J14183-0322

HE1415-0309  ·  Culpan knownhsd

χ²/N = 1.00

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]29595 ± 472
log g5.659 ± 0.071
log n(He)/n(H)-3.593 ± 0.629
reduced χ²0.997 over 639 points
radial velocity-56.0 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 18:31:18

Fit — Lei (TLUSTY)

Teff [K]29790 ± 290
log g5.790 ± 0.030
log n(He)/n(H)-3.000 ± 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

source filespec-57482-HD141231S025819B01_sp06-090.fits.gz

Gaia astrometry

Gaia DR3 source3645920088861401216
parallax [mas]0.4478 ± 0.0743
G16.478
Gabs4.749
μα [mas/yr]-0.651
μδ [mas/yr]-11.087
l, b340.795, 52.980

Published (Culpan et al. 2022)

class (Culpan)sdB+WD
class (SIMBAD)sdB
Teff [K]29520 ± 500
log g5.56 ± 0.05
log y-2.87 ± 0.05
reference2005A&A...430..223L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-0.91-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-0.81-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-0.77-40.0, 31.64.2-43.0, 43.0
Hε3970.07-0.74-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-0.73-20.0, 26.24.0-31.8, 32.0
Hη3835.38-0.72-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-0.71-16.0, 16.03.9-15.6, 16.7
Hι3770.63-0.70-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-0.88-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-0.84-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-0.75-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-0.92-15.0, 15.05.1-15.0, 15.0