J03571+2849

LAMOSTJ035710.48+284941.6  ·  Culpan knownhsd

χ²/N = 1.01

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]35214 ± 808
log g5.392 ± 0.097
log n(He)/n(H)-2.722 ± 0.222
reduced χ²1.011 over 637 points
radial velocity-47.0 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 18:26:23

Fit — Lei (TLUSTY)

Teff [K]33470 ± 630
log g5.310 ± 0.100
log n(He)/n(H)-2.730 ± 0.260
gridsLei et al. 2019, ApJ 881, 135
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

source filespec-56983-GAC060N28M1_sp03-217.fits.gz

Gaia astrometry

Gaia DR3 source166876629257005696
parallax [mas]0.1249 ± 0.1119
G17.404
μα [mas/yr]-0.236
μδ [mas/yr]-2.061
l, b164.954, -18.511

Published (Culpan et al. 2022)

class (Culpan)sdOB
class (SIMBAD)DA:/sd
Teff [K]34169 ± 368
log g5.15 ± 0.05
log y-2.68 ± 0.09
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-0.76-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-0.68-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-0.64-40.0, 31.64.2-43.0, 43.0
Hε3970.07-0.62-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-0.61-20.0, 26.24.0-31.8, 32.0
Hη3835.38-0.60-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-0.60-16.0, 16.03.9-15.6, 16.7
Hι3770.63-0.59-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-0.73-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-0.70-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-0.63-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-0.77-15.0, 15.05.1-15.0, 15.0