J06513+5200

LAMOSTJ065121.02+520025.5  ·  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]30339 ± 676
log g5.822 ± 0.099
log n(He)/n(H)-2.051 ± 0.143
reduced χ²0.985 over 639 points
radial velocity-211.0 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 18:27:50

Fit — Lei (TLUSTY)

Teff [K]30300 ± 420
log g5.820 ± 0.090
log n(He)/n(H)-2.380 ± 0.180
gridsLei et al. 2019, ApJ 881, 135
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

cosmic rays12 pixels cancelled
source filespec-57814-GAC101N53M1_sp08-112.fits.gz

Gaia astrometry

Gaia DR3 source993122779593859584
parallax [mas]0.3821 ± 0.0503
G16.273
Gabs4.208
μα [mas/yr]0.394
μδ [mas/yr]-3.021
l, b164.199, 21.048

Published (Culpan et al. 2022)

class (Culpan)sdB
Teff [K]30991 ± 261
log g5.99 ± 0.06
log y-2.67 ± 0.11
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-3.42-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-3.05-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-2.89-40.0, 31.64.2-43.0, 43.0
Hε3970.07-2.79-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-2.74-20.0, 26.24.0-31.8, 32.0
Hη3835.38-2.70-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-2.67-16.0, 16.03.9-15.6, 16.7
Hι3770.63-2.65-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-3.30-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-3.15-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-2.83-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-3.46-15.0, 15.05.1-15.0, 15.0