Hierarchical fragmentation in hub-filament-system I18308 observed as part of the INFANT survey

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Table 2

Observed and derived parameters of dense cores.

ID	α(J2000)^a	δ(J2000)^a	FWHM^a	PA	Flux^a	R	T_NH₃^a	σ_{NH_{3, tot}}	Mass^a	n_H₂	Σ	M_vir	α
	(hh:mm:ss)	(dd:mm:ss)	(″ × ″)	(deg)	(mJy)	(10³AU)	(K)	(km s^-1)	(M_⊙)	(10⁷ cm^-3)	(g cm^-2)	(M_⊙)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)	(11)	(12)	(13)	(14)
Hub

c1^★	18:33:33.27	-8:39:16.0	1.58×1.17	127	20.1±2.0	2.9±0.3	19.8±0.6	0.84±0.03	9.4 $_{- 3.4}^{+ 5.2}$ $^{+5.2}_{-3.4}$	1.2 $_{- 0.5}^{+ 0.9}$ $^{+0.9}_{-0.5}$	3.2 $_{- 1.2}^{+ 2.0}$ $^{+2.0}_{-1.2}$	10.7±1.3	1.1 $_{- 0.4}^{+ 0.7}$ $^{+0.7}_{-0.4}$
c2	18:33:33.18	-8:39:17.0	1.04×0.76	74	3.7±0.4	1.6±0.2	16.8±0.7	0.81±0.03	2.1 $_{- 0.7}^{+ 1.2}$ $^{+1.2}_{-0.7}$	1.5 $_{- 0.6}^{+ 1.1}$ $^{+1.1}_{-0.6}$	2.3 $_{- 0.8}^{+ 1.5}$ $^{+1.5}_{-0.8}$	5.7±0.7	2.7 $_{- 1.0}^{+ 1.5}$ $^{+1.5}_{-1.0}$
c3^★	18:33:33.16	-8:39:15.0	0.96×0.64	84	90.7±9.0	1.3±0.1	21.7±0.9	1.09±0.04	37.6 $_{- 13.3}^{+ 20.8}$ $^{+20.8}_{-13.3}$	50.2 $_{- 20.8}^{+ 38.4}$ $^{+38.4}_{-20.8}$	61.6 $_{- 23.8}^{+ 40.0}$ $^{+40.0}_{-23.8}$	8.5±1.1	0.2 $_{- 0.10}^{+ 0.13}$ $^{+0.13}_{-0.10}$
c4	18:33:33.14	-8:39:13.0	1.07×0.84	130	5.5±0.6	1.8±0.2	19.2±0.9	0.86±0.04	2.7 $_{- 0.9}^{+ 1.5}$ $^{+1.5}_{-0.9}$	1.4 $_{- 0.6}^{+ 1.1}$ $^{+1.1}_{-0.6}$	2.3 $_{- 0.9}^{+ 1.5}$ $^{+1.5}_{-0.9}$	7.0±1.0	2.6 $_{- 1.0}^{+ 1.0}$ $^{+1.0}_{-1.0}$
c5^★	18:33:33.07	-8:39:15.0	0.88×0.82	58	6.9±0.7	1.5±0.2	21.1±1.0	1.04±0.04	3.0 $_{- 1.0}^{+ 1.6}$ $^{+1.6}_{-1.0}$	2.6 $_{- 1.1}^{+ 1.9}$ $^{+1.9}_{-1.1}$	3.7 $_{- 1.4}^{+ 2.3}$ $^{+2.3}_{-1.4}$	8.8±1.1	3.0 $_{- 1.1}^{+ 1.7}$ $^{+1.7}_{-1.1}$
c6^★	18:33:33.05	-8:39:18.0	1.33×0.86	99	2.5±0.3	2.1±0.2	19.0±1.5	0.81±0.06	1.2 $_{- 0.4}^{+ 0.7}$ $^{+0.7}_{-0.4}$	0.4 $_{- 0.2}^{+ 0.3}$ $^{+0.3}_{-0.2}$	0.8 $_{- 0.3}^{+ 0.5}$ $^{+0.5}_{-0.3}$	7.4±1.4	6.0 $_{- 3.6}^{+ 2.4}$ $^{+2.4}_{-3.6}$
c7^★	18:33:32.93	-8:39:17.0	0.99×0.81	103	2.8±0.3	1.6±0.2	24.4±1.8	0.64±0.04	1.0 $_{- 0.4}^{+ 0.6}$ $^{+0.6}_{-0.4}$	0.7 $_{- 0.3}^{+ 0.5}$ $^{+0.5}_{-0.3}$	1.1 $_{- 0.4}^{+ 0.7}$ $^{+0.7}_{-0.4}$	3.4±0.6	3.4 $_{- 1.3}^{+ 2.0}$ $^{+2.0}_{-1.3}$
c8^★	18:33:32.82	-8:39:17.0	1.10×0.86	89	3.0±0.3	1.9±0.2	19.0±1.3	0.50±0.03	1.5 $_{- 0.5}^{+ 0.9}$ $^{+0.9}_{-0.5}$	0.7 $_{- 0.3}^{+ 0.5}$ $^{+0.5}_{-0.3}$	1.2 $_{- 0.4}^{+ 0.8}$ $^{+0.8}_{-0.4}$	2.2±0.4	1.5 $_{- 0.6}^{+ 0.9}$ $^{+0.9}_{-0.6}$
c9	18:33:32.70	-8:39:14.0	2.79×2.02	128	9.8±0.1	5.3±0.5	16.5±0.7	0.64±0.03	5.9 $_{- 2.1}^{+ 3.1}$ $^{+3.1}_{-2.1}$	0.1 $_{- 0.05}^{+ 0.1}$ $^{+0.1}_{-0.05}$	0.6 $_{- 0.2}^{+ 0.4}$ $^{+0.4}_{-0.2}$	11±1.6	1.9 $_{- 1.1}^{+ 0.5}$ $^{+0.5}_{-1.1}$

F1

c10^★	18:33:33.47	-8:38:46.0	0.74×0.64	90	9.9±0.1	1.0±0.1	17.0^*	0.48^*±0.03	5.8 $_{- 2.1}^{+ 3.1}$ $^{+3.1}_{-2.1}$	17.6 $_{- 7.5}^{+ 13.3}$ $^{+13.3}_{-7.5}$	17.0 $_{- 6.4}^{+ 10.5}$ $^{+10.5}_{-6.4}$	1.3±0.2	0.2 $_{- 0.08}^{+ 0.14}$ $^{+0.14}_{-0.08}$
c11	18:33:33.26	-8:38:54.0	1.17×1.00	100	4.8±0.5	2.2±0.2	10.9±0.4	0.29±0.02	5.3 $_{- 1.9}^{+ 3.0}$ $^{+3.0}_{-1.9}$	1.6 $_{- 0.6}^{+ 1.2}$ $^{+1.2}_{-0.6}$	3.2 $_{- 1.2}^{+ 2.1}$ $^{+2.1}_{-1.2}$	0.5±0.04	0.1 $_{- 0.03}^{+ 0.05}$ $^{+0.05}_{-0.03}$
c12^★	18:33:33.10	-8:38:59.0	1.24×1.21	177	11.3±0.1	2.5±0.3	12.0±0.4	0.46±0.03	10.7 $_{- 3.9}^{+ 6.3}$ $^{+6.3}_{-3.9}$	2.0 $_{- 0.8}^{+ 1.4}$ $^{+1.4}_{-0.8}$	4.7 $_{- 1.8}^{+ 3.0}$ $^{+3.0}_{-1.8}$	2.4±0.5	0.2 $_{- 0.1}^{+ 0.14}$ $^{+0.14}_{-0.1}$
c13	18:33:32.98	-8:39:06.0	1.03×0.98	7	2.8±0.3	2.0±0.2	12.9±0.6	0.59±0.04	2.4 $_{- 0.9}^{+ 1.3}$ $^{+1.3}_{-0.9}$	1.0 $_{- 0.4}^{+ 0.7}$ $^{+0.7}_{-0.4}$	1.8 $_{- 0.7}^{+ 1.1}$ $^{+1.1}_{-0.7}$	3.4±0.36	1.4 $_{- 0.6}^{+ 0.9}$ $^{+0.9}_{-0.6}$
c14	18:33:32.97	-8:39:08.0	1.67×1.49	95	4.4±0.4	3.4±0.3	15.3±0.9	0.45±0.03	2.9 $_{- 1.0}^{+ 1.7}$ $^{+1.7}_{-1.0}$	0.2 $_{- 0.1}^{+ 0.2}$ $^{+0.2}_{-0.1}$	0.7 $_{- 0.3}^{+ 0.5}$ $^{+0.5}_{-0.3}$	3.1±0.6	1.1 $_{- 0.4}^{+ 0.7}$ $^{+0.7}_{-0.4}$
c15^★	18:33:32.95	-8:39:04.0	1.59×1.33	31	16.1±1.6	3.1±0.3	13.2±0.4	0.55±0.03	13.2 $_{- 4.8}^{+ 8.1}$ $^{+8.1}_{-4.8}$	1.3 $_{- 0.5}^{+ 1.0}$ $^{+1.0}_{-0.5}$	3.9 $_{- 1.5}^{+ 2.5}$ $^{+2.5}_{-1.5}$	4.6±0.7	0.4 $_{- 0.14}^{+ 0.22}$ $^{+0.22}_{-0.14}$

F2

c16^★	18:33:32.52	-8:39:09.0	0.91×0.72	97	6.1±0.6	1.4±0.1	23.0±1.6	0.70±0.04	2.4 $_{- 0.8}^{+ 1.3}$ $^{+1.3}_{-0.8}$	2.6 $_{- 1.1}^{+ 2.0}$ $^{+2.0}_{-1.1}$	3.4 $_{- 1.3}^{+ 2.2}$ $^{+2.2}_{-1.3}$	3.5±0.5	1.5 $_{- 0.6}^{+ 0.9}$ $^{+0.9}_{-0.6}$
c17^★	18:33:32.39	-8:39:09.0	0.94×0.69	103	6.0±0.6	1.4±0.1	18.7±1.1	0.40±0.02	3.0 $_{- 1.1}^{+ 1.7}$ $^{+1.7}_{-1.1}$	3.5 $_{- 1.4}^{+ 2.5}$ $^{+2.5}_{-1.4}$	4.5 $_{- 1.7}^{+ 2.9}$ $^{+2.9}_{-1.7}$	0.9±0.1	0.3 $_{- 0.1}^{+ 0.1}$ $^{+0.1}_{-0.1}$
c18^★	18:33:31.56	-8:39:01.0	0.96×0.76	91	1.3±0.1	1.5±0.2	12.2±1.0	0.49±0.03	1.2 $_{- 0.5}^{+ 0.7}$ $^{+0.7}_{-0.5}$	1.0 $_{- 0.4}^{+ 0.7}$ $^{+0.7}_{-0.4}$	1.5 $_{- 0.6}^{+ 0.9}$ $^{+0.9}_{-0.6}$	1.7±0.4	1.4 $_{- 0.5}^{+ 0.4}$ $^{+0.4}_{-0.5}$

Notes. The ★ symbol in Col. 1 indicates the protostellar core, while the name without a symbol pinpoints the prestellar core. a: taken from Cheng et al. (2024). The deconvolved radius, R, is derived from the equation $\sqrt{R_{e f f}^{2} - (1 / 4 \ln 2) B m a j \times B m i n},$ $\sqrt{R^2_{\rm{eff}}-(1/4\ln{2})\rm{Bmaj}\times \rm{Bmin}}$ where $R_{e f f} = \sqrt{F W H M_{m a j} \times F W H M_{m i n}} / 2$ $R_{\rm{eff}}=\sqrt{\rm{FWHM_{\rm{maj}}} \times \rm{FWHM_{\rm{min}}}}/2$ , Bmaj and Bmin represent the synthesized beam sizes. The uncertainty in flux is assumed to be 10%. The * symbol indicates that the median of the parameter for those cores with measurements is taken for that source. Uncertainties for Columns 8-10 and 12 were calculated using Monte Carlo methods. Uncertainties for Columns 5-7 and 11 were calculated through error propagation methods.

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