Searching for new variable white dwarfs: The discovery of the three new pulsating and three new binary systems

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Volume 694 (February 2025)

A&A, 694 (2025) A246

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Table A.3.

The 16 objects presented in this work.

SDSS J	T_eff (K)	log g(cgs)	Mass (M_⊙)	Variability	Reference ^a
001245.60+143956.4	10893 ± 68	7.74 ± 0.07	0.482 ± 0.03	Pulsations	Kleinman et al. (2013)
	$10200_{- 650}^{+ 700}$ $10200^{+700}_{-650}$	7.5 ± 0.4	-		This work, χ_red² = 1.6^c

002602.29-103751.9	9177 ± 30	7.26 ± 0.01	0.273 ± 0.004	NOV	Caron et al. (2023)
	$10000_{- 400}^{+ 480}$ $10000^{+480}_{-400}$	7.9 ± 0.4	-		This work, χ_red² = 4.1

015958.50-180546.8	$7500_{- 290}^{+ 270}$ $7500^{+270}_{-290}$	6.4 ± 0.4	-	NOV	This work, χ_red² = 127^b

040600.99-542751.7	$9300_{- 270}^{+ 300}$ $9300^{+300}_{-270}$	7.0 ± 0.2	-	NOV	This work, χ_red² = 122^b

045116.83+010426.6	$7000_{- 160}^{+ 200}$ $7000^{+200}_{-160}$	4.9 ± 0.5	-	Ellipsoidal	This work, χ_red² = 245^d

083013.72-100356.0	7750 ± 190	5.2 ± 0.4	-	NOV	This work, χ_red² = 84^d

083417.21-652423.2	$7700_{- 170}^{+ 200}$ $7700^{+200}_{-170}$	5.4 ± 0.3	-	Ellipsoidal	This work, χ_red² = 354^d

090559.60+084324.9	10070.0 ± 38	8.18 ± 0.04	0.704 ± 0.03	Pulsations	Kleinman et al. (2013)
	$10100_{- 560}^{+ 630}$ $10100^{+630}_{-560}$	8.2 ± 0.4	-		This work, χ_red² = 1.9^c

090901.01-454637.0	$9700_{- 330}^{+ 430}$ $9700^{+430}_{-330}$	7.3 ± 0.2	-	NOV	This work, χ_red² = 18

112521.26-023433.4	9615 ±149	8.08 ±0.2	0.644 ±0.1	NOV	Kleinman et al. (2013)
	$8650_{- 900}^{+ 940}$ $8650^{+940}_{-900}$	8.5 ± 0.5	-		This work, χ_red² = 1.5^c

134619.11-135026.7	9102 ± 39	7.02 ± 0.009	0.216 ± 0.003	NOV	Caron et al. (2023)
	$10100_{- 380}^{+ 210}$ $10100^{+210}_{-380}$	7.1 ± 0.2	-		This work, χ_red² = 136^b

151626.39-265836.9	$10100_{- 760}^{+ 880}$ $10100^{+880}_{-760}$	7.9 ± 0.4	-	NOV	This work, χ_red² = 1.7^c

161004.27+063330.6	9454±85	8.02 ±0.1	0.61 ±0.07	NOV	Kleinman et al. (2013)
	8400 ± 840	8.5 ± 0.5	-		This work, χ_red² = 2.2^c

183245.52+141311.2	8860 ± 100	5.9 ± 0.1	-	Reflection effect	This work, χ_red² = 1359^b

183702.03-674141.1	$7750_{- 170}^{+ 190}$ $7750^{+190}_{-170}$	5.2 ± 0.4	-	NOV	This work, χ_red² = 148^d

212935.23+001332.3	8860 ± 30	7.16 ± 0.006	0.244 ± 0.002	Pulsations	Caron et al. (2023)
	$9700_{- 350}^{+ 480}$ $9700^{+480}_{-350}$	6.8 ± 0.2	-		This work, χ_red² = 232^b

Notes: Column 1 provides the SDSS J identifier. The effective temperature, surface gravity, and stellar mass determinations are listed in columns 2, 3, and 4, respectively. Column 5 shows the type of variability seen in each object’s light curve. Column 6 contains the reference for the atmospheric parameters, along with the reduced χ² for the parameters obtained in this work.

References for T_eff (K), log g(cgs) and Mass (M_⊙) fit values.

Possible extra light.

MCMC fit.

Metals in the atmosphere.

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