J01266+1608

PG0123+159  ·  Culpan knownhsd

χ²/N = 0.96

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]29603 ± 185
log g5.683 ± 0.024
log n(He)/n(H)-2.394 ± 0.036
reduced χ²0.958 over 640 points
radial velocity-31.0 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 18:25:32

Fit — Lei (TLUSTY)

Teff [K]30490 ± 130
log g5.720 ± 0.010
log n(He)/n(H)-2.420 ± 0.030
gridsLei et al. 2018, ApJ 868, 70
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

source filespec-57299-EG013129N152044B01_sp15-074.fits.gz

Gaia astrometry

Gaia DR3 source2592234628262141312
parallax [mas]1.0486 ± 0.0388
G14.301
Gabs4.460
μα [mas/yr]-2.611
μδ [mas/yr]-11.399
l, b135.116, -45.901

Published (Culpan et al. 2022)

class (Culpan)sdB
class (SIMBAD)sdB
Teff [K]29716 ± 279
log g5.29 ± 0.04
log y-2.47 ± 0.04
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-0.50-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-0.45-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-0.42-40.0, 31.64.2-43.0, 43.0
Hε3970.07-0.41-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-0.40-20.0, 26.24.0-31.8, 32.0
Hη3835.38-0.40-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-0.39-16.0, 16.03.9-15.6, 16.7
Hι3770.63-0.39-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-0.48-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-0.46-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-0.42-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-0.51-15.0, 15.05.1-15.0, 15.0