Relationship between three-dimensional velocity of filament eruptions and CME association

Earth, Planets and Space

Table 2 Filament eruptions used in this study.

Date and time (UT)	CME	Cred.^a	\(V_{\text{r}\_\max}\) (km \(\text {s}^{-1}\))	\(V_{\text{r}\_\text{fin}}\) (km \(\text {s}^{-1}\))	\(V_{\text{pos}}^{\text{b}}\) (km \(\text {s}^{-1}\))	\(V_{\max}\) (km \(\text {s}^{-1}\))	L (Mm)	\(\varTheta ^{\text{c}}\) (°)
2016-05-24 01:00	Yes	3	134	36.4	134	175	137	11.8
2016-06-01 21:00	Yes	3	173	50.8	189	226	151	25.7
2016-06-20 05:30	Yes	3	215	41.3	223	224	63.6	16.6
2016-07-07 07:19	Yes	3	359	189	272	365	35.6	9.67
2016-07-19 05:30	No	3	30.8	− 3.80	27.0	93.1	31.7	53.9
2016-07-20 01:00	Yes	3	122	− 6.40	101	199	99.8	43.9
2016-08-09 23:30	Yes	3	149	51.3	130	155	449	15.0
2016-08-11 22:00	No	2	9.40	2.00	38.2	52.0	153	75.9
2016-08-13 02:30	No	3	34.8	− 18.0	108	234	139	71.3
2016-08-19 02:00	No	2	3.60	2.20	18.1	22.3	341	78.5
2016-09-03 23:53	No	3	15.7	15.0	9.35	52.7	52.5	7.89
2016-09-09 21:51	No	3	51.6	25.8	22.3	154	41.7	35.2
2016-11-04 01:32	Yes	2	38.4	26.8	39.6	44.3	312	29.1
2016-11-05 01:24	Yes	3	121	109	67.0	123	112	7.26
2017-02-10 04:00	No	2	4.90	− 1.40	11.5	14.2	154	64.9
2017-02-19 04:44	Yes	2	161	143	185	218	112	42.2
2017-03-05 01:30	No	3	68.1	40.9	74.4	81.0	42.7	32.7
2017-04-23 04:30	Yes	3	456	436	497	523	113	29.4
2017-04-23 03:05	No	3	18.9	− 25.0	18.1	324	73.9	45.5
2017-04-23 23:08	Yes	3	80.3	36.5	110	112	293	44.4
2017-04-29 23:30	Yes	2	44.2	− 10.6	151	154	271	73.0
2017-09-25 21:24	Yes	2	172	7.70	530	555	164	72.0
2017-12-07 02:15	No	3	2.30	− 43.3	63.8	246	69.8	88.0
2018-04-03 02:30	No	3	82.7	− 2.77	139	183	160	59.0
2018-04-20 05:00	No	2	0.100	− 23.4	0.141	46.7	59.3	72.5
2018-07-16 06:00	No	3	40.0	− 5.00	52.8	75.6	77.4	43.9
2018-07-31 03:00	No	3	3.70	3.30	0.412	13.5	99.6	26.1
2019-02-23 22:30	Yes	3	47.6	28.2	45.1	66.6	285	43.6

^aThe credibility of the association between a CME and a filament eruption. 3 > 2 > 1. Events with a credibility of 1 are excluded from this study.
^bThe apparent velocity of a filament. It is defined as \(\sqrt{V_{x}^2 + V_{y}^2}\), where \(V_{x}\) and \(V_{y}\) are the east–west and south–north velocities projected on the plane of the sky, respectively.
^cThe inclination angle of a filament eruption with respect to the solar normal