J00075+1335

PG0004+133  ·  Culpan knownhsd

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

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]28003 ± 137
log g5.449 ± 0.022
log n(He)/n(H)-1.921 ± 0.054
reduced χ²0.962 over 637 points
radial velocity-77.0 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 18:24:53

Fit — Lei (TLUSTY)

Teff [K]29560 ± 120
log g5.410 ± 0.010
log n(He)/n(H)-1.900 ± 0.040
gridsLei et al. 2020, ApJ 889, 117
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays6 pixels cancelled
source filespec-58109-EG001532N132509V01_sp14-193.fits.gz

Gaia astrometry

Gaia DR3 source2767874292175410560
parallax [mas]2.0535 ± 0.0285
G13.048
Gabs4.648
μα [mas/yr]-1.836
μδ [mas/yr]-19.581
l, b106.918, -47.904

Published (Culpan et al. 2022)

class (Culpan)sdB
class (SIMBAD)sdB2.5VHe7
Teff [K]30322 ± 142
log g5.47 ± 0.03
log y-1.74 ± 0.02
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-1.25-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-1.11-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-1.05-40.0, 31.64.2-43.0, 43.0
Hε3970.07-1.02-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-1.00-20.0, 26.24.0-31.8, 32.0
Hη3835.38-0.99-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-0.98-16.0, 16.03.9-15.6, 16.7
Hι3770.63-0.97-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-1.20-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-1.15-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-1.03-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-1.26-15.0, 15.05.1-15.0, 15.0