J20136+0928

TYC1077-218-1  ·  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]34762 ± 214
log g5.336 ± 0.022
log n(He)/n(H)-2.633 ± 0.061
reduced χ²0.991 over 638 points
radial velocity-103.0 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 18:33:14

Observation

source filespec-58632-HD201303N115103V01_sp01-022.fits.gz

Gaia astrometry

Gaia DR3 source4299431347569705216
parallax [mas]1.4252 ± 0.0378
G12.385
Gabs3.209
μα [mas/yr]-11.599
μδ [mas/yr]3.420
l, b51.164, -13.480

Published (Culpan et al. 2022)

class (Culpan)sdB
Teff [K]35185 ± 189
log g5.35 ± 0.03
log y-2.68 ± 0.03
reference2021ApJS..256...28L

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-1.67-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-1.49-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-1.41-40.0, 31.64.2-43.0, 43.0
Hε3970.07-1.36-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-1.34-20.0, 26.24.0-31.8, 32.0
Hη3835.38-1.32-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-1.30-16.0, 16.03.9-15.6, 16.7
Hι3770.63-1.30-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-1.61-11.9, 11.94.9-15.0, 13.8
He I 44724471.60-1.54-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-1.38-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-1.69-15.0, 15.05.1-15.0, 15.0