J17433+2132

HS1741+2133  ·  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]39421 ± 711
log g5.715 ± 0.083
log n(He)/n(H)-2.418 ± 0.158
reduced χ²0.988 over 639 points
radial velocity78.0 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 18:32:42

Fit — Lei (TLUSTY)

Teff [K]37590 ± 630
log g5.560 ± 0.080
log n(He)/n(H)-2.420 ± 0.130
gridsLei et al. 2018, ApJ 868, 70
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays9 pixels cancelled
source filespec-57519-HD175048N221858B01_sp10-044.fits.gz

Gaia astrometry

Gaia DR3 source4556063035156496768
parallax [mas]1.0696 ± 0.0234
G13.993
Gabs4.175
μα [mas/yr]-11.360
μδ [mas/yr]3.230
l, b45.765, 24.198

Published (Culpan et al. 2022)

class (Culpan)sdB+WD
class (SIMBAD)sdOB
Teff [K]40179 ± 394
log g5.93 ± 0.05
log y-2.55 ± 0.12
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.321.26-40.0, 40.05.0-45.0, 45.0
Hγ4340.461.13-40.0, 36.84.5-43.0, 43.0
Hδ4101.731.07-40.0, 31.64.2-43.0, 43.0
Hε3970.071.03-28.0, 30.04.1-30.0, 35.0
Hζ3889.051.01-20.0, 26.24.0-31.8, 32.0
Hη3835.381.00-20.0, 14.64.0-20.7, 21.8
Hθ3797.900.99-16.0, 16.03.9-15.6, 16.7
Hι3770.630.98-13.0, 13.03.9-11.7, 11.6
He II 46864685.701.22-11.9, 11.94.9-15.0, 13.8
He I 44724471.601.16-15.0, 15.04.6-15.0, 15.0
He I 40264026.291.05-24.2, 15.04.2-15.0, 15.0
He I 49224921.931.28-15.0, 15.05.1-15.0, 15.0