EGGR 428

All names: WDJ075959.58+433521.10, Gaia DR3 923023248261420672, SDSS J075959.56+433521.3, TIC 141117787, GEN# +9.80111049, 2MASS J07595959+4335209, SDSS J075959.56+433521.1, G 111-49, CNS5 1977, 07599+4335, WD 0756+43, LSPM J0759+4335, Gaia DR2 923023248261420672, SDSS J075959.57+433521.1, WD 0756+437, NLTT 18746, USNO-B1.0 1335-00193822, PM J07599+4335, Gaia EDR3 923023248261420672, SDSS J075959.56+433521.2, WIRED J075959.56+433521.2, J0759+4335, EGGR 428

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Ferrario et al. 2015 Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 59 59.14 (0.04) 07 59 59.57 07 59 59.16 (0.05) 07 59 59.16 (0.05) 07 59 59.14 07 59 59.58 (0.04) 07 59 59.16 07 59 59.56 08 00 01.18 07 59 59.56
Declination 43 35 23.68 (0.04) 43 35 21.15 43 35 23.60 (0.05) 43 35 23.60 (0.05) 43 35 23.68 43 35 21.10 (0.04) 43 35 23.60 43 35 21.24 43 35 09.60 43 35 21.26
Spectral type DCP DCP DCP DA DC DC DAH DC DAH DC?P6 DAH: DC
Effective temperature [K] 7215.0 (72) 6520.0 (17) 6802.1 (43) 6841.0 6546.0 8500.0 (500) 6910.0 (307) 6633.0 (73) 10080.0 (2) 10080.0 (2)
log(g) [cgs] 8.70 (0.02) 8.41 (0.004) 8.52 (0.02) 8.60 8.48 8.00 (0) 8.55 (0.01) 8.42 (0.3) 9.85 (0.3)
Mass [M] 1.038 (0.01) 0.838 (0.004) 0.976 0.89 0.58 (0.1) 0.934 (0.01)
log(Luminosity) [L] -3.49
Cooling age [Gyr] 4.0400 4.2570 4.2690
log(H/He) -3.2
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 45.54 (0.05) 45.54 (0.05) 45.60 (0.08) 45.60 (0.08) 45.60 (0.08) 45.54 45.54 (0.05) 45.60 (0.08)
Distance [pc] 21.96 (0.02) 21.96 (0.02) 21.93 (0.04) 21.93 (0.04) 21.93 (0.04) 32.50 (6) 21.96 21.96 (0.02) 21.93 (0.04)
Composition He He He
Proper motion (right ascension) [mas/yr] -297.2652046 (0.05) -297.3067624 (0.1) -297.265 (0.05) -297.307 -294.4
Proper motion (declination) [mas/yr] 161.2995185 (0.04) 161.2309661 (0.07) 161.3 (0.04) 161.231 163.6
Variability
Magnetic yes yes yes
Bd [MG] 200 (110)
Infrared excess (disk)
Binarity
B magnitude 16.39
V magnitude
R magnitude 16.00
I magnitude
J magnitude 15.43 (0.01) 15.39 (0.04)
H magnitude 15.23 (0.06) 15.23 (0.06)
K magnitude 15.34 (0.1) 15.34 (0.1)
u magnitude 16.75 (0.006) 16.73 (0.007) 16.75 (0.006) 16.72 (0.007) 16.77 (0.02) 16.76 16.74 (0.02)
g magnitude 16.19 (0.003) 16.19 (0.003) 16.21 (0.004) 16.20 (0.02) 16.19 16.19 (0.02)
r magnitude 16.22 (0.004) 16.22 (0.004) 16.23 (0.004) 16.23 (0.01) 16.22 16.22 (0.01)
i magnitude 16.20 (0.004) 16.20 (0.004) 16.19 (0.004) 16.20 (0.02) 16.19 16.20 (0.02)
z magnitude 16.07 (0.007) 16.07 (0.007) 16.06 (0.007) 16.10 (0.01) 16.09 16.09 (0.02)
G magnitude 16.14 (0.005) 16.15 16.15 16.14 16.14 (0.003) 16.15
BP magnitude 16.30 (0.005) 16.29 16.29
RP magnitude 15.82 (0.003) 15.82 15.82
Pan g magnitude 16.29 (0.005) 16.27 (0.004)
Pan r magnitude 16.27 (0.004) 16.26 (0.003)
Pan i magnitude 16.20 (0.005) 16.19 (0.003)
Pan z magnitude 16.10 (0.006) 16.10 (0.002)
Pan y magnitude 16.12 (0.006) 16.12 (0.007)
E(B-V) 0.000

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.