J06208+1918

LAMOSTJ062049.36+191828.9  ·  Culpan knownhsd

χ²/N = 0.97

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]28604 ± 241
log g5.710 ± 0.036
log n(He)/n(H)-2.131 ± 0.043
reduced χ²0.968 over 636 points
radial velocity-152.0 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 18:27:30

Fit — Lei (TLUSTY)

Teff [K]30420 ± 100
log g5.710 ± 0.020
log n(He)/n(H)-2.050 ± 0.070
gridsLei et al. 2018, ApJ 868, 70
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays20 pixels cancelled
source filespec-59617-TD062610N184524H01_sp03-115.fits.gz

Gaia astrometry

Gaia DR3 source3373940219694568576
parallax [mas]1.0178 ± 0.0363
G14.938
Gabs5.056
μα [mas/yr]5.539
μδ [mas/yr]8.192
l, b192.331, 2.229

Published (Culpan et al. 2022)

class (Culpan)sdB
Teff [K]29806 ± 191
log g5.89 ± 0.03
log y-2.37 ± 0.04
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-2.46-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-2.20-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-2.08-40.0, 31.64.2-43.0, 43.0
Hε3970.07-2.01-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-1.97-20.0, 26.24.0-31.8, 32.0
Hη3835.38-1.94-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-1.93-16.0, 16.03.9-15.6, 16.7
Hι3770.63-1.91-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-2.38-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-2.27-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-2.04-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-2.50-15.0, 15.05.1-15.0, 15.0