J02252+2348

Culpan hotsd

χ²/N = 0.96

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]50239 ± 472
log g5.812 ± 0.030
log n(He)/n(H)-1.894 ± 0.030
reduced χ²0.961 over 744 points
radial velocity-114.0 km s−1
resolution (FWHM)2.50 Å
lines fitted15
gridsHE-0.041.fits
HE-0.125.fits
HE-0.300.fits
HE-0.550.fits
+9 more
fitted04/09/2026 18:25:55

Fit — Lei (TLUSTY)

Teff [K]52640 ± 1380
log g5.460 ± 0.080
log n(He)/n(H)-1.920 ± 0.050
gridsLei et al. 2019, ApJ 881, 135
SYNSPEC 49 spectra from NLTE TLUSTY 204 model atmospheres, through XTgrid

Observation

source filespec-57362-EG022114N232535M01_sp09-212.fits.gz

Gaia astrometry

Gaia DR3 source101826669497182720
parallax [mas]1.3643 ± 0.0406
G13.817
BP − RP-0.317
Gabs4.492
μα [mas/yr]4.512
μδ [mas/yr]-6.839
RUWE1.044
l, b149.062, -34.264
selectionf_plx

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-1.85-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-1.65-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-1.56-40.0, 31.64.2-43.0, 43.0
Hε3970.07-1.51-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-1.48-20.0, 26.24.0-31.8, 32.0
Hη3835.38-1.46-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-1.44-16.0, 16.03.9-15.6, 16.7
Hι3770.63-1.43-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-1.78-11.9, 11.94.9-15.0, 13.8
He II 54125411.52-2.06-15.0, 15.05.6-15.0, 15.0
He II 45424541.59-1.73-15.0, 20.04.7-20.0, 20.0
He II 42004199.84-1.60-23.5, 33.84.3-20.0, 20.0
He I 44724471.60-1.70-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-1.53-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-1.87-15.0, 15.05.1-15.0, 15.0