J23093+3653

LAMOSTJ230919.30+365359.3  ·  Culpan knownhsd

χ²/N = 0.99

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]33669 ± 376
log g5.774 ± 0.052
log n(He)/n(H)-1.511 ± 0.054
reduced χ²0.991 over 637 points
radial velocity-81.0 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 18:34:11

Fit — Lei (TLUSTY)

Teff [K]33520 ± 790
log g5.680 ± 0.040
log n(He)/n(H)-1.410 ± 0.050
gridsLei et al. 2020, ApJ 889, 117
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays6 pixels cancelled
source filespec-59164-GACII346N36B1_sp04-245.fits.gz

Gaia astrometry

Gaia DR3 source1915148289773812352
parallax [mas]0.5249 ± 0.0545
G16.382
Gabs4.994
μα [mas/yr]2.896
μδ [mas/yr]-0.173
l, b101.172, -21.620

Published (Culpan et al. 2022)

class (Culpan)sdOB
Teff [K]33190 ± 292
log g5.82 ± 0.06
log y-1.57 ± 0.05
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-1.31-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-1.17-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-1.11-40.0, 31.64.2-43.0, 43.0
Hε3970.07-1.07-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-1.05-20.0, 26.24.0-31.8, 32.0
Hη3835.38-1.04-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-1.03-16.0, 16.03.9-15.6, 16.7
Hι3770.63-1.02-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-1.27-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-1.21-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-1.09-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-1.33-15.0, 15.05.1-15.0, 15.0