A new code for low-resolution spectral identification of white dwarf binary candidates

Open Access

Table 1

Properties of test samples.

	WD 1534+503	This Work	PG 1224+309	This Work
	Kilic et al. (2021)		Orosz et al. (1999)
T₁(K)	$8900_{- 500}^{+ 500}$ ${8900_{ - 500}^{ + 500}}$	$9085_{- 725}^{+ 531}$ ${9085_{ - 725}^{ + 531}}$	29 300	$30996_{- 239}^{+ 217}$ ${30996_{ - 239}^{ + 217}}$
log g₁	${7.6}_{- 0.15}^{+ 0.15}$ ${7.6_{ - 0.15}^{ + 0.15}}$	${7.50}_{- 0.019}^{+ 0.024}$ ${7.50_{ - 0.019}^{ + 0.024}}$	7.38	${7.43}_{- 0.014}^{+ 0.009}$ ${7.43_{ - 0.014}^{ + 0.009}}$
M₁ (M_⊙)	${0.392}_{- 0.059}^{+ 0.069}$ ${0.392_{ - 0.059}^{ + 0.069}}$	${0.351}_{- 0.007}^{+ 0.010}$ ${0.351_{ - 0.007}^{ + 0.010}}$	0.4 ± 0.05	${0.41}_{- 0.004}^{+ 0.004}$ ${0.41_{ - 0.004}^{ + 0.004}}$
R₁(10⁻²R_⊙)	1.64	${1.75}_{- 0.02}^{+ 0.02}$ $1.75_{ - 0.02}^{ + 0.02}$	/	${2.00}_{- 0.012}^{+ 0.013}$ $2.00_{ - 0.012}^{ + 0.013}$

T₂(K)	$8500_{- 500}^{+ 500}$ ${8500_{ - 500}^{ + 500}}$	$7987_{- 138}^{+ 134}$ ${7987_{ - 138}^{ + 134}}$	3100( fixed)	${3484.77}_{- 110}^{+ 120}$ ${3484.77_{ - 110}^{ + 120}}$
log g₂	${8.03}_{- 0.1}^{+ 0.18}$ ${8.03_{ - 0.1}^{ + 0.18}}$	${8.50}_{- 0.053}^{+ 0.057}$ ${8.50_{ - 0.053}^{ + 0.057}}$	/	${4.99}_{- 0.017}^{+ 0.004}$ ${4.99_{ - 0.017}^{ + 0.004}}$
[Fe/H]	/	/	/	$- {0.047}_{- 0.007}^{+ 0.11}$ $- 0.047_{ - 0.007}^{ + 0.11}$
M₂(M_⊙)	${0.617}_{- 0.096}^{+ 0.110}$ ${0.617_{ - 0.096}^{ + 0.110}}$	${0.917}_{- 0.032}^{+ 0.035}$ ${0.917_{ - 0.032}^{ + 0.035}}$	0.28 ± 0.05	${0.40}_{- 0.042}^{+ 0.005}$ ${0.40_{ - 0.042}^{ + 0.005}}$
R₂(10⁻²R_⊙)	1.2567	${0.8912}_{- 0.05}^{+ 0.04}$ ${0.8912_{ - 0.05}^{ + 0.04}}$	/	${23.8}_{- 1.64}^{+ 0.25}$ ${23.8_{ - 1.64}^{ + 0.25}}$

Notes. The “WD 1534+503” and “PG 1224+309” columns show the literature fitting results using high-resolution spectra, while our fitting results are listed under the columns “This work”. The label “/” means no value.

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