V* V439 Vir

All names: Gaia DR3 3690323316193465344, Gaia EDR3 3690323316193465344, SDSS J130110.51+010739.8, USNO-B1.0 0911-00217473, SDSS J130110.51+010739.7, SDSS J130110.50+010739.8, WD 1258+013, WIRED J130110.51+010739.9, 2MASS J13011051+0107398, LAMOST J130110.50+010739.8, 1301+0107, GALEX J130110.5+010740, HE 1258+0123, SDSS J130110.51+010739.9, V* V439 Vir, LAMOST J130110.51+010739.9, TIC 411249703, HE1258+0123, Gaia DR2 3690323316193465344, WDJ130110.52+010739.93

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Guo et al. 2015 Gianninas et al. 2011 Tremblay et al. 2011 Koester et al. 2009 Castanheira & Kepler 2009 Kepler et al. 2005 Bergeron et al. 2004 Harris et al. 2003 Koester et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Research Corporation Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 13 01 10.54 (0.05) 13 01 10.51 13 01 10.54 (0.07) 13 00 59.20 13 01 10.54 13 01 10.52 (0.05) 13 01 10.54 13 01 10.51 13 01 10.39 13 01 10.51 13 01 10.51
Declination 01 07 40.03 (0.04) 01 07 39.89 01 07 40.02 (0.07) 00 57 12.00 01 07 40.03 01 07 39.93 (0.04) 01 07 40.02 01 07 39.84 01 07 39.72 01 07 39.92 01 07 39.94
Spectral type DA DA DA DA4.5 DA DA DA4.3 DA DAV DA DA DA DA
Effective temperature [K] 11088.0 11581.0 14958.0 (421) 11740.0 (176) 11400.0 (50) 11258.0 (22) 11420.0 11420.0 11420.0 11161.0 (29) 11017.0 (118) 11410.0 11099.0 (34) 11050.0 (34) 11057.0 (29)
log(g) [cgs] 7.94 7.92 7.53 (0.1) 8.11 (0.05) 8.15 (0.02) 7.95 (0.01) 8.02 8.02 8.02 7.92 (0.02) 7.91 (0.01) 8.04 8.11 (0.02) 8.15 (0.02) 8.15 (0.02)
Mass [M] 0.567 0.537 0.39 (0.03) 0.67 (0.03) 0.7 (0.01) 0.56 0.553 (0.01) 0.688 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.4244 0.3769 0.5370
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 12.07 (0.06) 12.12 (0.09) 12.07 12.07 (0.06) 12.12 (0.09)
Distance [pc] 82.85 (0.4) 82.49 (0.6) 73.00 82.85 82.85 (0.4) 82.49 (0.6)
Composition H H
Proper motion (right ascension) [mas/yr] 27.58072378 (0.07) 27.84320012 (0.2) 27.581 (0.07) 27.843 31.7 34.0
Proper motion (declination) [mas/yr] 6.277547774 (0.08) 5.96023558 (0.1) 6.278 (0.08) 5.96 3.6 6.0
Variability VAR VAR VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.42 16.50
V magnitude 16.30 16.30 16.30 16.20 16.26 16.26
R magnitude 16.50
I magnitude
J magnitude 16.29 (0.1)
H magnitude 16.38 (0.02)
K magnitude 16.39 (0.04)
u magnitude 16.69 (0.006) 16.70 16.69 (0.006) 16.73 (0.007) 16.69 (0.01) 16.70 16.70 (0.01) 16.70 (0.01)
g magnitude 16.28 (0.004) 16.30 16.28 (0.004) 16.23 (0.004) 16.30 (0.01) 16.30 16.31 (0.02) 16.30 (0.02)
r magnitude 16.45 (0.004) 16.44 16.45 (0.004) 16.46 (0.004) 16.46 (0.02) 16.44 16.47 (0.02) 16.44 (0.02)
i magnitude 16.60 (0.004) 16.61 16.60 (0.004) 16.80 (0.005) 16.59 (0.01) 16.61 16.61 (0.01) 16.61 (0.01)
z magnitude 16.80 (0.01) 16.79 16.80 (0.01) 16.81 (0.01) 16.78 (0.02) 16.79 16.82 (0.02) 16.79 (0.01)
G magnitude 16.34 (0.008) 16.36 16.34 16.34 (0.003) 16.36
BP magnitude 16.37 (0.008) 16.37 16.37
RP magnitude 16.32 (0.007) 16.33 16.33
Pan g magnitude 16.33 (0.005)
Pan r magnitude 16.41 (0.01)
Pan i magnitude 16.66 (0.003)
Pan z magnitude 16.85 (0.01)
Pan y magnitude 17.00 (0.005)
E(B-V) 0.003
Period #1 [s] 439.2 628.0 439.2
Amplitude #1 [mma] 9.8 15.2
Period #2 [s] 528.5 882.0 528.5
Amplitude #2 [mma] 9.3 17.6
Period #3 [s] 628.0 744.6
Amplitude #3 [mma] 15.2
Period #4 [s] 744.6 1092.1
Amplitude #4 [mma] 22.9
Period #5 [s] 881.5
Amplitude #5 [mma] 17.6
Period #6 [s] 1092.1
Amplitude #6 [mma] 14.1

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.