J10415+1842

GALEXJ10415+1842  ·  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]36214 ± 224
log g5.904 ± 0.032
log n(He)/n(H)-1.577 ± 0.036
reduced χ²0.987 over 639 points
radial velocity-105.0 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 18:30:11

Fit — Lei (TLUSTY)

Teff [K]34890 ± 520
log g5.980 ± 0.030
log n(He)/n(H)-1.680 ± 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-57034-HD104231N181311V01_sp04-043.fits.gz

Gaia astrometry

Gaia DR3 source3986138020473930368
parallax [mas]1.9783 ± 0.0531
G12.967
Gabs4.487
μα [mas/yr]-4.215
μδ [mas/yr]-10.289
l, b221.755, 59.017

Published (Culpan et al. 2022)

class (Culpan)sdB
class (SIMBAD)sdB
Teff [K]34890 ± 680
log g5.80 ± 0.10
log y-1.68 ± 0.13
reference2012MNRAS.427.2180N

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-1.70-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-1.52-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-1.44-40.0, 31.64.2-43.0, 43.0
Hε3970.07-1.39-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-1.36-20.0, 26.24.0-31.8, 32.0
Hη3835.38-1.34-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-1.33-16.0, 16.03.9-15.6, 16.7
Hι3770.63-1.32-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-1.64-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-1.57-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-1.41-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-1.72-15.0, 15.05.1-15.0, 15.0