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Table 3

Results from survival analysis correlation tests for the luminosity of the [Ne II] line.

All infrared classes
N° Upper limits Probability and correlation parameter
Variable N° Points Total [NeII] Cox Kendall Spearman
M∗ 53 38 38 0.92 (0.010) 0.62 (0.49) 0.55 (0.084)
L∗ 57 42 42 0.56 (0.34) 0.82 (0.23) 0.93 (0.012)
L X 47 35 33 ... 0.09 (1.7) 0.18 (0.18)
LIR 64 46 46 0.04 (4.4) 0.01 (2.4) 0.01 (0.31)
EW(Hα) 56 42 42 0.04 (4.3) 0.03 (2.1) 0.01 (0.3)
Ṁacc 47 36 32 ... 0.62 (0.50) 0.37 (0.13)
Ṁacc − high 27 21 20 ... 0.13 (1.5) 0.04 (0.39)
Ṁacc − low 19 15 12 ... 0.20 (–1.3) 0.55 (–0.14)
L [OI]  27 21 16 ... 0.02 (2.2) 0.02 (0.46)
LX L [OI]  22 17 12 ... 0.06 (1.9) 0.03 (0.46)
LX Ṁwind 36 28 23 ... 0.67 (0.42) 1.00 (0.00)
L [FeII]  64 61 46 ... 0.09 (1.7) 0.10 (0.21)
Class II
M∗ 40 26 26 0.10 (2.6) 0.46 (–0.74) 0.27 (–0.17)
L∗ 40 26 26 0.94 (0.005) 0.85 (0.19) 0.88 (0.02)
LX 35 24 22 ... 0.04 (2.0) 0.05 (0.34)
LIR 44 28 28 0.03 (4.7) 0.004 (2.8) 0.01 (0.39)
EW(Hα) 41 28 28 0.26 (1.3) 0.29 (1.1) 0.23 (0.19)
Ṁacc 36 26 24 ... 0.90 (0.12) 0.99 (–0.002)
Ṁacc − high 19 14 13 ... 0.05 (1.9) 0.04 (0.49)
Ṁacc − low 17 12 10 ... 0.02 (–2.2) 0.05 (-0.49)
L [OI]  24 18 18 ... 0.02(2.3) 0.03(0.45)
LX L [OI]  19 14 13 ... 0.10 (1.9) 0.09 (0.44)
LX Ṁwind 30 22 19 ... 0.61 (–0.51) 0.63 (–0.90)
L [FeII]  44 42 28 ... 0.62 (0.50) 0.41 (0.12)

Notes. The first column shows the variable for which the correlation is tested, the second column shows the total number of points considered, the third column shows the total number of upper limits used (dependent and independent variable), the fourth column shows the number of upper limits for the luminosity of the [Ne II] line (dependent variable), and the probabilities (P) of a correlation achieved by chance are presented in Cols. 5–7, where P ≤ 5% are shown in bold fonts. The value of the correlation parameters are shown in parentheses. We have defined Ṁacc − high and Ṁacc − low as follows: Ṁacc − high ≥ 10-8 M⊙ yr-1 and Ṁacc − low < 10-8 M⊙ yr-1. The Cox method cannot be used when upper limits are present in both of the tested variables. See text for more details.

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