LAWD 52

All names: LSPM J1338+7017, ASCC 37943, USNO-B1.0 1602-00099649, FBS 1337+705, WD 1337+701, NLTT 34829, PM J13388+7017, 2MASS J13385054+7017077, WDJ133850.48+701707.64, WISEA J133849.63+701707.4, AC +70 5824-0, LAWD 52, PLX 3124, EGGR 102, FBS B 897, TYC 4405-1633-1, Gaia DR3 1686708050268594944, LTT 18341, AC +70 5824, WD 1337+70, WD 1337+705, Gaia EDR3 1686708050268594944, 13388+7017, HIP 66578, GEN# +6.20020102, CSI+70-13376, UBV M 43535, GEN# +9.80238044, [TFW97] J133851.09+701707.89, CHSS 2551, PG 1337+705, UCAC4 802-021398, uvby98 980238044, UBV 12251, HIC 66578, G 238-44, PLX 3124.00, G238-44, Gaia DR2 1686708050268594944, TIC 153991946

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 McCleery et al. 2020 MWDD H Gaia DR2 Bedard et al. 2017 Tremblay et al. 2017 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Gianninas et al. 2011 Liebert et al. 2005 Zuckerman et al. 2003 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 13 38 49.21 (0.03) 13 38 49.25 (0.04) 13 38 49.25 (0.04) 13 38 50.40 13 38 49.21 13 38 50.48 (0.03) 13 38 49.25 13 38 55.68
Declination 70 17 07.25 (0.03) 70 17 07.26 (0.03) 70 17 07.26 (0.03) 70 17 06.00 70 17 07.25 70 17 07.64 (0.03) 70 17 07.26 70 17 12.84
Spectral type DAZ DAZ DA DA DA DAZ DA DAZ2.5 DA DAZ DA DA2.4 DA2
Effective temperature [K] 20319.0 (409) 20622.7 (163) 17705.0 21311.0 (328) 21290.0 (330) 20464.0 (103) 21150.0 (320) 20464.0 21290.0 (325) 20460.0 (306) 20435.0 21515.0 (185)
log(g) [cgs] 7.93 (0.03) 7.95 (0.01) 7.79 7.96 (0.05) 7.93 (0.05) 7.90 (0.01) 7.95 (0.05) 7.93 (0.05) 7.90 (0.05) 7.87 8.00 (0.007)
Mass [M] 0.585 (0.01) 0.51 0.56 (0.1) 0.58 (0.01) 0.6 (0.03) 0.59 (0.03) 0.57 (0.02) 0.626 (0.005)
log(Luminosity) [L] -1.48 -1.50
Cooling age [Gyr] 0.0751 0.0600 0.0661
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -6.666
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H) -5.58
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] 37.73 (0.03) 37.73 (0.03) 37.71 (0.04) 37.71 (0.04) 38.29 (3) 40.33 (3) 30.50 (6) 37.73 37.73 (0.03) 37.71 (0.04) 25.00
Distance [pc] 26.50 (0.02) 26.50 (0.02) 26.52 (0.03) 26.52 (0.03) 26.10 (2) 26.12 (2) 24.80 (2) 32.80 (7) 24.79 28.00 28.00 26.50 26.50 (0.02) 26.52 (0.03) 40.00
Composition H H H H H
Proper motion (right ascension) [mas/yr] -402.0785542 (0.04) -402.0929376 (0.08) -402.079 (0.04) -402.0929376
Proper motion (declination) [mas/yr] -24.55577023 (0.03) -24.60802087 (0.07) -24.556 (0.03) -24.60802087
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.54 (0.01)
V magnitude 12.77 (0.01) 12.77 12.79 12.60 (0.01)
R magnitude 13.01 (0.05)
I magnitude 12.98
J magnitude 13.21 13.25 (0.02)
H magnitude 13.25 13.36 (0.03)
K magnitude 13.36 13.45 (0.04)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 12.77 (0.0008) 12.79 12.79 12.77 12.77 (0.003) 12.79
BP magnitude 12.69 (0.0008) 12.67 12.67
RP magnitude 12.97 (0.0005) 12.97 12.97
Pan g magnitude 12.68 (0.0004)
Pan r magnitude 12.99 (0.003)
Pan i magnitude 13.30 (0.005)
Pan z magnitude 13.56 (0.002)
Pan y magnitude 13.74 (0.007)
E(B-V) 0.001

* 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.