All names: SDSS J113748.30-002714.7, SDSS J113748.30-002714.6, SDSS J113748.31-002714.7, WIRED J113748.30-002714.6, WD 1135-001.1, Gaia DR2 3794250972021745920, LBQS 1135-0010, WD 1135-001, SDSS J113738.38-002721.7, SDSS J113738.37-002721.6, WD 1135-001A, PSO J113738.293+002720.625, 2QZ J113748.2-002715, SDSS J113738.37-002721.7
Parameter | Unit | MWDD H | Pan-STARRS DR1 | Gaia DR2 | Tremblay et al. 2011 | Harris et al. 2003 | SDSS DR12 | Simbad | Eisenstein et al. 2006 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2013 | Kleinman et al. 2013 | Kleinman et al. 2004 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 11 37 38.27 (0.2) | 11 37 38.37 | 11 37 38.37 | 11 37 38.37 | 11 37 38.37 | 11 37 37.70 | 11 37 47.71 | 11 37 38.37 | 11 37 38.37 | 11 37 38.37 | 11 37 38.37 | |||||
Declination | -00 27 20.67 (0.1) | -00 27 21.67 | -00 27 21.66 | -00 27 21.66 | -00 27 21.66 | -00 27 19.08 | -00 27 12.96 | -00 27 21.69 | -00 27 21.69 | -00 27 21.66 | -00 27 21.71 | |||||
Spectral type | DA | DA | DA4 | DA | DA | DA | DA5.7 | DA3.0 | DA | DA | DA | |||||
Effective temperature | [K] | 8500.0 | 8580.0 (50) | 8739.0 (30) | 8780.0 (40) | 8601.0 (44) | 8449.0 (35) | 8489.0 (33) | 8825.0 (28) | |||||||
log(g) | [cgs] | 8.00 | 8.37 (0.07) | 8.36 (0.06) | 8.17 (0.07) | 8.05 (0.07) | 8.14 (0.05) | 8.12 (0.08) | 8.49 (0.04) | |||||||
Mass | [M☉] | 0.593 | 0.83 (0.04) | 0.665 (0.05) | ||||||||||||
log(Luminosity) | [L☉] | |||||||||||||||
Cooling age | [Gyr] | 0.9106 | 1.7378 | |||||||||||||
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] | 9.43 (0.2) | ||||||||||||||
Distance | [pc] | 106.07 (2) | ||||||||||||||
Composition | H | H | ||||||||||||||
Proper motion (right ascension) | [mas/yr] | -93.36288567 (0.4) | -92.0 | -88.1 | -88.1 | -87.0 | ||||||||||
Proper motion (declination) | [mas/yr] | 60.50314953 (0.2) | 58.0 | 60.0 | 60.0 | 58.0 | ||||||||||
Variability | ||||||||||||||||
Magnetic | ||||||||||||||||
Bd | [MG] | |||||||||||||||
Infrared excess (disk) | ||||||||||||||||
Binarity | ||||||||||||||||
B magnitude | ||||||||||||||||
V magnitude | ||||||||||||||||
R magnitude | ||||||||||||||||
I magnitude | ||||||||||||||||
J magnitude | 17.42 | |||||||||||||||
H magnitude | 17.44 | |||||||||||||||
K magnitude | 17.49 | |||||||||||||||
u magnitude | 18.32 | 18.35 (0.01) | 18.33 | 18.33 (0.02) | 18.33 (0.02) | 18.32 | 19.60 | 18.33 (0.02) | 18.33 (0.02) | 18.33 (0.02) | 18.32 (0.03) | |||||
g magnitude | 17.96 | 17.93 (0.006) | 17.95 | 17.96 (0.03) | 17.96 (0.03) | 17.96 | 19.35 | 17.95 (0.03) | 17.95 (0.03) | 17.95 (0.03) | 17.96 (0.03) | |||||
r magnitude | 17.89 | 17.90 (0.006) | 17.89 | 17.89 (0.02) | 17.89 (0.02) | 17.89 | 19.64 | 17.88 (0.02) | 17.88 (0.02) | 17.88 (0.02) | 17.89 (0.02) | |||||
i magnitude | 17.95 | 17.96 (0.007) | 17.96 | 17.96 (0.01) | 17.96 (0.01) | 17.96 | 19.93 | 17.96 (0.01) | 17.96 (0.01) | 17.96 (0.01) | 17.96 (0.01) | |||||
z magnitude | 18.03 | 18.05 (0.02) | 18.04 | 18.03 (0.03) | 18.03 (0.03) | 18.04 | 20.03 | 18.04 (0.03) | 18.04 (0.03) | 18.04 (0.03) | 18.04 (0.03) | |||||
G magnitude | 17.88 | |||||||||||||||
BP magnitude | 17.97 | |||||||||||||||
RP magnitude | 17.65 | |||||||||||||||
Pan g magnitude | 17.92 (0.006) | |||||||||||||||
Pan r magnitude | 17.92 (0.006) | |||||||||||||||
Pan i magnitude | 17.98 (0.008) | |||||||||||||||
Pan z magnitude | 18.08 (0.01) | |||||||||||||||
Pan y magnitude | 18.15 (0.01) |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.