J14193+2946sdOB

PB3580 · 14:19:22.56 29:46:50.27 · 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

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

Results and provenance

Fit — Bamberg

T_eff [K]	35890 ± 337
log g	5.708 ± 0.047
log n(He)/n(H)	-1.532 ± 0.049
reduced χ²	0.994 over 639 points
radial velocity	8.0 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 18:31:19

Fit — Lei (TLUSTY)

T_eff [K]	34740 ± 350
log g	5.620 ± 0.110
log n(He)/n(H)	-1.520 ± 0.060
grids	Lei et al. 2019, ApJ 881, 135 SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

S/N (classifier)	60.1
source file	spec-57844-HD142214N292211M02_sp03-135.fits.gz

Gaia astrometry

Gaia DR3 source	1284970278417991680
parallax [mas]	0.2240 ± 0.0760
G	17.378
μ_α [mas/yr]	-4.984
μ_δ [mas/yr]	-12.725
l, b	45.939, 70.520

Published (Culpan et al. 2022)

class (Culpan)	sdOB
class (SIMBAD)	sdOB
T_eff [K]	34961 ± 907
log g	5.74 ± 0.13
log y	-1.80 ± 0.20
reference	2017OAst...26..164G

Classifier

AGREES

fitted Teff 34961 logg 5.74 logY -1.8 2017OAst...26..164G

auto: He II 0.45 (3.9 sigma), possible composite (4.9 sigma) -- worth an SED

Fitted lines

line	λ [Å]	shift [Å]	continuum at	±avg	fitted over
H_β	4861.32	0.13	-40.0, 40.0	5.0	-45.0, 45.0
H_γ	4340.46	0.12	-40.0, 36.8	4.5	-43.0, 43.0
H_δ	4101.73	0.11	-40.0, 31.6	4.2	-43.0, 43.0
H_ε	3970.07	0.11	-28.0, 30.0	4.1	-30.0, 35.0
H_ζ	3889.05	0.10	-20.0, 26.2	4.0	-31.8, 32.0
H_η	3835.38	0.10	-20.0, 14.6	4.0	-20.7, 21.8
H_θ	3797.90	0.10	-16.0, 16.0	3.9	-15.6, 16.7
H_ι	3770.63	0.10	-13.0, 13.0	3.9	-11.7, 11.6
He II 4686	4685.70	0.13	-11.9, 11.9	4.9	-15.0, 13.8
He I 4472	4471.60	0.12	-15.0, 15.0	4.6	-15.0, 15.0
He I 4026	4026.29	0.11	-24.2, 15.0	4.2	-15.0, 15.0
He I 4922	4921.93	0.13	-15.0, 15.0	5.1	-15.0, 15.0