J09372+1825

PG0934+186  ·  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]35950 ± 166
log g5.761 ± 0.018
log n(He)/n(H)-3.205 ± 0.113
reduced χ²0.993 over 639 points
radial velocity-136.0 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 18:29:48

Fit — Lei (TLUSTY)

Teff [K]35260 ± 200
log g5.600 ± 0.020
log n(He)/n(H)-2.760 ± 0.000
gridsLei et al. 2019, ApJ 881, 135
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid
heliumpublished as a limit

Observation

cosmic rays3 pixels cancelled
source filespec-59961-HD093702N162616B04_sp11-184.fits.gz

Gaia astrometry

Gaia DR3 source633011250955383168
parallax [mas]1.5375 ± 0.0467
G13.076
Gabs4.051
μα [mas/yr]-13.922
μδ [mas/yr]-10.018
l, b213.352, 44.679

Published (Culpan et al. 2022)

class (Culpan)sdB+WD
class (SIMBAD)sdB
Teff [K]35855 ± 112
log g5.76 ± 0.02
log y-3.20 ± 0.13
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-2.21-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-1.97-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-1.86-40.0, 31.64.2-43.0, 43.0
Hε3970.07-1.80-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-1.76-20.0, 26.24.0-31.8, 32.0
Hη3835.38-1.74-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-1.72-16.0, 16.03.9-15.6, 16.7
Hι3770.63-1.71-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-2.13-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-2.03-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-1.83-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-2.23-15.0, 15.05.1-15.0, 15.0