Analysis of high-resolution FEROS spectroscopy for a sample of variable B-type stars assembled from TESS photometry

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Volume 665 (September 2022)

A&A, 665 (2022) A36

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Table 4

Multiple linear regression results.

	All variables			Only significant variables
Predictors	Estimate	p-value	R²	Estimate	p-value	R²
Dependent variable log L
Intercept	0.42(0.06)	(…)	.	0.40(0.04)	(…)
T_eff	1.06(0.07)	<0.001	.	1.05(0.07)	<0.001
log g	−0.44(0.06)	<0.001	.	−0.44(0.06)	<0.001	0.751
v sin i	0.07(0.05)	0.117	.
ξ	−0.12(0.08)	0.104	.
[M/H]	−0.06(0.07)	0.407	0.761
Dependent variable T_eff
Intercept	−0.15(0.06)	(…)	.	−0.18(0.04)	(… )
log L	0.66(0.05)	<0.001	.	0.66(0.05)	<0.001
log g	0.27(0.05)	<0.001	.	0.28(0.05)	<0.001	0.691
v sin i	−0.08(0.04)	0.039	.
ξ	0.09(0.06)	0.146	.
[M/H]	−0.01(0.06)	0.857	0.707
Dependent variable log g
Intercept	0.77(0.07)	(…)	.	0.85(0.05)	(… )
logL	−0.87(0.12)	<0.001	.	−0.89(0.11)	<0.001
T_eff	0.87(0.16)	<0.001	.	0.87(0.16)	<0.001
[M/H]	−0.13(0.10)	0.207	.	−0.20(0.08)	0.015	0.445
v sin i	0.08(0.07)	0.254	.
ξ	0.06(0.11)	0.549	0.461
Dependent variable ξ
Intercept	0.24(0.10)	(…)	.	0.29(0.06)	(… )
log L	−0.23(0.14)	0.104	.	−0.29(0.11)	0.01
T_eff	0.26(0.18)	0.146	.	0.32(0.16)	0.043
v sin i	0.25(0.06)	<0.001	.	0.26(0.06)	<0.001
[M/H]	−0.41(0.09)	<0.001	.	−0.41(0.09)	<0.001	0.463
log g	0.06(0.10)	0.549	0.465

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