J05333+2126

LAMOSTJ053323.55+212620.3 · 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

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

Results and provenance

Fit — Bamberg

T_eff [K]	52519 ± 2648
log g	5.726 ± 0.138
log n(He)/n(H)	-3.490 ± 0.467
reduced χ²	0.999 over 746 points
radial velocity	-38.0 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
fitted	04/09/2026 18:26:59

Fit — Lei (TLUSTY)

T_eff [K]	48580 ± 1160
log g	5.510 ± 0.060
log n(He)/n(H)	-3.000 ± 0.000
grids	Lei et al. 2019, ApJ 881, 135 SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid
helium	published as a limit

Observation

source file

spec-56653-GAC085N22M1_sp02-152.fits.gz

Gaia astrometry

Gaia DR3 source	3403657609512772096
parallax [mas]	0.6273 ± 0.0778
G	16.877
G_abs	5.972
μ_α [mas/yr]	-1.558
μ_δ [mas/yr]	-1.370
l, b	184.903, -6.316

Published (Culpan et al. 2022)

class (Culpan)	sdO
T_eff [K]	50546 ± 919
log g	5.60 ± 0.04
log y	-3.29 ± 0.08
reference	2021ApJS..256...28L

Fitted lines

line	λ [Å]	shift [Å]	continuum at	±avg	fitted over
H_β	4861.32	-0.62	-40.0, 40.0	5.0	-45.0, 45.0
H_γ	4340.46	-0.55	-40.0, 36.8	4.5	-43.0, 43.0
H_δ	4101.73	-0.52	-40.0, 31.6	4.2	-43.0, 43.0
H_ε	3970.07	-0.50	-28.0, 30.0	4.1	-30.0, 35.0
H_ζ	3889.05	-0.49	-20.0, 26.2	4.0	-31.8, 32.0
H_η	3835.38	-0.49	-20.0, 14.6	4.0	-20.7, 21.8
H_θ	3797.90	-0.48	-16.0, 16.0	3.9	-15.6, 16.7
H_ι	3770.63	-0.48	-13.0, 13.0	3.9	-11.7, 11.6
He II 4686	4685.70	-0.59	-11.9, 11.9	4.9	-15.0, 13.8
He II 5412	5411.52	-0.69	-15.0, 15.0	5.6	-15.0, 15.0
He II 4542	4541.59	-0.58	-15.0, 20.0	4.7	-20.0, 20.0
He II 4200	4199.84	-0.53	-23.5, 33.8	4.3	-20.0, 20.0
He I 4472	4471.60	-0.57	-15.0, 15.0	4.6	-15.0, 15.0
He I 4026	4026.29	-0.51	-24.2, 15.0	4.2	-15.0, 15.0
He I 4922	4921.93	-0.62	-15.0, 15.0	5.1	-15.0, 15.0