SDSS J094003.14+084049.1

All names: GALEX J094003.2+084049, WD 0937+089, SDSS J094003.14+084049.1, Gaia EDR3 588293662082044032, SDSS J094003.14+084049.20, Gaia DR3 588293662082044032, Gaia DR2 588293662082044032, SDSS J094003.14+084049.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 40 03.13 (0.4) 09 40 03.14 09 40 03.13 (1) 09 40 03.14 (0.4) 09 40 03.14 09 40 02.71 09 40 03.14
Declination 08 40 49.36 (0.4) 08 40 49.12 08 40 49.36 (0.8) 08 40 49.11 (0.4) 08 40 49.18 08 40 46.20 08 40 49.17
Spectral type DBA DBA DBA DBA DBA DB+MS
Effective temperature [K] 18160.0 15804.0 20104.0 (882) 21884.0 (1283)
log(g) [cgs] 8.13 6.56 8.19 (0.1) 8.28 (0.1)
Mass [M] 0.674 0.171
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He) -4.183
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] 1.39 (0.4) -0.78 (1) 1.39 (0.4)
Distance [pc] 717.29 (200) 717.31 (200)
Composition He
Proper motion (right ascension) [mas/yr] -13.60309607 (0.4) -13.44565511 (1) -13.603 (0.4) -7.9
Proper motion (declination) [mas/yr] 15.82530486 (0.4) 16.34020752 (1) 15.825 (0.4) 14.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.19 (0.03) 19.18 (0.03) 19.18 (0.03) 19.18 19.20 (0.03)
g magnitude 19.22 (0.01) 19.17 (0.01) 19.19 (0.03) 19.19 19.21 (0.03)
r magnitude 19.58 (0.02) 19.54 (0.02) 19.55 (0.02) 19.55 19.56 (0.02)
i magnitude 19.85 (0.03) 19.82 (0.03) 19.84 (0.04) 19.84 19.85 (0.04)
z magnitude 20.05 (0.1) 20.08 (0.1) 20.06 (0.1) 20.06 20.07 (0.1)
G magnitude 19.39 (0.04) 19.44 19.39 (0.004)
BP magnitude 19.30 (0.04) 19.19
RP magnitude 19.63 (0.08) 19.55
Pan g magnitude 19.25 (0.008)
Pan r magnitude 19.59 (0.01)
Pan i magnitude 19.83 (0.03)
Pan z magnitude 20.02 (0.04)
Pan y magnitude 19.82 (0.2)
E(B-V) 0.026

* 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.