J03216+0538

PG0319+054  ·  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

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]31048 ± 226
log g5.857 ± 0.034
log n(He)/n(H)-2.276 ± 0.074
reduced χ²0.985 over 637 points
radial velocity-41.0 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 18:26:11

Fit — Lei (TLUSTY)

Teff [K]31550 ± 220
log g5.840 ± 0.050
log n(He)/n(H)-2.060 ± 0.030
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-56979-EG031921N032212M01_sp11-034.fits.gz

Gaia astrometry

Gaia DR3 source9132341717393792
parallax [mas]1.1602 ± 0.0421
G14.972
Gabs5.359
μα [mas/yr]4.548
μδ [mas/yr]-6.066
l, b176.524, -41.096

Published (Culpan et al. 2022)

class (Culpan)sdB
class (SIMBAD)sdB
Teff [K]30700 ± 500
log g5.74 ± 0.06
log y-2.40 ± 0.10
reference2015A&A...577A..26G

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-0.66-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-0.59-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-0.56-40.0, 31.64.2-43.0, 43.0
Hε3970.07-0.54-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-0.53-20.0, 26.24.0-31.8, 32.0
Hη3835.38-0.52-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-0.52-16.0, 16.03.9-15.6, 16.7
Hι3770.63-0.52-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-0.64-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-0.61-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-0.55-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-0.67-15.0, 15.05.1-15.0, 15.0