J10151+0033

Culpan hotsd

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

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

Results and provenance

Fit — Bamberg

T_eff [K]	32622 ± 290
log g	5.838 ± 0.047
log n(He)/n(H)	-1.993 ± 0.054
reduced χ²	0.989 over 636 points
radial velocity	-154.0 km s⁻¹
resolution (FWHM)	2.50 Å
lines fitted	12
grids	HE-0.041.fits HE-0.125.fits HE-0.300.fits HE-0.550.fits +9 more
fitted	04/09/2026 18:30:07

Fit — Lei (TLUSTY)

T_eff [K]	32980 ± 360
log g	5.840 ± 0.070
log n(He)/n(H)	-2.060 ± 0.080
grids	Lei et al. 2019, ApJ 881, 135 SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays	3 pixels cancelled
source file	spec-57842-HD101651N014752B02_sp05-088.fits.gz

Gaia astrometry

Gaia DR3 source	3831905500061334912
parallax [mas]	0.9168 ± 0.0456
G	14.844
BP − RP	-0.429
G_abs	4.655
μ_α [mas/yr]	-3.506
μ_δ [mas/yr]	-2.543
RUWE	0.961
l, b	241.660, 44.051
selection	f_plx

Fitted lines

line	λ [Å]	shift [Å]	continuum at	±avg	fitted over
H_β	4861.32	-2.50	-40.0, 40.0	5.0	-45.0, 45.0
H_γ	4340.46	-2.23	-40.0, 36.8	4.5	-43.0, 43.0
H_δ	4101.73	-2.11	-40.0, 31.6	4.2	-43.0, 43.0
H_ε	3970.07	-2.04	-28.0, 30.0	4.1	-30.0, 35.0
H_ζ	3889.05	-2.00	-20.0, 26.2	4.0	-31.8, 32.0
H_η	3835.38	-1.97	-20.0, 14.6	4.0	-20.7, 21.8
H_θ	3797.90	-1.95	-16.0, 16.0	3.9	-15.6, 16.7
H_ι	3770.63	-1.94	-13.0, 13.0	3.9	-11.7, 11.6
He II 4686	4685.70	-2.41	-11.9, 11.9	4.9	-15.0, 13.8
He I 4472	4471.60	-2.30	-15.0, 15.0	4.6	-15.0, 15.0
He I 4026	4026.29	-2.07	-24.2, 15.0	4.2	-15.0, 15.0
He I 4922	4921.93	-2.53	-15.0, 15.0	5.1	-15.0, 15.0