J03276+3808

FBS0324+379  ·  Culpan knownhsd

χ²/N = 0.98

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]25099 ± 201
log g5.481 ± 0.028
log n(He)/n(H)-2.722 ± 0.059
reduced χ²0.976 over 659 points
radial velocity-196.0 km s−1
resolution (FWHM)2.50 Å
lines fitted13
gridsHE-0.041.fits
HE-0.125.fits
HE-0.300.fits
HE-0.550.fits
+9 more
fitted04/09/2026 18:26:13

Fit — Lei (TLUSTY)

Teff [K]26010 ± 150
log g5.520 ± 0.010
log n(He)/n(H)-2.840 ± 0.050
gridsLei et al. 2018, ApJ 868, 70
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

source filespec-56975-GAC052N35B2_sp11-138.fits.gz

Gaia astrometry

Gaia DR3 source234861632224343424
parallax [mas]1.2703 ± 0.0340
G14.201
Gabs4.772
μα [mas/yr]15.418
μδ [mas/yr]-21.989
l, b153.825, -15.193

Published (Culpan et al. 2022)

class (Culpan)sdB
class (SIMBAD)sdB:
Teff [K]24809 ± 298
log g5.27 ± 0.03
log y-3.01 ± 0.03
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-3.18-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-2.84-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-2.68-40.0, 31.64.2-43.0, 43.0
Hε3970.07-2.60-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-2.54-20.0, 26.24.0-31.8, 32.0
Hη3835.38-2.51-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-2.48-16.0, 16.03.9-15.6, 16.7
Hι3770.63-2.47-13.0, 13.03.9-11.7, 11.6
Hκ3750.15-2.45-10.0, 10.03.9-7.4, 8.7
He II 46864685.70-3.06-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-2.92-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-2.63-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-3.22-15.0, 15.05.1-15.0, 15.0