First detection of acceleration and deceleration in protostellar jets? - Time variability in the Chamaeleontis II outflows

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Table B.2:

Proper Motions in HH 54 - H $\alpha$ and [S II] - parameters derived from the linear fit.
Knot ID	$\alpha$ (2000.0)			$\delta$ (2000.0)			PM	PA	$v_{\rm tan}$	Filter
	( $^{\rm h}$ $^{\rm m}$ $^{\rm s}$ )			( $\hbox{$^\circ$ }$ $\hbox{$^\prime$ }$ $\hbox{$^{\prime\prime}$ }$ )			( $\hbox{$^{\prime\prime}$ }$ yr^-1)	( $\hbox{$^\circ$ }$ )	(km s^-1)
HH 54 A1	12	55	49.4	-76	56	30	0.036 $\pm$ 0.004	70 $\pm$ 6	31 $\pm$ 3	[S II]
	12	55	49.4	-76	56	30	0.035 $\pm$ 0.002	85 $\pm$ 2	29 $\pm$ 2	H $\alpha$
HH 54 A2	12	55	50.2	-76	56	30	0.036 $\pm$ 0.004	81 $\pm$ 6	30 $\pm$ 3	[S II]
	12	55	50.2	-76	56	30	0.034 $\pm$ 0.002	73 $\pm$ 3	29 $\pm$ 2	H $\alpha$
HH 54 A3	12	55	48.7	-76	56	33	0.013 $\pm$ 0.004	166 $\pm$ 17	11 $\pm$ 3	[S II]
	12	55	48.7	-76	56	33	0.015 $\pm$ 0.002	121 $\pm$ 6	13 $\pm$ 3	H $\alpha$
HH 54 A4	12	55	47.7	-76	56	33	0.030 $\pm$ 0.004	225 $\pm$ 7	25 $\pm$ 3	[S II]
	12	55	47.8	-76	56	34	-	-	-	H $\alpha$
HH 54 A5	12	55	47.4	-76	56	30	0.066 $\pm$ 0.006	125 $\pm$ 6	56 $\pm$ 5	[S II]
	12	55	47.4	-76	56	31	-	-	-	H $\alpha$
HH 54 A6	12	55	48.1	-76	56	31	0.031 $\pm$ 0.007	53 $\pm$ 13	27 $\pm$ 6	[S II]
	12	55	48.1	-76	56	31	0.025 $\pm$ 0.005	40 $\pm$ 11	21 $\pm$ 4	H $\alpha$
HH 54 A7	12	55	49.4	-76	56	32	0.017 $\pm$ 0.005	88 $\pm$ 27	14 $\pm$ 4	[S II]
	12	55	49.4	-76	56	32	0.016 $\pm$ 0.002	23 $\pm$ 6	14 $\pm$ 1	H $\alpha$
HH 54 A8	12	55	48.7	-76	56	29	0.039 $\pm$ 0.009	28 $\pm$ 20	33 $\pm$ 8	[S II]
	12	55	48.7	-76	56	29	0.034 $\pm$ 0.002	66 $\pm$ 3	29 $\pm$ 2	H $\alpha$
HH 54 B	12	55	50.9	-76	56	21	0.008 $\pm$ 0.004^b	110 $\pm$ 30	6 $\pm$ 3^b	[S II]
	12	55	50.9	-76	56	21	-	-	-	H $\alpha$
HH 54 B1	12	55	50.6	-76	56	19	0.010 $\pm$ 0.005^b	282 $\pm$ 32	8 $\pm$ 4^b	[S II]
	12	55	50.6	-76	56	19	-	-	-	H $\alpha$
HH 54 B2	12	55	49.8	-76	56	21	-	-	-	[S II]
	12	55	49.8	-76	56	22	0.017 $\pm$ 0.002	313 $\pm$ 7	15 $\pm$ 2	H $\alpha$
HH 54 B3	12	55	50.5	-76	56	24	-	-	-	H $\alpha$
HH 54 C1	12	55	51.3	-76	56	05	0.032 $\pm$ 0.004	73 $\pm$ 8	27 $\pm$ 3	[S II]
	12	55	51.3	-76	56	05	0.017 $\pm$ 0.002	67 $\pm$ 5	14 $\pm$ 1	H $\alpha$
HH 54 C2	12	55	50.4	-76	56	03	0.041 $\pm$ 0.004	42 $\pm$ 5	34 $\pm$ 3	[S II]
	12	55	50.4	-76	56	03	0.017 $\pm$ 0.002	70 $\pm$ 5	14 $\pm$ 1	H $\alpha$
HH 54 C3	12	55	51.0	-76	56	02	0.017 $\pm$ 0.006^b	239 $\pm$ 19	14 $\pm$ 5^b	[S II]
	12	55	51.0	-76	56	02	0.016 $\pm$ 0.002^a	267 $\pm$ 6	13 $\pm$ 2^a	H $\alpha$
HH 54 E	12	55	53.7	-76	56	22	0.017 $\pm$ 0.005	35 $\pm$ 15	14 $\pm$ 4	[S II]
	12	55	53.7	-76	56	22	0.018 $\pm$ 0.002	16 $\pm$ 6	15 $\pm$ 2	H $\alpha$
HH 54 F	12	55	49.0	-76	56	19	0.018 $\pm$ 0.003	125 $\pm$ 11	15 $\pm$ 3	[S II]
	12	55	49.0	-76	56	19	0.013 $\pm$ 0.002	129 $\pm$ 7	11 $\pm$ 2	H $\alpha$
HH 54 F1	12	55	48.4	-76	56	17	0.015 $\pm$ 0.002^a	251 $\pm$ 9	13 $\pm$ 2^a	H $\alpha$
HH 54 G	12	55	45.4	-76	56	13	0.048 $\pm$ 0.004^a	78 $\pm$ 4	41 $\pm$ 3^a	[S II]
	12	55	45.4	-76	56	13	0.035 $\pm$ 0.001^a	71 $\pm$ 3	29 $\pm$ 1^a	H $\alpha$
HH 54 G0	12	55	44.8	-76	56	13	0.036 $\pm$ 0.005^a	36 $\pm$ 7	31 $\pm$ 4^a	[S II]
	12	55	44.8	-76	56	13	0.055 $\pm$ 0.003^a	52 $\pm$ 3	46 $\pm$ 3^a	H $\alpha$
HH 54 G1	12	55	47.3	-76	56	09	0.096 $\pm$ 0.006^a	81 $\pm$ 3	81 $\pm$ 5^a	[S II]
	12	55	47.3	-76	56	09	0.073 $\pm$ 0.006^a	72 $\pm$ 6	62 $\pm$ 5^a	H $\alpha$
HH 54 G2	12	55	47.6	-76	56	05	0.017 $\pm$ 0.005^b	58 $\pm$ 17	14 $\pm$ 5^b	[S II]
	12	55	47.8	-76	56	05	0.079 $\pm$ 0.003^a	68 $\pm$ 2	67 $\pm$ 2^a	H $\alpha$
HH 54 G3	12	55	49.1	-76	56	06	0.079 $\pm$ 0.006^a	63 $\pm$ 4	67 $\pm$ 5^a	[S II]
	12	55	49.3	-76	56	06	0.080 $\pm$ 0.002^a	66 $\pm$ 2	68 $\pm$ 2^a	H $\alpha$
HH 54 H1	12	55	52.8	-76	56	05	0.026 $\pm$ 0.004	36 $\pm$ 8	22 $\pm$ 3	[S II]
	12	55	52.8	-76	56	05	0.033 $\pm$ 0.002^a	53 $\pm$ 4	28 $\pm$ 2^a	H $\alpha$
HH 54 H2	12	55	53.1	-76	56	07	0.035 $\pm$ 0.004	23 $\pm$ 6	29 $\pm$ 3	[S II]
	12	55	53.1	-76	56	07	0.051 $\pm$ 0.002^a	38 $\pm$ 3	43 $\pm$ 2^a	H $\alpha$
HH 54 H3	12	55	52.4	-76	56	10	0.025 $\pm$ 0.003	187 $\pm$ 9	21 $\pm$ 3	[S II]
	12	55	52.6	-76	56	11	0.043 $\pm$ 0.003^a	127 $\pm$ 4	37 $\pm$ 3^a	H $\alpha$
HH 54 I	12	55	54.4	-76	56	08	0.031 $\pm$ 0.006	48 $\pm$ 11	26 $\pm$ 5	[S II]
	12	55	54.5	-76	56	08	0.031 $\pm$ 0.002	41 $\pm$ 4	26 $\pm$ 2	H $\alpha$
HH 54 J	12	55	52.3	-76	56	17	0.012 $\pm$ 0.005^b	45 $\pm$ 25	10 $\pm$ 4^b	[S II]
	12	55	52.3	-76	56	18	-	-	-	[S II],H $\alpha$
HH 54 J1	12	55	51.4	-76	56	16	-	-	-	[S II],H $\alpha$
HH 54 K	12	55	53.8	-76	56	25	0.017 $\pm$ 0.003	2 $\pm$ 14	14 $\pm$ 3	[S II]
	12	55	53.8	-76	56	25	0.021 $\pm$ 0.003	329 $\pm$ 11	18 $\pm$ 3	H $\alpha$
HH 54 K1	12	55	54.1	-76	56	27	0.042 $\pm$ 0.004	207 $\pm$ 5	36 $\pm$ 3	[S II]
	12	55	54.2	-76	56	27	0.048 $\pm$ 0.005	233 $\pm$ 7	41 $\pm$ 4	H $\alpha$
HH 54 K2	12	55	53.3	-76	56	24	0.022 $\pm$ 0.005	45 $\pm$ 14	18 $\pm$ 4	[S II]
	12	55	53.4	-76	56	24	0.016 $\pm$ 0.002	345 $\pm$ 10	13 $\pm$ 1	H $\alpha$
HH 54 M	12	55	51.2	-76	56	08	0.026 $\pm$ 0.004	76 $\pm$ 9	22 $\pm$ 4	[S II]
	12	55	51.0	-76	56	09	0.019 $\pm$ 0.002^a	81 $\pm$ 7	16 $\pm$ 2^a	H $\alpha$
HH 54 M1	12	55	50.2	-76	56	11	-	-	-	[S II],H $\alpha$
HH 54 N	12	55	48.8	-76	56	23	0.029 $\pm$ 0.005	312 $\pm$ 9	25 $\pm$ 4	[S II]
	12	55	49.0	-76	56	23	0.021 $\pm$ 0.002	326 $\pm$ 6	22 $\pm$ 2	H $\alpha$
HH 54 O	12	55	47.4	-76	56	22	0.013 $\pm$ 0.004	328 $\pm$ 16	11 $\pm$ 3	[S II]
	12	55	47.3	-76	56	22	0.051 $\pm$ 0.005	58 $\pm$ 6	43 $\pm$ 4	H $\alpha$
HH 54 O1	12	55	46.7	-76	56	24	0.046 $\pm$ 0.004	15 $\pm$ 7	39 $\pm$ 3	[S II]
	12	55	46.6	-76	56	24	0.037 $\pm$ 0.003^a	47 $\pm$ 5	31 $\pm$ 3^a	H $\alpha$
HH 54 P	12	55	45.2	-76	56	34	-	-	-	[S II],H $\alpha$
HH 54 Q1	12	55	47.2	-76	56	43	0.044 $\pm$ 0.006	23 $\pm$ 8	37 $\pm$ 5	[S II]
	12	55	52.5	-76	56	43	0.041 $\pm$ 0.002^a	37 $\pm$ 3	34 $\pm$ 2^a	H $\alpha$
HH 54 Q2	12	55	51.8	-76	56	40	0.046 $\pm$ 0.013	34 $\pm$ 17	39 $\pm$ 11	[S II]
	12	55	51.8	-76	56	40	0.043 $\pm$ 0.003	79 $\pm$ 4	37 $\pm$ 3	H $\alpha$
HH 54 Q3	12	55	51.3	-76	56	36	-	-	-	[S II]
	12	55	51.3	-76	56	36	0.043 $\pm$ 0.003^a	80 $\pm$ 4	37 $\pm$ 2^a	H $\alpha$
HH 54 R	12	55	56.3	-76	57	20	-	-	-	[S II],H $\alpha$
HH 54 X0	12	55	40.3	-76	57	50	0.022 $\pm$ 0.003	325 $\pm$ 6	19 $\pm$ 2	H $\alpha$
HH 54 X1 A	12	55	44.6	-76	57	35	0.035 $\pm$ 0.003^a	101 $\pm$ 4	29 $\pm$ 2^a	H $\alpha$
HH 54 X1 B	12	55	42.8	-76	57	36	0.013 $\pm$ 0.002	313 $\pm$ 11	11 $\pm$ 2	[S II]
	12	55	42.8	-76	57	37	0.012 $\pm$ 0.003	275 $\pm$ 8	10 $\pm$ 3	H $\alpha$
HH 54 X1 C	12	55	41.6	-76	57	35	0.036 $\pm$ 0.002^a	340 $\pm$ 4	30 $\pm$ 2^a	H $\alpha$
HH 54 X1 D	12	55	43.8	-76	57	27	0.037 $\pm$ 0.004	33 $\pm$ 7	31 $\pm$ 4	H $\alpha$
HH 54 X2 A	12	55	40.7	-76	57	42	0.018 $\pm$ 0.006	204 $\pm$ 23	15 $\pm$ 5	[S II]
	12	55	40.9	-76	57	39	0.021 $\pm$ 0.002	55 $\pm$ 6	18 $\pm$ 2	H $\alpha$
HH 54 X2 B	12	55	41.3	-76	57	39	0.013 $\pm$ 0.002	314 $\pm$ 11	11 $\pm$ 2	[S II]
	12	55	41.0	-76	57	41	0.036 $\pm$ 0.002	253 $\pm$ 5	30 $\pm$ 2	H $\alpha$
HH 54 X3	12	55	39.8	-76	57	36	-	-	-	[S II]
	12	55	39.8	-76	57	36	0.021 $\pm$ 0.003	256 $\pm$ 13	18 $\pm$ 4	H $\alpha$
HH 54 X4 A	12	55	40.5	-76	57	28	0.068 $\pm$ 0.007	45 $\pm$ 6	57 $\pm$ 7	H $\alpha$
HH 54 X4 B	12	55	42.0	-76	57	22	0.043 $\pm$ 0.003	22 $\pm$ 5	37 $\pm$ 3	H $\alpha$
HH 54 X4 C	12	55	41.8	-76	57	25	0.067 $\pm$ 0.006	49 $\pm$ 5	57 $\pm$ 5	[S II]
	12	55	41.8	-76	57	25	0.047 $\pm$ 0.003	44 $\pm$ 3	39 $\pm$ 2	H $\alpha$
HH 54 Y1	12	55	44.9	-76	57	11	0.033 $\pm$ 0.005	33 $\pm$ 8	28 $\pm$ 4	[S II]
	12	55	44.9	-76	57	11	0.018 $\pm$ 0.002	356 $\pm$ 5	16 $\pm$ 2	H $\alpha$
HH 54 Y2	12	55	44.7	-76	57	06	0.038 $\pm$ 0.005	18 $\pm$ 9	32 $\pm$ 4	[S II]
	12	55	44.6	-76	57	07	0.037 $\pm$ 0.002^a	26 $\pm$ 3	31 $\pm$ 2^a	H $\alpha$
HH 54 Y3	12	55	43.2	-76	57	13	0.042 $\pm$ 0.004	63 $\pm$ 5	36 $\pm$ 4	[S II]
	12	55	43.2	-76	57	13	0.068 $\pm$ 0.003^a	43 $\pm$ 3	58 $\pm$ 3	H $\alpha$
HH 54 Y4	12	55	45.0	-76	57	00	0.043 $\pm$ 0.008	62 $\pm$ 17	36 $\pm$ 7	[S II]
	12	55	45.0	-76	57	00	0.067 $\pm$ 0.008	41 $\pm$ 7	57 $\pm$ 7	H $\alpha$
HH 54 Y5	12	55	49.1	-76	57	04	0.013 $\pm$ 0.004^b	14 $\pm$ 19	11 $\pm$ 3^b	[S II]
	12	55	49.0	-76	57	05	0.022 $\pm$ 0.008^b	90 $\pm$ 20	19 $\pm$ 7^b	H $\alpha$
HH 54 Y6	12	55	45.5	-76	56	53	0.059 $\pm$ 0.006	69 $\pm$ 6	50 $\pm$ 5	[S II]
	12	55	45.5	-76	56	53	0.059 $\pm$ 0.010	16 $\pm$ 18	50 $\pm$ 9	H $\alpha$
HH 54 Y7	12	55	46.1	-76	57	00	0.072 $\pm$ 0.017	322 $\pm$ 15	61 $\pm$ 14	H $\alpha$
HH 54 Y8	12	55	45.3	-76	57	09	0.026 $\pm$ 0.010^b	22 $\pm$ 11	22 $\pm$ 8^b	H $\alpha$
HH 54 Z	12	55	47.2	-76	56	43	0.037 $\pm$ 0.004	344 $\pm$ 7	31 $\pm$ 3	[S II]
	12	55	47.2	-76	56	45	0.010 $\pm$ 0.002	325 $\pm$ 13	8 $\pm$ 2	H $\alpha$
HH 54 Z1	12	55	46.1	-76	56	45	0.013 $\pm$ 0.002	292 $\pm$ 9	11 $\pm$ 2	H $\alpha$

Notes: ^a mean value, variable in velocity, see text and Table C.1; ^b below 3 $\sigma$ .

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