J00191+5230

LAMOSTJ001908.76+523042.7 · Culpan knownhsd

outside the grid 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

Observed spectrum in black, model in red, offset by line. Balmer series left, helium right.

Results and provenance

Fit — Bamberg

T_eff [K]	59679 ± 2299
log g	5.011 ± 0.179
log n(He)/n(H)	-1.248 ± 0.177
reduced χ²	0.959 over 745 points
radial velocity	187.0 km s⁻¹
resolution (FWHM)	2.50 Å
lines fitted	15
grids	HE-0.041.fits HE-0.125.fits HE-0.300.fits HE-0.550.fits +9 more
settled	outside the grid
fitted	04/09/2026 18:25:02

Fit — Lei (TLUSTY)

T_eff [K]	51870 ± 5990
log g	5.190 ± 0.300
log n(He)/n(H)	-1.460 ± 0.140
grids	Lei et al. 2020, ApJ 889, 117 SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays	3 pixels cancelled
source file	spec-58100-GACII006N52B1_sp03-207.fits.gz

Gaia astrometry

Gaia DR3 source	419143904215897728
parallax [mas]	0.1313 ± 0.0711
G	17.124
μ_α [mas/yr]	2.855
μ_δ [mas/yr]	-0.467
l, b	117.952, -10.047

Published (Culpan et al. 2022)

class (Culpan)	sdO
T_eff [K]	52767 ± 1480
log g	5.28 ± 0.08
log y	-1.40 ± 0.08
reference	2021ApJS..256...28L

Fitted lines

line	λ [Å]	shift [Å]	continuum at	±avg	fitted over
H_β	4861.32	3.03	-40.0, 40.0	5.0	-45.0, 45.0
H_γ	4340.46	2.71	-40.0, 36.8	4.5	-43.0, 43.0
H_δ	4101.73	2.56	-40.0, 31.6	4.2	-43.0, 43.0
H_ε	3970.07	2.48	-28.0, 30.0	4.1	-30.0, 35.0
H_ζ	3889.05	2.43	-20.0, 26.2	4.0	-31.8, 32.0
H_η	3835.38	2.39	-20.0, 14.6	4.0	-20.7, 21.8
H_θ	3797.90	2.37	-16.0, 16.0	3.9	-15.6, 16.7
H_ι	3770.63	2.35	-13.0, 13.0	3.9	-11.7, 11.6
He II 4686	4685.70	2.92	-11.9, 11.9	4.9	-15.0, 13.8
He II 5412	5411.52	3.38	-15.0, 15.0	5.6	-15.0, 15.0
He II 4542	4541.59	2.83	-15.0, 20.0	4.7	-20.0, 20.0
He II 4200	4199.84	2.62	-23.5, 33.8	4.3	-20.0, 20.0
He I 4472	4471.60	2.79	-15.0, 15.0	4.6	-15.0, 15.0
He I 4026	4026.29	2.51	-24.2, 15.0	4.2	-15.0, 15.0
He I 4922	4921.93	3.07	-15.0, 15.0	5.1	-15.0, 15.0