J03383+4144

LAMOSTJ033821.59+414404.5  ·  Culpan knownhsd

χ²/N = 0.97

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]26154 ± 221
log g5.654 ± 0.038
log n(He)/n(H)-1.484 ± 0.037
reduced χ²0.974 over 660 points
radial velocity-63.0 km s−1
resolution (FWHM)2.50 Å
lines fitted13
gridsHE-0.041.fits
HE-0.125.fits
HE-0.300.fits
HE-0.550.fits
+9 more
fitted04/09/2026 18:26:15

Fit — Lei (TLUSTY)

Teff [K]27200 ± 140
log g5.590 ± 0.030
log n(He)/n(H)-1.510 ± 0.030
gridsLei et al. 2018, ApJ 868, 70
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays3 pixels cancelled
source filespec-57035-GAC054N40B1_sp11-237.fits.gz

Gaia astrometry

Gaia DR3 source237331822538478592
parallax [mas]0.9964 ± 0.0370
G15.187
Gabs5.241
μα [mas/yr]-0.524
μδ [mas/yr]-6.279
l, b153.339, -11.075

Published (Culpan et al. 2022)

class (Culpan)sdB
Teff [K]27936 ± 263
log g5.64 ± 0.03
log y-1.55 ± 0.02
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-1.02-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-0.91-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-0.86-40.0, 31.64.2-43.0, 43.0
Hε3970.07-0.83-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-0.82-20.0, 26.24.0-31.8, 32.0
Hη3835.38-0.81-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-0.80-16.0, 16.03.9-15.6, 16.7
Hι3770.63-0.79-13.0, 13.03.9-11.7, 11.6
Hκ3750.15-0.79-10.0, 10.03.9-7.4, 8.7
He II 46864685.70-0.98-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-0.94-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-0.85-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-1.03-15.0, 15.05.1-15.0, 15.0