J23261+0516

PG2323+049  ·  Culpan knownhsd

χ²/N = 0.97

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]28099 ± 201
log g5.550 ± 0.030
log n(He)/n(H)-2.851 ± 0.092
reduced χ²0.968 over 639 points
radial velocity14.0 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 18:34:18

Fit — Lei (TLUSTY)

Teff [K]29340 ± 70
log g5.630 ± 0.020
log n(He)/n(H)-2.760 ± 0.060
gridsLei et al. 2019, ApJ 881, 135
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays3 pixels cancelled
source filespec-56561-EG233013N050046B01_sp03-071.fits.gz

Gaia astrometry

Gaia DR3 source2661097763064489600
parallax [mas]0.6864 ± 0.0537
G15.387
Gabs4.645
μα [mas/yr]1.438
μδ [mas/yr]-3.466
l, b87.265, -51.593

Published (Culpan et al. 2022)

class (Culpan)sdB
class (SIMBAD)sdB
Teff [K]28799 ± 256
log g5.31 ± 0.03
log y-2.96 ± 0.03
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.320.23-40.0, 40.05.0-45.0, 45.0
Hγ4340.460.20-40.0, 36.84.5-43.0, 43.0
Hδ4101.730.19-40.0, 31.64.2-43.0, 43.0
Hε3970.070.19-28.0, 30.04.1-30.0, 35.0
Hζ3889.050.18-20.0, 26.24.0-31.8, 32.0
Hη3835.380.18-20.0, 14.64.0-20.7, 21.8
Hθ3797.900.18-16.0, 16.03.9-15.6, 16.7
Hι3770.630.18-13.0, 13.03.9-11.7, 11.6
He II 46864685.700.22-11.9, 11.94.9-15.0, 13.8
He I 44724471.600.21-15.0, 15.04.6-15.0, 15.0
He I 40264026.290.19-24.2, 15.04.2-15.0, 15.0
He I 49224921.930.23-15.0, 15.05.1-15.0, 15.0