458.28}^{ + 458.28}$	${0.72}_{- 0.91}^{+ 0.91}$ $0.72_{ - 0.91}^{ + 0.91}$	${17.34}_{- 4.59}^{+ 4.59}$ $17.34_{ - 4.59}^{ + 4.59}$
7	34.34	−0.38	2.32	${0.84}_{- 0.08}^{+ 0.08}$ $0.84_{ - 0.08}^{ + 0.08}$	${8.46}_{- 0.19}^{+ 0.19}$ $8.46_{ - 0.19}^{ + 0.19}$	${9.11}_{- 3.04}^{+ 3.04}$ $9.11_{ - 3.04}^{ + 3.04}$	${793.90}_{- 908.66}^{+ 908.66}$ $793.90_{ - 908.66}^{ + 908.66}$	${1334.57}_{- 388.94}^{+ 388.94}$ $1334.57_{ - 388.94}^{ + 388.94}$	${1.68}_{- 1.99}^{+ 1.99}$ $1.68_{ - 1.99}^{ + 1.99}$	${9.82}_{- 2.44}^{+ 2.44}$ $9.82_{ - 2.44}^{ + 2.44}$
8	34.15	−0.34	2.24	${1.02}_{- 0.14}^{+ 0.14}$ $1.02_{ - 0.14}^{ + 0.14}$	${8.48}_{- 0.22}^{+ 0.22}$ $8.48_{ - 0.22}^{ + 0.22}$	${10.74}_{- 3.58}^{+ 3.58}$ $10.74_{ - 3.58}^{ + 3.58}$	${1274.26}_{- 1672.62}^{+ 1672.62}$ $1274.26_{ - 1672.62}^{ + 1672.62}$	${1726.99}_{- 603.35}^{+ 603.35}$ $1726.99_{ - 603.35}^{ + 603.35}$	${1.36}_{- 1.84}^{+ 1.84}$ $1.36_{ - 1.84}^{ + 1.84}$	${16.89}_{- 4.81}^{+ 4.81}$ $16.89_{ - 4.81}^{ + 4.81}$
9*	34.03	−0.31	2.11	${0.79}_{- 0.10}^{+ 0.10}$ $0.79_{ - 0.10}^{ + 0.10}$	${8.26}_{- 0.18}^{+ 0.18}$ $8.26_{ - 0.18}^{ + 0.18}$	${11.68}_{- 3.89}^{+ 3.89}$ $11.68_{ - 3.89}^{ + 3.89}$	${1114.82}_{- 1674.95}^{+ 1674.95}$ $1114.82_{ - 1674.95}^{ + 1674.95}$	${976.92}_{- 313.32}^{+ 313.32}$ $976.92_{ - 313.32}^{ + 313.32}$	${0.88}_{- 1.35}^{+ 1.35}$ $0.88_{ - 1.35}^{ + 1.35}$	${16.67}_{- 5.43}^{+ 5.43}$ $16.67_{ - 5.43}^{ + 5.43}$
10	35.21	−0.08	1.94	${0.95}_{- 0.18}^{+ 0.18}$ $0.95_{ - 0.18}^{ + 0.18}$	${9.62}_{- 0.15}^{+ 0.15}$ $9.62_{ - 0.15}^{ + 0.15}$	${10.65}_{- 3.55}^{+ 3.55}$ $10.65_{ - 3.55}^{ + 3.55}$	${894.69}_{- 1091.32}^{+ 1091.32}$ $894.69_{ - 1091.32}^{ + 1091.32}$	${1534.54}_{- 679.23}^{+ 679.23}$ $1534.54_{ - 679.23}^{ + 679.23}$	${1.72}_{- 2.23}^{+ 2.23}$ $1.72_{ - 2.23}^{ + 2.23}$	${15.74}_{- 4.15}^{+ 4.15}$ $15.74_{ - 4.15}^{ + 4.15}$
11^*	35.34	0.06	4.13	${0.88}_{- 0.11}^{+ 0.11}$ $0.88_{ - 0.11}^{ + 0.11}$	${8.94}_{- 0.16}^{+ 0.16}$ $8.94_{ - 0.16}^{ + 0.16}$	${10.91}_{- 3.64}^{+ 3.64}$ $10.91_{ - 3.64}^{ + 3.64}$	${2957.79}_{- 3681.14}^{+ 3681.14}$ $2957.79_{ - 3681.14}^{ + 3681.14}$	${2307.52}_{- 762.28}^{+ 762.28}$ $2307.52_{ - 762.28}^{ + 762.28}$	${0.78}_{- 1.00}^{+ 1.00}$ $0.78_{ - 1.00}^{ + 1.00}$	${11.51}_{- 3.14}^{+ 3.14}$ $11.51_{ - 3.14}^{ + 3.14}$
12	35.25	0.19	2.05	${0.86}_{- 0.08}^{+ 0.08}$ $0.86_{ - 0.08}^{ + 0.08}$	${9.50}_{- 0.12}^{+ 0.12}$ $9.50_{ - 0.12}^{ + 0.12}$	${9.96}_{- 3.32}^{+ 3.32}$ $9.96_{ - 3.32}^{ + 3.32}$	${755.35}_{- 952.63}^{+ 952.63}$ $755.35_{ - 952.63}^{ + 952.63}$	${1305.90}_{- 371.99}^{+ 371.99}$ $1305.90_{ - 371.99}^{ + 371.99}$	${1.73}_{- 2.24}^{+ 2.24}$ $1.73_{ - 2.24}^{ + 2.24}$	${11.96}_{- 3.27}^{+ 3.27}$ $11.96_{ - 3.27}^{ + 3.27}$
13	32.76	0.19	2.32	${2.17}_{- 0.24}^{+ 0.24}$ $2.17_{ - 0.24}^{ + 0.24}$	${9.71}_{- 0.20}^{+ 0.20}$ $9.71_{ - 0.20}^{ + 0.20}$	${19.23}_{- 6.41}^{+ 6.41}$ $19.23_{ - 6.41}^{ + 6.41}$	${3891.16}_{- 3941.31}^{+ 3941.31}$ $3891.16_{ - 3941.31}^{ + 3941.31}$	${8922.00}_{- 2720.88}^{+ 2720.88}$ $8922.00_{ - 2720.88}^{ + 2720.88}$	${2.29}_{- 2.43}^{+ 2.43}$ $2.29_{ - 2.43}^{ + 2.43}$	${48.13}_{- 10.59}^{+ 10.59}$ $48.13_{ - 10.59}^{ + 10.59}$
14^*	35.28	0.39	3.15	${1.02}_{- 0.13}^{+ 0.13}$ $1.02_{ - 0.13}^{ + 0.13}$	${8.87}_{- 0.19}^{+ 0.19}$ $8.87_{ - 0.19}^{ + 0.19}$	${9.81}_{- 3.27}^{+ 3.27}$ $9.81_{ - 3.27}^{ + 3.27}$	${2588.58}_{- 2533.43}^{+ 2533.43}$ $2588.58_{ - 2533.43}^{ + 2533.43}$	${2559.03}_{- 852.08}^{+ 852.08}$ $2559.03_{ - 852.08}^{ + 852.08}$	${0.99}_{- 1.02}^{+ 1.02}$ $0.99_{ - 1.02}^{ + 1.02}$	${17.37}_{- 3.72}^{+ 3.72}$ $17.37_{ - 3.72}^{ + 3.72}$
15	35.32	0.53	2.11	${0.91}_{- 0.15}^{+ 0.15}$ $0.91_{ - 0.15}^{ + 0.15}$	${9.07}_{- 0.13}^{+ 0.13}$ $9.07_{ - 0.13}^{ + 0.13}$	${9.56}_{- 3.19}^{+ 3.19}$ $9.56_{ - 3.19}^{ + 3.19}$	${1077.24}_{- 1031.82}^{+ 1031.82}$ $1077.24_{ - 1031.82}^{ + 1031.82}$	${1333.85}_{- 525.69}^{+ 525.69}$ $1333.85_{ - 525.69}^{ + 525.69}$	${1.24}_{- 1.28}^{+ 1.28}$ $1.24_{ - 1.28}^{ + 1.28}$	${16.09}_{- 3.34}^{+ 3.34}$ $16.09_{ - 3.34}^{ + 3.34}$
16	35.49	0.87	2.72	${0.88}_{- 0.19}^{+ 0.19}$ $0.88_{ - 0.19}^{ + 0.19}$	${7.57}_{- 0.16}^{+ 0.16}$ $7.57_{ - 0.16}^{ + 0.16}$	${9.47}_{- 3.16}^{+ 3.16}$ $9.47_{ - 3.16}^{ + 3.16}$	${1309.86}_{- 1475.18}^{+ 1475.18}$ $1309.86_{ - 1475.18}^{ + 1475.18}$	${1606.37}_{- 772.42}^{+ 772.42}$ $1606.37_{ - 772.42}^{ + 772.42}$	${1.23}_{- 1.50}^{+ 1.50}$ $1.23_{ - 1.50}^{ + 1.50}$	${11.78}_{- 2.89}^{+ 2.89}$ $11.78_{ - 2.89}^{ + 2.89}$

Notes. The clump ID (1–16) corresponds to the number in Fig. 2a, 4, and 8. The columns are as follows: (1) clump ID. Clumps labeled with 5*, 6*, 9*, 11*, and 14* are identified as being in a state of virial collapse. Note: The determination of collapse does not take into account the uncertainties in mass and virial mass arising from errors in the distance, X_factor, and σ_tot; (2) galactic longitude; (3) galactic latitude; (4) deconvolved effective radius of the clump, calculated as $R_{eff} = D \times \sqrt{A / π - {(θ_{beam} / 2)}^{2}}$ ${R_{{\rm{eff}}}} = D \times \sqrt {A/\pi - {{\left( {{\theta _{{\rm{beam}}}}/2} \right)}^2}}$ , where D is the distance to the molecular cloud, A is the angular area of the clump, and θ_beam is the beam size of the ¹³CO data (52″); (5) average total velocity dispersion. The uncertainty arises from the Gaussian fitting errors in FWHM(¹³CO) and $T_{mb}^{*} (^{12} CO)$ $T_{{\rm{mb}}}^*\left( {^{12}{\rm{CO}}} \right)$ ; (6) average excitation temperature. The uncertainty comes from the Gaussian fitting errors in $T_{mb}^{*} (^{12} CO)$ $T_{{\rm{mb}}}^*\left( {^{12}{\rm{CO}}} \right)$ ; (7) average H₂ column density. The uncertainty arises from the errors in X_factor; (8) clump mass. The uncertainty arises from the errors in the distance and X_factor; (9) clump virial mass. The uncertainty arises from the errors in the distance, X_factor, and σ_tot; (10) clump virial parameter, calculated as α_υir = M_vir / M; (11) mass surface density, calculated as $Σ = M / (π R_{eff}^{2})$ $\Sigma = M/\left( {\pi R_{{\rm{eff}}}^2} \right)$ . The uncertainty arises from the mass and distance errors.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.