J06463+2920

GALEXJ06463+2920  ·  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

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]41887 ± 342
log g6.145 ± 0.039
log n(He)/n(H)-3.463 ± 0.210
reduced χ²0.996 over 636 points
radial velocity-167.0 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 18:27:46

Fit — Lei (TLUSTY)

Teff [K]37930 ± 360
log g6.000 ± 0.050
log n(He)/n(H)-3.000 ± 0.000
gridsLei et al. 2018, ApJ 868, 70
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid
heliumpublished as a limit

Observation

source filespec-59909-HD065357N310719V02_sp02-084.fits.gz

Gaia astrometry

Gaia DR3 source3386622158606040960
parallax [mas]2.0918 ± 0.0437
G13.571
Gabs5.200
μα [mas/yr]7.399
μδ [mas/yr]-24.698
l, b185.886, 11.890

Published (Culpan et al. 2022)

class (Culpan)sdOB
class (SIMBAD)sdOB
Teff [K]41489 ± 229
log g6.16 ± 0.03
log y-3.88 ± 0.27
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-2.71-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-2.42-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-2.28-40.0, 31.64.2-43.0, 43.0
Hε3970.07-2.21-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-2.17-20.0, 26.24.0-31.8, 32.0
Hη3835.38-2.14-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-2.12-16.0, 16.03.9-15.6, 16.7
Hι3770.63-2.10-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-2.61-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-2.49-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-2.24-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-2.74-15.0, 15.05.1-15.0, 15.0