Star formation in Chamaeleon I and III: a molecular line study of the starless core population

Free Access

Table 6

“Infall” and opposite signatures.

Source	Line_thick^a	Line_thin^a	T_blue/T_red^b	δV ^c

“Infall” signature – Chamaeleon I
Cha1-C1	CS 2–1	C³⁴S 2–1	2.09 ± 0.09	−0.41 ± 0.10
Cha1-C2	CS 2–1	C³⁴S 2–1	1.99 ± 0.13	−0.29 ± 0.12
Cha1-C3	CS 2–1	C³⁴S 2–1	2.59 ± 0.23	−0.41 ± 0.28
Cha1-C8	CS 2–1	N₂H⁺ 1–0	2.10 ± 0.35	−0.63 ± 0.53
Cha1-C9	CS 2–1	C³⁴S 2–1	1.58 ± 0.26	−0.28 ± 0.26
Cha1-C10	CS 2–1	C³⁴S 2–1	1.39 ± 0.10	−0.25 ± 0.17
Cha1-C11	HNC 1–0	N₂H⁺ 1–0	1.65 ± 0.11	−0.80 ± 0.58
Cha1-C14	CS 2–1	CH₃OH^d	1.97 ± 0.28	−0.50 ± 0.39
Cha1-C18	HNC 1–0	HC₃N 10–9	1.67 ± 0.28	−0.91 ± 0.60
Cha1-C19	HNC 1–0	C³⁴S 2–1	2.15 ± 0.10	−0.79 ± 0.19
Cha1-C21	CS 2–1	C³⁴S 2–1	1.25 ± 0.09	−0.64 ± 0.35
Cha1-C27	¹³CO 2–1	C¹⁸O 2–1	3.05 ± 0.08	−0.27 ± 0.05
Cha1-C29	CS 2–1	C³⁴S 2–1	2.61 ± 0.29	−0.36 ± 0.19
Cha1-C33	HNC 1–0	C³⁴S 2–1	1.90 ± 0.08	−0.78 ± 0.31
Cha1-C34	CS 2–1	C³⁴S 2–1	2.05 ± 0.18	−0.42 ± 0.22
Cha1-C35	HNC 1–0	C³⁴S 2–1	4.47 ± 0.44	−0.62 ± 0.27
Cha1-C41	CS 2–1	C³⁴S 2–1	1.52 ± 0.13	−0.30 ± 0.21
Cha1-C46	¹³CO 2–1	C¹⁸O 2–1	1.36 ± 0.13	−0.36 ± 0.19
Opposite Signature – Chamaeleon I
Cha1-C6	¹³CO 2–1	C¹⁸O 2–1	0.85 ± 0.04	0.73 ± 0.12
Cha1-C12	¹³CO 2–1	C¹⁸O 2–1	0.72 ± 0.05	0.43 ± 0.06
Cha1-C17	CS 2–1	C³⁴S 2–1	0.84 ± 0.07	0.29 ± 0.16
Cha1-C21	HNC 1–0	C³⁴S 2–1	0.68 ± 0.06	1.33 ± 0.62
Cha1-C22	¹³CO 2–1	CH₃OH^d	0.76 ± 0.06	0.82 ± 0.39
Cha1-C24	¹³CO 2–1	C¹⁸O 2–1	0.78 ± 0.06	1.46 ± 0.27
Cha1-C30	CS 2–1	CH₃OH^d	0.33 ± 0.10	0.93 ± 0.43
Cha1-C31	CS 2–1	CH₃OH^d	0.58 ± 0.17	0.69 ± 0.40
“Infall” signature – Chamaeleon III
Cha3-C1	HNC 1–0	CH₃OH^d	2.00 ± 0.25	−0.40 ± 0.16
Cha3-C9	¹³CO 2–1	C¹⁸O 2–1	1.38 ± 0.09	−0.31 ± 0.12
Cha3-C10	¹³CO 2–1	C¹⁸O 2–1	1.33 ± 0.09	−0.34 ± 0.08
Cha3-C13	HNC 1–0	C¹⁸O 2–1	2.21 ± 0.75	−0.55 ± 0.28
Cha3-C20	¹³CO 2–1	C¹⁸O 2–1	1.22 ± 0.06	−0.34 ± 0.10

Notes.

^(a)

Optically thick and thin transitions shown in Figs. 4−6.

^(b)

Ratio of the blue and red peak temperatures of the optically thick spectra and 1σ uncertainty.

^(c)

Dimensionless parameter defined in Eq. (7). The uncertainty corresponds to the 3σ error.

^(d)

CH₃OH 2₀ − 1₀ A⁺.

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.