J08125+1601

GALEXJ08125+1601  ·  Culpan knownhsd

χ²/N = 1.00

Spectrum

shaded: the intervals the fit used ·  │ a cancelled pixeldrag on either panel to zoom · dbl-click or Esc to reset · arrows to pan

The whole reduced spectrum above, the region marked on it below. Shaded bands are the intervals the fit used; a tick under the axis marks a pixel the rejection mask cancelled.

Line-profile fit — Bamberg

profile fit on the Bamberg grid
Observed spectrum in black, model in red, offset by line. Balmer series left, helium right.

Results and provenance

Fit — Bamberg

Teff [K]30987 ± 211
log g5.610 ± 0.029
log n(He)/n(H)-3.511 ± 0.317
reduced χ²1.004 over 639 points
radial velocity-164.0 km s−1
resolution (FWHM)2.50 Å
lines fitted12
gridsHE-0.041.fits
HE-0.125.fits
HE-0.300.fits
HE-0.550.fits
+9 more
fitted04/09/2026 18:29:03

Fit — Lei (TLUSTY)

Teff [K]31350 ± 130
log g5.520 ± 0.020
log n(He)/n(H)-3.000 ± 0.000
gridsLei et al. 2018, ApJ 868, 70
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid
heliumpublished as a limit

Observation

source filespec-56738-GAC122N14V2_sp09-093.fits.gz

Gaia astrometry

Gaia DR3 source655674865665718656
parallax [mas]1.2144 ± 0.0463
G13.674
Gabs4.147
μα [mas/yr]-16.361
μδ [mas/yr]-21.749
l, b206.995, 24.984

Published (Culpan et al. 2022)

class (Culpan)sdB
class (SIMBAD)sdB
Teff [K]31580 ± 490
log g5.56 ± 0.13
log y-2.90 ± 0.00
reference2012MNRAS.427.2180N

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-2.66-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-2.37-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-2.24-40.0, 31.64.2-43.0, 43.0
Hε3970.07-2.17-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-2.13-20.0, 26.24.0-31.8, 32.0
Hη3835.38-2.10-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-2.08-16.0, 16.03.9-15.6, 16.7
Hι3770.63-2.06-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-2.56-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-2.45-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-2.20-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-2.69-15.0, 15.05.1-15.0, 15.0