Ton S 231

All names: RE J0148-253, RE J014807-253225, [DWS97] For 2, GD 1401, BPM 47349, 2RE J014807-253210, Gaia DR3 5037875455706805504, EUVE J0148-25.3, 2RE J0148-253, RE J0148-25, EUVE J0148-25.5, WD 0145-257, Gaia EDR3 5037875455706805504, Ton S 231, GALEX J014808.2-253243, WDJ014808.16-253243.36, UCAC4 323-001866, Gaia DR2 5037875455706805504

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 01 48 08.32 (0.02) 01 48 08.31 (0.03) 01 48 08.32 01 48 08.16 (0.02) 01 48 08.31 01 48 08.30
Declination -25 32 44.27 (0.02) -25 32 44.24 (0.03) -25 32 44.27 -25 32 43.36 (0.02) -25 32 44.24 -25 32 40.92
Spectral type DA DA DA DA1.9 DA
Effective temperature [K] 19040.0 26700.0 (418) 25915.0 (37) 26089.0 (246)
log(g) [cgs] 7.56 7.95 (0.05) 7.86 (0.005) 7.95 (0.01)
Mass [M] 0.412 0.61 (0.03) 0.608 (0.007)
log(Luminosity) [L]
Cooling age [Gyr] 0.0468
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] 12.72 (0.04) 12.73 (0.04) 12.72 12.72 (0.04) 12.73 (0.04)
Distance [pc] 78.62 (0.2) 78.54 (0.2) 74.00 78.62 78.62 (0.2) 78.54 (0.2)
Composition H H
Proper motion (right ascension) [mas/yr] 132.5359654 (0.04) 132.5958479 (0.06) 132.536 (0.04) 132.5958479
Proper motion (declination) [mas/yr] -56.85231594 (0.03) -56.81106865 (0.05) -56.852 (0.03) -56.81106865
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity yes
B magnitude 14.30
V magnitude 14.51
R magnitude 14.97 (0.07)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.68 (0.004) 14.70 14.68 14.68 (0.003) 14.70
BP magnitude 14.54 (0.004) 14.48 14.48
RP magnitude 14.82 (0.01) 14.74 14.74
Pan g magnitude 14.53 (0.004)
Pan r magnitude 14.85 (0.02)
Pan i magnitude 15.28 (0.006)
Pan z magnitude 15.53 (0.004)
Pan y magnitude 15.50 (0.006)
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.